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CompTIA A+ Core 1 + Core 2 Preparation

Less Guessing.Better IT Support.

A laptop that will not charge. A printer that will not connect. An update that goes wrong. Build the knowledge to work through the problem, protect the data, and explain the fix.

30 days free with Hero Access. Then $149/month until canceled.

Core 1 + Core 2 In One Course
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Hero Access · A+
Empowerment Through Knowledge.Hero Cyber / A+
36Course Lessons16 In Core 1 · 20 In Core 2
2,304FlashcardsReview The Concepts And Distinctions
1,728Practice Questions & ActivitiesMove From Recall To Application
24/7On-Demand StudyYour Schedule. Your Selected Plan.

01 The Work Behind The Credential

Get Beyond “Have You Tried Restarting?”

Learn what sits behind a support request. Tech Hero connects hardware, networking, operating systems, security, and troubleshooting in one path for both CompTIA A+ cores.

01Diagnose With A Method

Trace a device or connectivity symptom through controlled checks before selecting a repair.

02Protect The User’s Data

Compare installation, security, and recovery choices across Windows, macOS, Linux, and mobile systems.

03Explain The Fix

Document service work with the evidence, user communication, and validation another technician needs.

Read More About Tech Hero

An IT support request rarely arrives with the cause attached. A laptop that will not charge may have a damaged port, an unsuitable cable, a failing battery, or a power supply problem. Tech Hero teaches you to separate those possibilities before replacing parts. Its 36 lessons connect mobile devices, hardware, networking, virtualization, operating systems, security, and troubleshooting with the procedures that make support reliable. You learn to inspect the platform, protect user data, choose an appropriate test, and check that the repair restored the functions the user needs.

The course covers both CompTIA A+ exam cores in one organized learning path. Core 1 contains 16 lessons focused on devices, connections, hardware, cloud services, and hardware diagnosis. Core 2 contains 20 lessons covering operating systems, software diagnosis, security, and professional support procedures. Across the course, 2,304 flashcards and 1,728 practice items give you different ways to revisit the material. Lessons also connect technical choices to ticket quality, customer communication, change control, privacy, and recovery so you can explain a solution as well as recognize one.

A smiling professional working at a laptop
Build The Skills Behind The CredentialDevices. Systems. Real Support.

02 Inside The Student Center

See How An IT Study Session Works.

Take a look before you enroll. Choose a tool to play its Tech Hero walkthrough, then jump to the part you want to explore.

Tech Hero / Student Center6 Walkthroughs · Captions Included
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Open The Student Center

03 Your Complete Course Map

See What You Will Actually Study.

Every Tech Hero lesson is listed below. Open a course area, explore a lesson, and see its chapter outline and linked study activities.

CompTIA A+ Core 1 + Core 2 Certification Mark
Preparation For A+Training from Hero Cyber. Certification is awarded separately by its issuing organization.
Both A+ Cores Included · Core 1: 16 Lessons · Core 2: 20 Lessons
36 Of 36 LessonsLessons · Flashcards · Practice
01Core 1 · Mobile Devices2 Lessons
1Mobile Hardware and Safe Service

Explore Service preparation and evidence, Replaceable mobile components, Integrated interfaces and privacy, and Safe mobile repair choices.

Explore The Lesson’s 4 Sections

Service preparation and evidence

  1. Identify the Exact Platform Before Service
  2. Turn a Complaint into Testable Observations
  3. Inspect Exterior Condition Before Energizing
  4. Isolate Power According to the Service Design
  5. Control Electrostatic Discharge and Contamination
  6. Track Screws Latches and Cable Orientation
  7. Protect Data and Define the Authorized Repair
  8. Use Controlled Comparisons and Recognize Limits
  9. Scenario-Based Quiz

Replaceable mobile components

  1. Interpret Battery Health Rather Than Charge Alone
  2. Select and Replace a Supported Healthy Battery
  3. Separate Keycap Faults from Keyboard Assembly Faults
  4. Keyboard Matrices Ribbons and Grouped Failures
  5. Mobile RAM Replacement Depends on Serviceability
  6. Mobile Storage Replacement Protects Identity and Data
  7. Wireless Cards Need Platform and Radio Compatibility
  8. Antenna Placement Is Part of the Radio System
  9. Scenario-Based Quiz

Integrated interfaces and privacy

  1. Camera Faults Have Optical Electrical and Access Layers
  2. Microphone Diagnosis Separates the Capture Path
  3. Biometric Components Require a Trusted Repair Path
  4. Near-Field Features Depend on Placement and Support
  5. Physical Privacy Controls Can Mimic Failure
  6. Display Images and Digitizer Input Are Separate Paths
  7. Cursor Drift Requires Scope and Surface Evidence
  8. Stylus Compatibility Is More Than Bluetooth Pairing
  9. Scenario-Based Quiz

Safe mobile repair decisions

  1. Swollen Batteries Require a Stop Rather Than a Repair Experiment
  2. Liquid Exposure Changes the Test Plan
  3. Broken Screens Require Assembly and Injury Assessment
  4. Charging Diagnosis Separates Source Cable Port and Battery
  5. Damaged Ports Are Mechanical and Electrical Faults
  6. Overheating Requires Load and Airflow Evidence
  7. Recognize Software Symptoms Without Erasing Hardware Evidence
  8. Verify the Repair and the Functions Disturbed by It
  9. Scenario-Based Quiz
2Mobile Accessories and Managed Connectivity

Explore Wired accessories and docks, Personal wireless connections, Cellular Wi-Fi and location, and Managed applications and synchronization.

Explore The Lesson’s 4 Sections

Wired accessories and docks

  1. Identify the USB Connection and Device Roles
  2. Separate USB-C Shape from Speed Video and Power
  3. Recognize microUSB and miniUSB Without Forcing Fit
  4. Identify Lightning Compatibility by Device Generation
  5. Evaluate a Docking Station as a Capability Bundle
  6. Compare a Port Replicator with a Dock
  7. Check Shared Power and Bandwidth Limits
  8. Verify Accessory Function Beyond the Connected Indicator
  9. Scenario-Based Quiz

Personal wireless connections

  1. Enable Discovery on the Intended Bluetooth Devices
  2. Confirm Bluetooth Pairing and Test the Service
  3. Separate Headset Playback Microphone and Call Routing
  4. Choose and Test Personal Speaker Output
  5. Match the Stylus Technology to the Display
  6. Select a Webcam and Verify the Intended Camera Path
  7. Compare Trackpads Drawing Pads and Pointing Sticks
  8. Recognize NFC Proximity and Its Bounded Purpose
  9. Scenario-Based Quiz

Cellular Wi-Fi and location

  1. Enable Wi-Fi and Verify Useful Connectivity
  2. Compare Cellular Generations with Actual Network Availability
  3. Distinguish a Physical SIM from an eSIM Profile
  4. Use a Hotspot as a Shared Upstream Connection
  5. Compare USB and Bluetooth Tethering Paths
  6. Explain GPS Location Independently of Map Downloads
  7. Understand Cellular-Assisted Location and Accuracy Limits
  8. Isolate the Active Mobile Connection Without Broad Resets
  9. Scenario-Based Quiz

Managed applications and synchronization

  1. Recognize Corporate Device Management and Ownership
  2. Respect BYOD Boundaries in a Managed Work Setup
  3. Interpret Policy Enforcement and Compliance Evidence
  4. Support Approved Corporate Application Assignment
  5. Synchronize the Intended Calendar Without Changing Invitations
  6. Synchronize Contacts While Preserving Source Ownership
  7. Support Business Mail with Account and Data-Use Awareness
  8. Verify Cloud Storage Synchronization and Data Caps
  9. Scenario-Based Quiz
02Core 1 · Networking4 Lessons
3Ports Transports and Network Services

Explore TCP UDP and application conversations, File web and remote-access services, Name mail directory and time services, and Service hosts appliances and embedded systems.

Explore The Lesson’s 4 Sections

TCP UDP and application conversations

  1. Separate the Application Protocol from the Transport
  2. Understand What TCP Reliability Provides
  3. Understand UDP and Application Responsibility
  4. Read Addresses Ports and Socket Endpoints
  5. Distinguish Listening Services from Client Sessions
  6. Interpret Filtering Without Opening Everything
  7. Choose Transport from the Conversation Requirements
  8. Build a Defensible Conversation Timeline
  9. Scenario-Based Quiz

File web and remote-access services

  1. Recognize FTP Control on TCP 21
  2. Distinguish Active FTP Data from Passive FTP Data
  3. Use SSH as an Encrypted Remote-Shell Service
  4. Recognize Telnet as a Legacy Plaintext Service
  5. Interpret HTTP Requests on the Common Web Port
  6. Distinguish HTTPS Protection from Website Trustworthiness
  7. Connect Modern File Sharing with SMB TCP 445
  8. Identify RDP While Keeping Remote Access Bounded
  9. Scenario-Based Quiz

Name mail directory and time services

  1. Support DNS on Both UDP and TCP 53
  2. Identify DHCP Server and Client UDP Ports
  3. Separate SMTP Mail Transfer from Mailbox Retrieval
  4. Explain POP3 Retrieval and Retention Behavior
  5. Explain IMAP Mailbox State Across Devices
  6. Recognize LDAP Directory Access Without Conflating Roles
  7. Separate the Three NetBIOS Over TCP/IP Services
  8. Explain Why Network Time Is a Shared Service
  9. Scenario-Based Quiz

Service hosts appliances and embedded systems

  1. Distinguish File Servers from Print Servers
  2. Use a Syslog Host to Centralize Event Evidence
  3. Separate Authentication Authorization and Accounting
  4. Recognize a Database Server Behind an Application
  5. Explain Spam Gateways in the Mail Delivery Path
  6. Distinguish Proxy Mediation from Combined Security Controls
  7. Explain Load Balancing and Meaningful Health Checks
  8. Handle Embedded IoT and SCADA Roles Safely
  9. Scenario-Based Quiz
4Wireless Networks and Network Devices

Explore Radio bands standards and channels, Personal wireless and contactless technology, Forwarding access and perimeter devices, and WAN handoffs PoE and physical infrastructure.

Explore The Lesson’s 4 Sections

Radio bands standards and channels

  1. Separate Frequency Bands from Network Names
  2. Assess the 2.4 GHz Coverage and Contention Tradeoff
  3. Use 5 GHz Capacity Without Assuming Identical Coverage
  4. Recognize 6 GHz Compatibility and Deployment Limits
  5. Recognize Legacy 802.11a B and G Associations
  6. Compare Modern Wi-Fi Generations and Negotiated Capability
  7. Choose Channel Width for the Local Spectrum Conditions
  8. Respect Regional Channels and Protected Spectrum Users
  9. Scenario-Based Quiz

Personal wireless and contactless technology

  1. Match Bluetooth Behavior to the Supported Service
  2. Plan Bluetooth Coexistence in a Busy 2.4 GHz Area
  3. Recognize NFC as a Close-Proximity Interaction
  4. Compare Passive and Active RFID Identification
  5. Choose Wi-Fi Bluetooth NFC or RFID by Task
  6. Check Client and Access-Point Compatibility Together
  7. Relate Placement Obstacles and Interference to the Radio Path
  8. Plan a Small Wireless Deployment from Requirements
  9. Scenario-Based Quiz

Forwarding access and perimeter devices

  1. Explain a Switch’s Local Forwarding Role
  2. Choose Managed Versus Unmanaged Switching
  3. Identify the Router Between IP Networks
  4. Explain the Access Point’s Bridge to the Wired Network
  5. Identify the Firewall’s Traffic-Control Role
  6. Understand NICs and MAC Address Identity
  7. Unpack the Roles Inside a Combined Gateway
  8. Trace the Forwarding Path One Role at a Time
  9. Scenario-Based Quiz

WAN handoffs PoE and physical infrastructure

  1. Recognize a Cable Modem’s Provider-Facing Role
  2. Recognize DSL Over the Provider’s Copper Pair
  3. Recognize the Optical Network Terminal and Fiber Safety
  4. Identify the WAN Handoff and Support Boundary
  5. Use a PoE Injector Between Data Source and Powered Device
  6. Evaluate a PoE Switch’s per-Port and Total Budget
  7. Compare IEEE PoE Standards and Delivered Power
  8. Use a Patch Panel as Passive Physical Organization
  9. Scenario-Based Quiz
5Addressing DNS DHCP and SOHO Setup

Explore IPv4 client configuration, IPv6 and automatic addressing, DNS and DHCP service settings, and SOHO VLAN and VPN choices.

Explore The Lesson’s 4 Sections

IPv4 client configuration

  1. Read IPv4 Addresses as Structured Values
  2. Private and Public IPv4 Have Different Routing Roles
  3. NAT Changes Addressing but Does Not Replace Routing or Policy
  4. Subnet Masks Determine the Local Network Boundary
  5. The Default Gateway Handles Destinations Beyond Local Routes
  6. Static and Dynamic Settings Differ in Management Responsibility
  7. Duplicate Addresses Create Competing Ownership
  8. Verify the Effective Client Configuration
  9. Scenario-Based Quiz

IPv6 and automatic addressing

  1. Read IPv6 Notation and Prefixes Accurately
  2. IPv6 Address Scope Determines Where It Can Be Used
  3. IPv6 Discovers Neighbors and Routers Through Control Messages
  4. SLAAC Forms Addresses from Advertised Information
  5. DHCPv6 and Router Advertisements Have Complementary Roles
  6. APIPA Provides Limited Local IPv4 Connectivity
  7. Dual Stack Means Two Paths to Verify
  8. Multiple IPv6 Addresses Can Be Normal
  9. Scenario-Based Quiz

DNS and DHCP service settings

  1. A and AAAA Records Map Names to Address Families
  2. CNAME Creates a DNS Alias Rather Than a Web Redirect
  3. MX Records Identify Inbound Mail Exchangers
  4. TXT Records Carry Service-Interpreted Data Including SPF
  5. DKIM Verifies a Domain Signature Over Selected Message Content
  6. DMARC Connects Authentication to the Visible Author Domain
  7. DHCP Scopes and Leases Manage a Finite Pool
  8. Reservations and Exclusions Solve Different Allocation Problems
  9. Scenario-Based Quiz

SOHO VLAN and VPN decisions

  1. Plan the SOHO Network Before Entering Settings
  2. Configure Client Access from the Intended Service Source
  3. VLANs Separate Logical Local Networks
  4. Routing and Policy Control Communication Between VLANs
  5. VPNs Create a Controlled Logical Path Over Another Network
  6. Remote-Access and Site Connections Have Different Scope
  7. Address Overlap and DNS Can Explain Connected VPN Failures
  8. Verify the SOHO Design as a Set of Permitted Paths
  9. Scenario-Based Quiz
6Internet Connections Cabling and Tools

Explore Connection services and network scope, Copper media and terminations, Fiber connector and environmental choices, and Network tool selection and interpretation.

Explore The Lesson’s 4 Sections

Connection services and network scope

  1. Cable Internet Uses a Provider-Managed Shared Access System
  2. DSL Depends on the Copper Telephone Access Path
  3. Fiber Internet Terminates at an Optical Handoff
  4. Satellite Access Trades Reach for Path Constraints
  5. Cellular Access Depends on Radio Service and Subscription
  6. WISP Service Uses a Fixed Wireless Access Path
  7. LAN WLAN and PAN Describe Different Local Scopes
  8. WAN MAN and SAN Classify Different Reach and Purpose
  9. Scenario-Based Quiz

Copper media and terminations

  1. Unshielded Twisted Pair Relies on Balanced Pairs
  2. Shielded Cable Requires a Complete Compatible Installation
  3. Cable Category Sets a Channel Performance Requirement
  4. T568A and T568B Preserve Defined Pair Assignments
  5. RJ45 and RJ11 Labels Do Not Make Services Interchangeable
  6. Coaxial Cable and F-Type Connectors Form a Distinct Path
  7. Plenum Rating Addresses Fire and Smoke Requirements
  8. Direct-Burial Cable Must Suit the Outdoor Pathway
  9. Scenario-Based Quiz

Fiber connector and environmental choices

  1. Single-Mode Fiber Supports a Different Optical Design
  2. Multimode Fiber Has Mode and Bandwidth Limits
  3. ST Connectors Use a Bayonet Retention Mechanism
  4. SC Connectors Use Push-Pull Retention and Defined Polish
  5. LC Connectors Support Compact High-Density Connections
  6. Fiber Inspection and Cleaning Need Optical-Safe Tools
  7. Choose Copper or Fiber from the Complete Route
  8. End-to-End Optical Compatibility Is More Than a Patch Cord
  9. Scenario-Based Quiz

Network tool selection and interpretation

  1. A Crimper Terminates the Correct Plug and Cable Combination
  2. A Cable Stripper Removes Jacket Without Damaging Conductors
  3. Punchdown Tools Seat Conductors in IDC Hardware
  4. Cable Testers Differ in What They Can Prove
  5. Toner and Probe Locate a Cable Rather Than Certify It
  6. Wi-Fi Analyzers Reveal Wireless Conditions with Limits
  7. Loopback Plugs Test a Bounded Local Interface Path
  8. Network Taps Provide Observation at a Specific Link
  9. Scenario-Based Quiz
03Core 1 · Hardware5 Lessons
7Displays Peripheral Cables and Video Diagnosis

Explore Panel technologies and display attributes, Video peripheral and storage connections, Display and projector fault isolation, and Accessibility quality and verified recovery.

Explore The Lesson’s 4 Sections

Panel technologies and display attributes

  1. LCD Panels Modulate a Separate Light Source
  2. IPS and VA Make Different LCD Tradeoffs
  3. OLED Pixels Emit Their Own Light
  4. Mini-LED Is a Backlight Technology for LCD Designs
  5. Touch Digitizers Add an Independent Input Function
  6. Legacy CCFL Backlights Use an Inverter
  7. Resolution and Pixel Density Describe Different Properties
  8. Refresh Rate and Color Gamut Need Separate Evaluation
  9. Scenario-Based Quiz

Video peripheral and storage connections

  1. HDMI Carries Supported Digital Video and Audio
  2. DisplayPort Capability Depends on the Full Connection
  3. DVI VGA and Adapters Require Signal-Type Reasoning
  4. USB 2.0 and USB 3.0 Describe Data Capability
  5. USB-C and Thunderbolt Are Not Interchangeable Labels
  6. MicroUSB MiniUSB and Lightning Require the Right Cable Function
  7. Serial and DB9 Connections Need Electrical and Framing Agreement
  8. SATA eSATA and Peripheral Power Have Separate Roles
  9. Scenario-Based Quiz

Display and projector fault isolation

  1. Confirm Power and the Selected Input Source
  2. Isolate the Physical Video Path with Controlled Substitutions
  3. Projector Lamp Faults Require Model-Specific Safe Service
  4. Dim Images Require Settings and Illumination Evidence
  5. Flashing Screens Need Mode and Path Comparisons
  6. Fuzzy Images Separate Focus Scaling and Signal Quality
  7. Incorrect Color Requires Source Path and Profile Evidence
  8. Intermittent Projector Shutdown Can Be Protective Behavior
  9. Scenario-Based Quiz

Accessibility quality and verified recovery

  1. Sizing Problems Need Resolution Scaling and Overscan Checks
  2. Distorted Images Separate Geometry from Signal Defects
  3. Dead and Stuck Pixels Are Localized Panel Observations
  4. Burn-in and Temporary Retention Require Careful Distinction
  5. Display Audio Depends on Routing and Supported Endpoints
  6. Multi-Display Setup Must Fit the User’s Workspace
  7. Use Independent Image Evidence to Locate the Fault
  8. Verify Visual Recovery Against the Original Requirement
  9. Scenario-Based Quiz
8Memory Storage and RAID

Explore RAM compatibility and channels, Drive media form factors and interfaces, RAID availability and capacity, and Storage selection and safe installation.

Explore The Lesson’s 4 Sections

RAM compatibility and channels

  1. Working Memory Versus Persistent Storage
  2. DIMM SODIMM and Serviceability
  3. DDR Generations Are Compatibility Boundaries
  4. Transfer Rate Timing and Supported Profiles
  5. ECC Needs End-to-End Platform Support
  6. Channels Are Data Paths Not Slot Counts
  7. Capacity Limits Ranks and Module Organization
  8. Validate a Memory Change Without Guessing
  9. Scenario-Based Quiz

Drive media form factors and interfaces

  1. Magnetic Disks and Mechanical Access Time
  2. Drive Dimensions and Bay Compatibility
  3. NAND Flash Behavior and Endurance Boundaries
  4. SATA SAS PCIe and NVMe Describe Different Layers
  5. M.2 Is a Form Factor with Multiple Possibilities
  6. mSATA and Legacy Compact Storage
  7. Flash Drives and Memory Cards
  8. Optical Media and Drive Capability
  9. Scenario-Based Quiz

RAID availability and capacity

  1. State RAID Calculation Assumptions First
  2. RAID 0 Trades Redundancy for Capacity and Parallelism
  3. RAID 1 Preserves a Complete Mirrored Copy
  4. RAID 5 Uses One Drive-Equivalent of Parity
  5. RAID 6 Adds a Second Independent Parity Contribution
  6. RAID 10 Failure Tolerance Depends on Mirror Pairs
  7. Degraded Operation Hot Spares and Rebuild Risk
  8. Redundancy Backup and Recovery Are Separate Controls
  9. Scenario-Based Quiz

Storage selection and safe installation

  1. Choose Storage from the Workload Outward
  2. Verify Data and Power Connections Independently
  3. Mounting Protects Connectors and Cooling
  4. Migration Must Preserve a Recovery Path
  5. Controller Recognition Is Different from Boot Support
  6. Physical Devices Partitions and Volumes Are Different
  7. Storage Thermals and Sustained Behavior
  8. Acceptance Tests Turn a Purchase into a Verified Upgrade
  9. Scenario-Based Quiz
9Motherboards Processors and Firmware

Explore Board layout form factors and connectors, Processor compatibility and architectures, UEFI boot security and management, and Expansion cooling and platform validation.

Explore The Lesson’s 4 Sections

Board layout form factors and connectors

  1. ATX Form Factor Coordinates the Board and Enclosure
  2. microATX Balances a Smaller Board with Expansion Needs
  3. Mini-ITX Demands Whole-System Space Planning
  4. PCI and PCIe Are Different Expansion Architectures
  5. Motherboard Power Connectors Have Distinct Assignments
  6. SATA and eSATA Ports Connect Supported Storage Paths
  7. Headers Connect Case Controls and Internal Peripherals
  8. M.2 Sockets Require Function and Length Matching
  9. Scenario-Based Quiz

Processor compatibility and architectures

  1. CPU Socket Compatibility Includes the Exact Supported Model
  2. Chipset Firmware and Power Delivery Complete the CPU Decision
  3. Multisocket Systems Have Population and Resource Rules
  4. x86 and x64 Labels Describe Execution Compatibility
  5. ARM Requires Its Own Software and Peripheral Checks
  6. Cores Threads and Clock Rates Are Different Resources
  7. Graphics Output Depends on the Complete CPU and Board Path
  8. Virtualization Support Is a Platform Capability and Setting
  9. Scenario-Based Quiz

UEFI boot security and management

  1. Firmware Initializes Hardware Before the Operating System
  2. Boot Options Select a Supported Startup Path
  3. USB Permissions Can Differ Before and After Boot
  4. TPM Supports Platform Trust and Protected Key Use
  5. HSMs Protect Cryptographic Operations for a Defined Service
  6. Secure Boot Validates the Configured Boot Trust Path
  7. Boot Passwords and Firmware Administrator Passwords Differ
  8. Firmware Fan and Temperature Settings Need Model Context
  9. Scenario-Based Quiz

Expansion cooling and platform validation

  1. Sound Cards Add Audio Paths with Driver and Connector Needs
  2. Video Cards Require Slot Power Cooling and Output Compatibility
  3. Capture Cards Receive Media Rather Than Create a Display Output
  4. Network Interface Cards Need Medium and Platform Support
  5. Fans Move Heat Only Through a Planned Airflow Path
  6. Heat Sinks Transfer Heat Through Contact and Surface Area
  7. Thermal Paste and Pads Are Not Arbitrary Substitutes
  8. Liquid Cooling Still Needs Airflow and Complete Validation
  9. Scenario-Based Quiz
10Power Cooling and Reliable PC Assembly

Explore Power compatibility and capacity, Cooling installation and monitoring, Safe assembly and initial validation, and Power and thermal evidence choices.

Explore The Lesson’s 4 Sections

Power compatibility and capacity

  1. AC Input Must Match the Local Supply and PSU Rating
  2. DC Rails Supply Different Parts of the Platform
  3. The 20+4 Main Connector Is Not a CPU Power Substitute
  4. Modular Describes Detachable Cables Rather Than Universal Wiring
  5. Wattage Planning Includes Load Peaks and Connectors
  6. Efficiency Relates Wall Input to Useful DC Output
  7. Redundant Supplies Require Surviving Capacity and Independent Paths
  8. Power-Supply Fit and Service Boundary Complete Selection
  9. Scenario-Based Quiz

Cooling installation and monitoring

  1. Trace the Heat Path Before Selecting a Cooler
  2. Mount the CPU Cooler with the Specified Hardware
  3. Plan Airflow and Fan Control as a System
  4. Use Paste and Pads for Their Intended Interfaces
  5. Liquid Cooling Adds Circulation and Leak Boundaries
  6. Interpret Temperature and Fan Telemetry in Context
  7. Recognize Throttling and Thermal Shutdown as Protection
  8. Localize Unusual Noise Without Touching Moving Parts
  9. Scenario-Based Quiz

Safe assembly and initial validation

  1. Prepare a Safe and Reversible Assembly Plan
  2. Use Only the Standoffs Required by the Board
  3. Install a Supported Processor Without Forcing the Socket
  4. Use Memory Isolation to Investigate a Failed POST
  5. Connect Front-Panel Headers from the Board Diagram
  6. Classify the First Startup Stage Before Changing Parts
  7. Establish a Firmware Baseline After Assembly
  8. Separate Sluggish Performance from Its Competing Causes
  9. Scenario-Based Quiz

Power and thermal evidence decisions

  1. Investigate No Power from the Outside Inward
  2. Use Blank-Screen Evidence to Choose the Correct Path
  3. Interpret POST Beeps with the Exact Model Reference
  4. Distinguish Random Shutdown from an Orderly Restart
  5. Separate System Crash Screens from Application Crashes
  6. Stop for Burning Smells or Visibly Swollen Capacitors
  7. Diagnose Incorrect Time Before Replacing the RTC Battery
  8. Verify the Repaired System Against the Original Complaint
  9. Scenario-Based Quiz
11Printer Deployment and Maintenance

Explore Deployment drivers and connectivity, Sharing output settings and secure printing, Scanning workflows and service accounts, and Printer technologies and maintenance.

Explore The Lesson’s 4 Sections

Deployment drivers and connectivity

  1. Prepare the Location and Remove Shipping Restraints
  2. Translate User Tasks into Device Capabilities
  3. Choose an Authentic Driver for the OS and Exact Device
  4. Match PCL or PostScript to the Printer Interpreter
  5. Treat Printer Firmware as a Controlled Device Update
  6. Understand the Local USB Printing Path
  7. Give an Ethernet Printer a Stable Managed Identity
  8. Deploy Wireless Printing with the Intended Network Path
  9. Scenario-Based Quiz

Sharing output settings and secure printing

  1. Choose Between a Workstation Share and a Print Server
  2. Keep Shared Queues Aligned with the Physical Device
  3. Configure Duplex Around Media and Binding Requirements
  4. Coordinate Orientation Scaling and the Source Document
  5. Declare Tray Media Accurately at Every Layer
  6. Choose Quality Settings for the Output’s Purpose
  7. Separate Authentication Badging and Authorization
  8. Verify Held-Job Release and Meaningful Audit Records
  9. Scenario-Based Quiz

Scanning workflows and service accounts

  1. Use the ADF for Supported Multipage Originals
  2. Choose the Flatbed for Originals That Should Not Travel
  3. Set Scan Resolution Format and Legibility for the Task
  4. Separate Scan-to-Email Capture from Mail Submission
  5. Map SMB Scan Delivery to Path Identity and Permissions
  6. Verify Cloud Scan Destinations and Account Boundaries
  7. Limit Service Identities to the Scan Workflow
  8. Verify Scan Capture Delivery and Retrieval End to End
  9. Scenario-Based Quiz

Printer technologies and maintenance

  1. Replace Laser Toner Without Confusing It with the Drum
  2. Apply Laser Maintenance Kits Calibration and Cleaning Correctly
  3. Distinguish Ink Cartridges Printheads and the Ink Path
  4. Use Nozzle Checks Before Cleaning and Alignment
  5. Maintain Inkjet Rollers Feeders and Safe Jam Access
  6. Load the Right Paper for Direct Thermal Printing
  7. Clean Thermal Heads and Remove Debris Without Damage
  8. Service Impact Ribbons Heads and Multipart Paper
  9. Scenario-Based Quiz
04Core 1 · Virtualization And Cloud Computing2 Lessons
12Virtual Machines Containers and Virtual Desktops

Explore Hypervisors and virtual-machine models, Compute memory storage and network requirements, Sandbox development and legacy workloads, and Virtual desktops containers and isolation.

Explore The Lesson’s 4 Sections

Hypervisors and virtual-machine models

  1. Host Guest and Hypervisor Responsibilities
  2. Type 1 Hypervisors Run at the Hardware Control Layer
  3. Type 2 Hypervisors Support Hosted Desktop Workflows
  4. A Virtual Machine Is More Than an Isolated Application
  5. VM Power States Change Resource Use and Data Risk
  6. Virtual Hardware Requires Guest-Compatible Drivers
  7. Snapshots Are Dependent Rollback Points
  8. Choose a Virtualization Model from Requirements
  9. Scenario-Based Quiz

Compute memory storage and network requirements

  1. Hardware Virtualization Support Must Be Verified
  2. Virtual CPU Allocation Is a Scheduling Decision
  3. Guest Memory Must Leave Room for the Host
  4. Virtual Disks Have Formats Controllers and Dependencies
  5. Thin Provisioning Separates Promised Capacity from Consumed Space
  6. Virtual Network Modes Define Different Reachability
  7. Guest Addressing and Network Services Remain Real Dependencies
  8. Validate the Whole Resource Budget Under Concurrency
  9. Scenario-Based Quiz

Sandbox development and legacy workloads

  1. Build a Sandbox from an Explicit Boundary
  2. Integration Features Can Cross an Isolation Boundary
  3. Development Tests Need Repeatable Baselines
  4. Templates Clones and Unique Identities
  5. Legacy Guests Preserve Compatibility but Not Support Status
  6. Application Virtualization Changes Packaging or Delivery
  7. Cross-Platform Operation Has OS and Architecture Limits
  8. Guest Tools Improve Function but Need Controlled Installation
  9. Scenario-Based Quiz

Virtual desktops containers and isolation

  1. VDI Delivers a Desktop from Another Execution Environment
  2. Remote Desktop Quality Includes Latency and Peripherals
  3. Desktop Assignment and Persistence Are Separate Properties
  4. Separate Endpoint Session and Service Faults
  5. Typical Containers Share an Operating-System Kernel
  6. Images Containers and Persistent Data Have Different Lifecycles
  7. Container Limits and Privileges Shape the Isolation Boundary
  8. Match the Isolation and Delivery Model to the Job
  9. Scenario-Based Quiz
13Cloud Services and Client Workflows

Explore Cloud deployment models, Service models and responsibility, Resource behavior cost and availability, and Synchronization and support evidence.

Explore The Lesson’s 4 Sections

Cloud deployment models

  1. Recognize Cloud Delivery Beyond a Remote Computer
  2. Define a Private Cloud by Its Exclusive Organizational Use
  3. Define Public Cloud Without Assuming Public Data Access
  4. Identify Hybrid Cloud from Connected Distinct Deployments
  5. Recognize Community Cloud by Shared Organizational Concerns
  6. Keep Deployment Audience Separate from Physical Resource Choice
  7. Map Integration and Data Movement Before Choosing a Model
  8. Select a Deployment Model from Explicit Requirements
  9. Scenario-Based Quiz

Service models and responsibility

  1. Identify Infrastructure as a Service and Guest Responsibilities
  2. Identify Platform as a Service and Application Ownership
  3. Identify Software as a Service and Tenant Duties
  4. Build a Responsibility Matrix for the Actual Service
  5. Distinguish Tenant Identity from Resource Permission
  6. Separate Endpoint Network and Provider Dependencies
  7. Distinguish Service Entitlement from Usage Capacity
  8. Evaluate Service Change and Portability Requirements
  9. Scenario-Based Quiz

Resource behavior cost and availability

  1. Explain Pooled and Shared Resources
  2. Explain Dedicated Resources Without Promising Total Isolation
  3. Explain Multitenancy and Logical Separation
  4. Read Metered Utilization in the Billed Unit
  5. Interpret Ingress from the Named Service’s Perspective
  6. Interpret Egress and Cross-Boundary Transfer Costs
  7. Distinguish Elasticity from Unlimited Automatic Capacity
  8. Evaluate Availability Across the Whole User Workflow
  9. Scenario-Based Quiz

Synchronization and support evidence

  1. Read Synchronization as a Sequence of States
  2. Check Account Folder Selection and Access Scope
  3. Handle Conflicting Edits Without Discarding Either Version
  4. Distinguish Online-Only Placeholders from Offline Content
  5. Separate Synchronization Version History and Independent Backup
  6. Explain Metered Networks Quotas and Background Synchronization
  7. Gather Cloud Support Evidence Without Exposing Content
  8. Verify a Complete Cloud Workflow and Its Limits
  9. Scenario-Based Quiz
05Core 1 · Hardware And Network Troubleshooting3 Lessons
14PC Hardware Storage and RAID Diagnosis

Explore No-power POST and startup evidence, Compute stability and performance faults, Drive health data integrity and boot faults, and RAID recovery and repair verification.

Explore The Lesson’s 4 Sections

No-power POST and startup evidence

  1. Classify the Observed Failure Before Opening the Case
  2. Check the External Power Path Before Internal Replacement
  3. Interpret Standby Power and Start-Control Evidence
  4. Interpret POST Beeps and Diagnostic Patterns by Model
  5. Separate a Blank Display from Failed System Initialization
  6. Treat Proprietary Crash Screens as Evidence Not Verdicts
  7. Investigate Inaccurate Date and Time with State Comparison
  8. Stop Safely for Burning Smell or Swollen Capacitors
  9. Scenario-Based Quiz

Compute stability and performance faults

  1. Measure Sluggish Performance by the Constrained Resource
  2. Isolate Memory Faults with Compatible Controlled Tests
  3. Connect Overheating Evidence to Cooling and Workload
  4. Investigate Random Shutdowns Without Guessing the PSU
  5. Separate Application Crashes from Broader Hardware Instability
  6. Localize Unusual Mechanical Noise Safely
  7. Check Processor and Motherboard Compatibility After a Change
  8. Verify Hardware Repair Under the Original Conditions
  9. Scenario-Based Quiz

Drive health data integrity and boot faults

  1. Interpret Drive LEDs with the Correct Enclosure Guide
  2. Interpret S.M.A.R.T. Warnings Without False Reassurance
  3. Protect Data When a Mechanical Drive Clicks or Grinds
  4. Separate Missing Boot Media from Lost Drive Detection
  5. Investigate a Drive Missing from the Operating-System View
  6. Preserve Evidence When Data Is Lost or Corrupted
  7. Interpret Extended Read and Write Times in Context
  8. Distinguish IOPS from Throughput and Response Time
  9. Scenario-Based Quiz

RAID recovery and repair verification

  1. Inventory the Array Before Taking Recovery Action
  2. Recognize RAID 0 Failure Without Inventing Redundancy
  3. Diagnose a Two-Member RAID 1 Mirror
  4. Compare RAID 5 and RAID 6 Parity Limits
  5. Evaluate RAID 10 Failures by Mirror Pair
  6. Investigate an Array Missing After Controller or Configuration Changes
  7. Respond to Alarms and Monitor a Supported Rebuild
  8. Close Storage Recovery with Verified Data and Independent Protection
  9. Scenario-Based Quiz
15Mobile Device and Printer Diagnosis

Explore Mobile battery charging and physical faults, Mobile input connectivity and application symptoms, Printer output paper-path and finishing faults, and Queue driver and connection recovery.

Explore The Lesson’s 4 Sections

Mobile battery charging and physical faults

  1. Separate Battery Aging from an Unusually Demanding Workload
  2. Treat Swelling as a Safety Escalation
  3. Trace the Wired Charging Path
  4. Diagnose Wireless Charging Alignment and Compatibility
  5. Preserve Safety and Evidence After Liquid Exposure
  6. Distinguish Expected Warmth from Overheating
  7. Separate Broken Glass Image Failure and Touch Failure
  8. Recognize Physical Port Damage Without Creating More
  9. Scenario-Based Quiz

Mobile input connectivity and application symptoms

  1. Isolate Digitizer Failure from Image and Application Faults
  2. Distinguish Cursor Drift from a Calibration Offset
  3. Troubleshoot the Exact Stylus Technology
  4. Locate the Boundary of a Mobile Wi-Fi Complaint
  5. Separate Cellular Service from Bluetooth Accessory Problems
  6. Recognize Suspected Malware Without Unsafe Experimentation
  7. Investigate Installation Failures Before Changing Policy
  8. Measure Degraded Performance at the Right Layer
  9. Scenario-Based Quiz

Printer output paper-path and finishing faults

  1. Use Print and Scan Controls to Locate Page Lines
  2. Diagnose Faded Output According to Printing Technology
  3. Interpret Speckling and Repeated Echo Images
  4. Clear a Paper Jam Without Creating a Second Fault
  5. Separate No Pickup from an Unavailable Paper Source
  6. Investigate Multipage Misfeeds at the Separation Stage
  7. Respond to Grinding with Mechanical Evidence
  8. Separate Staple and Hole-Punch Finishing Faults
  9. Scenario-Based Quiz

Queue driver and connection recovery

  1. Read a Queue Before Adding More Jobs
  2. Recover a Frozen Queue with the Smallest Justified Disruption
  3. Use Garbled Output to Test Rendering and Printer Language
  4. Resolve Page Orientation Across Document Driver and Duplex Settings
  5. Distinguish an Unrecognized Tray from a Media Mismatch
  6. Separate a Wired Connection Fault from Printer Readiness
  7. Test Wireless and Shared-Printer Dependencies Separately
  8. Verify the Complete Output Workflow After Recovery
  9. Scenario-Based Quiz
16Wired Wireless and Internet Diagnosis

Explore Bound the failure and gather client evidence, Local addressing link and name-resolution faults, Wireless instability authentication and interference, and Latency quality of service and verified closure.

Explore The Lesson’s 4 Sections

Bound the failure and gather client evidence

  1. Translate the Reported Symptom into an Observable Failure
  2. Separate Link Address Name and Application States
  3. Build a Controlled Comparison Matrix
  4. Capture Intermittent Failures with a Shared Timeline
  5. Read Client Inventory Without Exposing Secrets
  6. Use Bounded Reachability Probes and Understand Their Limits
  7. Measure Speed Against a Meaningful Baseline
  8. Test One Hypothesis Within an Authorized Change Boundary
  9. Scenario-Based Quiz

Local addressing link and name-resolution faults

  1. Inspect the Wired Link Before Changing Logical Settings
  2. Diagnose Port Flapping from State Changes and Correlation
  3. Interpret Negotiated Speed Duplex and Error Counters
  4. Interpret DHCP and APIPA Evidence Without Guessing an Address
  5. Check Address Prefix Gateway and Duplicate-Address Consistency
  6. Isolate Name Resolution from Address and Service Reachability
  7. Interpret Limited Connectivity and Access Restrictions
  8. Separate Local Access from Intermittent Internet Service
  9. Scenario-Based Quiz

Wireless instability authentication and interference

  1. Identify the Wireless Connection Stage That Fails
  2. Evaluate Signal Quality Range and Physical Obstacles
  3. Recognize Airtime Contention and Channel Overlap
  4. Investigate External Interference and Regulatory Channel Changes
  5. Match Band and Client Capabilities to the Supported Network
  6. Separate Roaming Interruptions from Stationary Instability
  7. Distinguish Personal-Network Authentication from Radio Failure
  8. Locate Enterprise Authentication Failures by Stage
  9. Scenario-Based Quiz

Latency quality of service and verified closure

  1. Measure Latency Without Confusing It with Transfer Rate
  2. Explain Jitter as Variation in Packet Delay
  3. Interpret Packet Loss and Retransmission Evidence
  4. Separate VoIP Network Impairment from Endpoint Audio Faults
  5. Recognize Congestion and the Limits of Quality of Service
  6. Compare Access-Path Performance with a Controlled Workload
  7. Escalate with Evidence That Another Owner Can Act On
  8. Verify Recovery Under the Original Failure Conditions
  9. Scenario-Based Quiz
06Core 2 · Operating Systems7 Lessons
17Operating Systems Filesystems and Windows Editions

Explore Desktop and mobile operating-system roles, Filesystems and interoperability, Windows editions and management features, and Compatibility support life cycles and upgrade choices.

Explore The Lesson’s 4 Sections

Desktop and mobile operating-system roles

  1. Windows as a Managed Workstation Platform
  2. Linux Distributions and Supported Desktop Choices
  3. macOS and the Apple Hardware Support Boundary
  4. ChromeOS and Browser-Centered Client Workflows
  5. iOS Application and Device Roles
  6. iPadOS and Tablet-Specific Workflow Compatibility
  7. Android Platform Variation and Update Responsibility
  8. Compare Platforms Through Files Identities and Peripherals
  9. Scenario-Based Quiz

Filesystems and interoperability

  1. NTFS Permissions Journaling and Windows Use
  2. ReFS Resilience and Feature Boundaries
  3. FAT32 Compatibility and the Single-File Limit
  4. exFAT for Large Cross-Platform Removable Files
  5. ext4 and Linux Filesystem Semantics
  6. XFS and Capacity-Planning Consequences
  7. APFS Containers Snapshots and Case Choices
  8. Choose a Filesystem by the Complete Transfer Contract
  9. Scenario-Based Quiz

Windows editions and management features

  1. Home Edition and Personal-Device Requirements
  2. Pro Edition and Business Management Features
  3. Pro for Workstations as a Workload-Specific Edition
  4. Enterprise Edition and Organizational Deployment
  5. N Editions and Missing Media Components
  6. Local Group Policy and Centralized Management Boundaries
  7. Remote Desktop Client Versus Host Capability
  8. Device Encryption and Full BitLocker Management
  9. Scenario-Based Quiz

Compatibility support life cycles and upgrade decisions

  1. Read Support Lifecycles as Operational Constraints
  2. Place Windows 10 in Its Current Legacy Context
  3. Separate Application Driver and Architecture Compatibility
  4. Windows 11 TPM UEFI and Secure Boot Eligibility
  5. Interpret RAM Limits Across Editions and Architectures
  6. Recognize Interface Changes Without Confusing Editions
  7. Compare in-Place Upgrade with Clean Installation
  8. Build a Defensible Edition and Upgrade Recommendation
  9. Scenario-Based Quiz
18OS Installation Upgrade and Recovery

Explore Preparation compatibility and backup, Boot methods partitioning and formatting, Installation and deployment approaches, and Upgrade validation recovery and rollback.

Explore The Lesson’s 4 Sections

Preparation compatibility and backup

  1. Define the Target State and Maintenance Window
  2. Check Hardware Eligibility Before Choosing Media
  3. Inventory Application and Backward-Compatibility Needs
  4. Prepare a Supported Driver Inventory
  5. Back up Files and User Preferences Deliberately
  6. Prove Recovery Access Before Making Changes
  7. Verify Installation Media Edition and Entitlement
  8. Prepare Power Connectivity and Deployment Prerequisites
  9. Scenario-Based Quiz

Boot methods partitioning and formatting

  1. Match the Boot Mode to the Installation Design
  2. Use USB and Flash-Based Boot Media Correctly
  3. Understand Network Boot Before Remote Installation
  4. Use Internet-Based Recovery Within Platform Limits
  5. Assess External and Hot-Swappable Boot Devices
  6. Boot from an Internal Recovery Partition Safely
  7. Distinguish GPT from MBR Partitioning
  8. Select a Filesystem and Confirm Destructive Formatting
  9. Scenario-Based Quiz

Installation and deployment approaches

  1. Perform a Clean Installation Without Ambiguous Preservation
  2. Use an in-Place Upgrade Through the Supported Entry Point
  3. Deploy an Image Without Cloning Hidden Problems
  4. Separate Remote Network Delivery from Deployment Control
  5. Understand Zero-Touch Provisioning and Its Prerequisites
  6. Choose a Repair Installation Without Promising Too Much
  7. Plan Multiboot as Separate Supported Environments
  8. Load Third-Party Drivers at the Correct Deployment Stage
  9. Scenario-Based Quiz

Upgrade validation recovery and rollback

  1. Validate First Boot and Device Functionality
  2. Restore Data and Preferences into the Right Context
  3. Verify Activation Identity and Management After Installation
  4. Apply Feature Updates Within the Product Lifecycle
  5. Retain a Realistic Rollback Path
  6. Use Recovery Partitions and Factory Images with Current Expectations
  7. Diagnose Setup Failures Without Erasing the Evidence
  8. Accept the Installation and Hand Over a Maintainable System
  9. Scenario-Based Quiz
19Windows Management Tools and Settings

Explore Process service and performance inspection, Management consoles storage and devices, Desktop account privacy and accessibility settings, and Power update application and maintenance tools.

Explore The Lesson’s 4 Sections

Process service and performance inspection

  1. Interpret Processes Before Ending a Task
  2. Read Performance Graphs Over the Relevant Interval
  3. Manage Startup Applications Without Removing Needed Controls
  4. Inspect User Sessions Before Signing Anyone Out
  5. Relate Services to Their Processes and Dependencies
  6. Correlate Process and Resource Activity in Resource Monitor
  7. Capture Meaningful Counters with Performance Monitor
  8. Use System Configuration for Controlled Isolation
  9. Scenario-Based Quiz

Management consoles storage and devices

  1. Use MMC and Event Viewer to Preserve Relevant Evidence
  2. Inspect Disks Volumes and Mount Points in Disk Management
  3. Interpret Device Manager Status and Driver History
  4. Read Task Scheduler Triggers Actions and Context
  5. Inspect Certificate Stores Without Changing Trust Casually
  6. Manage Local Users and Groups in the Correct Authority
  7. Interpret Policy Settings Through Gpedit and Applicability
  8. Build a Reliable Inventory with System Information
  9. Scenario-Based Quiz

Desktop account privacy and accessibility settings

  1. Navigate System and Personalization Settings by Function
  2. Separate Sign-in Accounts from Application Accounts
  3. Apply Privacy Permissions to the Correct Resource and App
  4. Preserve Accessibility as Part of the Required Configuration
  5. Separate Clock Time Time Zone Language and Region
  6. Distinguish File Explorer Visibility from Search Indexing
  7. Configure Sound Devices and Gaming-Related Capture Deliberately
  8. Use Devices and Printers for the Intended Peripheral Workflow
  9. Scenario-Based Quiz

Power update application and maintenance tools

  1. Choose Sleep Hibernate or Shutdown from the Actual Need
  2. Set Power Plans Lid Actions Fast Startup and USB Suspension
  3. Inspect Update State Before Restarting or Deferring
  4. Use Apps and Programs and Features for Supported Changes
  5. Understand Internet Options and Mail Applet Scope
  6. Connect Network and Sharing Center with Firewall Policy
  7. Separate Disk Cleanup from Media-Aware Drive Optimization
  8. Inspect the Registry Without Treating It as a Repair Shortcut
  9. Scenario-Based Quiz
20Windows Commands and Client Networking

Explore Command context navigation and file operations, Network discovery and diagnostic commands, Disk system account and policy commands, and Windows network sharing proxy VPN and firewall configuration.

Explore The Lesson’s 4 Sections

Command context navigation and file operations

  1. Choose the Shell and Security Context
  2. Read Command Help Before Adding Switches
  3. Navigate Directories and Drive Letters with Cd
  4. Inspect Names Attributes and Scope with Dir
  5. Create a Deliberate Folder Structure with Md
  6. Remove Only Verified Disposable Directories with Rmdir
  7. Copy a Bounded Dataset with Robocopy
  8. Identify the Machine Account and Windows Build
  9. Scenario-Based Quiz

Network discovery and diagnostic commands

  1. Read the Correct Adapter with Ipconfig
  2. Distinguish DHCP Evidence from an APIPA Assumption
  3. Use Ping as a Bounded Reachability Test
  4. Ask DNS a Precise Question with Nslookup
  5. Interpret Connections and Listeners with Netstat
  6. Trace a Route Without Overreading Missing Hops
  7. Use Pathping to Assess Persistent Loss Evidence
  8. Inspect and Map Shared Resources with Net Use
  9. Scenario-Based Quiz

Disk system account and policy commands

  1. Separate Filesystem Inspection from Chkdsk Repair
  2. Maintain Target Focus in Diskpart
  3. Understand What Format Creates and Destroys
  4. Use Sfc for Protected Windows Files
  5. Read Local and Domain Account Scope with Net User
  6. Refresh Policy Deliberately with Gpupdate
  7. Explain Effective Policy with Gpresult
  8. Choose the Command by the Layer of Evidence
  9. Scenario-Based Quiz

Windows network sharing proxy VPN and firewall configuration

  1. Distinguish Workgroup Access from Domain Membership
  2. Navigate File Servers Mapped Drives and Shared Printers
  3. Configure IP DNS Mask and Gateway as a Consistent Set
  4. Choose Wired Wi-Fi or Cellular and Meter the Connection
  5. Configure and Verify an Approved VPN Connection
  6. Distinguish Proxy Configuration from DNS and VPN
  7. Select Public Private and Domain Firewall Profiles Correctly
  8. Create Narrow Firewall Exceptions and Prove Their Boundary
  9. Scenario-Based Quiz
21macOS Client Administration

Explore Applications folders and account restrictions, Finder desktop search and continuity, System settings privacy and security, and Backup disks troubleshooting and command access.

Explore The Lesson’s 4 Sections

Applications folders and account restrictions

  1. Distinguish a DMG from an Installed Application
  2. Understand PKG Installation Scope and Trust
  3. Recognize App Bundles and Their Actual Locations
  4. Use the App Store Within Account and Management Limits
  5. Uninstall Applications Without Deleting Unrelated Data
  6. Respect Applications and System Folder Boundaries
  7. Locate User and System Library Data Precisely
  8. Separate Apple Account Identity from Corporate Restrictions
  9. Scenario-Based Quiz

Finder desktop search and continuity

  1. Navigate with Finder and Verify the Actual Path
  2. Treat Dock Items as Launch References
  3. Interpret Spotlight Search Scope and Availability
  4. Organize Windows with Mission Control and Spaces
  5. Configure Gestures as an Input Preference
  6. Verify iCloud Drive Synchronization and Offline Content
  7. Separate Messages and FaceTime Service Dependencies
  8. Use Continuity Only When Its Specific Prerequisites Are Met
  9. Scenario-Based Quiz

Section 3

  1. Find Settings After Interface Changes
  2. Configure Displays by Role and Supported Capability
  3. Inspect Network Services and Active Configuration
  4. Configure Printers and Scanners as Distinct Workflows
  5. Grant Privacy Access Only to the Intended Application
  6. Maintain Accessibility Preferences Across Support Changes
  7. Use Keychain and Password Tools Without Exposing Secrets
  8. Verify FileVault Protection and Recovery Readiness
  9. Scenario-Based Quiz

Backup disks troubleshooting and command access

  1. Configure Time Machine Around the Recovery Requirement
  2. Distinguish Backup History Local Snapshots and Excluded Data
  3. Use Disk Utility at the Correct Storage Level
  4. Use Terminal with Explicit Shell and Path Awareness
  5. Use Force Quit Only After Protecting Recoverable Work
  6. Maintain Supported macOS and Application Updates
  7. Understand Rapid Security Response and Current Security Servicing Names
  8. Combine Built-in Malware Defenses with Approved Endpoint Protection
  9. Scenario-Based Quiz
22Linux Client Tools and Administration

Explore Files paths searching and permissions, Identity privilege and software packages, Network diagnostics and configuration files, and Storage processes boot components and support evidence.

Explore The Lesson’s 4 Sections

Files paths searching and permissions

  1. Establish Paths and Inspect Entries with Pwd and Ls
  2. Copy Content with Cp and Verify Preservation Requirements
  3. Move or Rename with Mv While Preserving the Intended Target
  4. Remove Only Verified Disposable Files with Rm
  5. Interpret Chmod Differently for Files and Directories
  6. Use Chown to Correct Identity Mapping Rather Than Broad Permissions
  7. Inspect Text with Cat and Search Content with Grep
  8. Find Objects by Path Criteria Without Changing Them
  9. Scenario-Based Quiz

Identity privilege and software packages

  1. Read Account Structure in /Etc/Passwd and Distinguish Root
  2. Understand /Etc/Shadow Without Exposing Password Verifiers
  3. Use Su with an Explicit Target and Environment
  4. Use Sudo for an Authorized Bounded Command
  5. Manage Debian-Family Packages with Apt
  6. Use Dnf with the Distribution’s Supported Transaction Model
  7. Read the Right Manual Section with Man
  8. Edit a Mock Configuration with Nano and Validate Before Deployment
  9. Scenario-Based Quiz

Network diagnostics and configuration files

  1. Inspect Interface and Address State with Ip
  2. Read Route Selection Before Changing a Gateway
  3. Use Linux Ping for a Bounded Protocol Test
  4. Use Curl to Separate Transport TLS and HTTP Results
  5. Query DNS Directly with Dig
  6. Trace a Path Without Declaring Every Silent Hop Broken
  7. Understand /Etc/Hosts and Resolver Precedence
  8. Treat /Etc/Resolv.conf as a Resolver View with an Owner
  9. Scenario-Based Quiz

Storage processes boot components and support evidence

  1. Mount Filesystems with an Explicit Source and Destination
  2. Interpret All Six Fields of /Etc/Fstab
  3. Choose Filesystem-Specific Checks Before Fsck Repair
  4. Compare Filesystem Capacity with Directory Usage Using Df and Du
  5. Read Process Snapshots and Live Activity with Ps and Top
  6. Identify the Kernel’s Role and Running Version
  7. Separate Bootloader Failure from Later Startup Failure
  8. Inspect Systemd Units and Distinguish Enabled from Active
  9. Scenario-Based Quiz
23Application Deployment and Cloud Productivity

Explore Application requirements and compatibility, Distribution deployment and business impact, Email storage sync and collaboration tools, and Identity licensing access and rollout validation.

Explore The Lesson’s 4 Sections

Application requirements and compatibility

  1. Turn Application Requirements into a Testable Specification
  2. Match Application and Dependency Architecture
  3. Evaluate CPU Capability and Workload Behavior
  4. Plan RAM for Concurrent Working Sets
  5. Choose Integrated or Dedicated Graphics Appropriately
  6. Interpret VRAM Requirements Without Substituting System RAM
  7. Budget Storage for Installation and Continuing Operation
  8. Validate Operating-System and Dependency Compatibility
  9. Scenario-Based Quiz

Distribution deployment and business impact

  1. Recognize Hardware-Token Installation Dependencies
  2. Use Physical Media and Mounted ISO Images Safely
  3. Deploy Approved Downloadable Packages with Reproducible Settings
  4. Understand Application Image Deployment Boundaries
  5. Assess Application Impact on the Device
  6. Estimate Network Impact and Stage Distribution
  7. Protect Operational Workflows During Deployment
  8. Translate Business Impact into Deployment Decisions
  9. Scenario-Based Quiz

Email storage sync and collaboration tools

  1. Configure Cloud Email Using the Supported Account Path
  2. Choose Cloud Storage Locations and Folder Scope
  3. Manage Offline Availability and Synchronization Conflicts
  4. Configure Shared Spreadsheets Without Changing Their Meaning
  5. Prepare Videoconferencing Devices and Service Access
  6. Validate Cloud Presentations and Delivery Settings
  7. Configure Word-Processing Collaboration and Document Fidelity
  8. Set up Instant Messaging Within the Intended Workspace
  9. Scenario-Based Quiz

Identity licensing access and rollout validation

  1. Identify the Authoritative Source for Synchronized Identities
  2. Understand Synchronization Scope and Identity Matching
  3. Separate Identity Synchronization from Sign-in Mechanisms
  4. Assign the Correct License and Service Plans
  5. Diagnose Direct and Group-Based License Assignment
  6. Distinguish Identity Context from Resource Permission
  7. Validate a Productivity Rollout as a Dependency Chain
  8. Handover Ownership and Maintain Entitlement Continuity
  9. Scenario-Based Quiz
07Core 2 · Security6 Lessons
24Security Controls Identity and Authentication

Explore Physical access and deterrence, Least privilege Zero Trust and access policy, Identity federation MFA and privileged access, and Wireless encryption and authentication services.

Explore The Lesson’s 4 Sections

Physical access and deterrence

  1. Match Perimeter Barriers and Lighting to the Threat
  2. Use Door Locks and Access-Control Vestibules Without Defeating Safety
  3. Distinguish Badge Readers from Fobs Smart Cards and Mobile Keys
  4. Use Equipment Locks as Delay Controls Within a Larger Plan
  5. Combine Surveillance with Trained Human Response
  6. Interpret Alarms Motion Sensors and Magnetometer Screening
  7. Compare Fingerprint Palm-Print and Retinal Recognition
  8. Recognize Facial and Voice Systems and Their Assurance Limits
  9. Scenario-Based Quiz

Least privilege Zero Trust and access policy

  1. Apply Least Privilege to Tasks Rather Than Job Titles Alone
  2. Understand Zero Trust as Resource-Centered Access Decisions
  3. Read Access Control Lists in Their Actual Platform Context
  4. Use Identity and Access Management Across the Account Lifecycle
  5. Understand What Directory Services Supply
  6. Use Mobile Device Management as a Controlled Device Lifecycle
  7. Interpret Data Loss Prevention Decisions and Limits
  8. Choose and Verify Complementary Logical Controls
  9. Scenario-Based Quiz

Identity federation MFA and privileged access

  1. Count Authentication Factors Rather Than Prompts
  2. Explain OTP and TOTP Generation and Verification
  3. Compare Email SMS and Voice Delivery Methods
  4. Distinguish Hardware Tokens and Authenticator-App Modes
  5. Explain SAML Federation and Assertion Validation
  6. Separate Single Sign-on Convenience from Universal Access
  7. Limit Privileged Access with Just-in-Time Activation
  8. Protect Enrollment Recovery and Revocation Paths
  9. Scenario-Based Quiz

Wireless encryption and authentication services

  1. Interpret WPA2 Protection and Client Connection Evidence
  2. Explain WPA3 Improvements and Compatibility Tradeoffs
  3. Keep TKIP AES and Wireless Protocol Names Distinct
  4. Validate Personal and Enterprise Wireless Profiles
  5. Place RADIUS in the Enterprise Access Decision
  6. Recognize TACACS+ as a Device-Administration AAA Role
  7. Explain Kerberos Tickets and Supporting Dependencies
  8. Evaluate Multifactor Requirements Across Wireless Access Layers
  9. Scenario-Based Quiz
25Windows Protection Permissions and Encryption

Explore Accounts sign-in and privilege boundaries, NTFS sharing inheritance and effective access, Antivirus firewall and encrypted storage, and Directory membership groups policies and redirected resources.

Explore The Lesson’s 4 Sections

Accounts sign-in and privilege boundaries

  1. Identify the Authority Behind an Account
  2. Use a Standard Account for Daily Work
  3. Separate Administrator Membership from Process Elevation
  4. Interpret UAC Prompts Before Consenting
  5. Understand Guest and Legacy Power Users
  6. Distinguish a Windows Hello PIN from a Password
  7. Evaluate Biometric Sign-in and Recovery
  8. Explain SSO Without Promising Unlimited Access
  9. Scenario-Based Quiz

NTFS sharing inheritance and effective access

  1. Read an NTFS Access Control List
  2. Distinguish Share Permissions from NTFS Permissions
  3. Calculate Group-Based Effective Access
  4. Use Deny Entries and Inheritance Carefully
  5. Separate Attributes from Authorization
  6. Choose Role Groups Instead of Scattered User Entries
  7. Verify Access Using the Intended Session
  8. Plan Ownership and Recovery Without Overgranting
  9. Scenario-Based Quiz

Antivirus firewall and encrypted storage

  1. Check Defender Protection State and Intelligence
  2. Choose Scan Scope and Handle Detections Safely
  3. Apply Firewall Profiles and Default Boundaries
  4. Scope Application and Port Firewall Rules
  5. Distinguish Device Encryption from BitLocker Management
  6. Plan BitLocker Startup and Recovery Changes
  7. Protect Removable Storage with BitLocker to Go
  8. Use EFS with Certificate-Aware Recovery
  9. Scenario-Based Quiz

Directory membership groups policies and redirected resources

  1. Prepare a Computer for Domain Membership
  2. Select Security Groups for Directory Resources
  3. Move Objects into the Intended Organizational Unit
  4. Interpret Group Policy Scope and Resulting Settings
  5. Assign and Troubleshoot Logon Scripts Safely
  6. Assign a Home Folder with Correct Ownership and Access
  7. Configure Folder Redirection Without Losing Data
  8. Validate the Combined Managed-User Experience
  9. Scenario-Based Quiz
26Threats Vulnerabilities and Malware Defenses

Explore Malware behavior and delivery routes, Endpoint prevention detection and response, Social engineering and credential attacks, and Network vulnerabilities and risk-driven controls.

Explore The Lesson’s 4 Sections

Malware behavior and delivery routes

  1. Recognize Trojan Delivery Through Deceptive Usefulness
  2. Distinguish File Infection from Boot-Sector Infection
  3. Understand Rootkit Concealment and Trust Limits
  4. Separate Spyware Collection from Keylogging
  5. Understand Ransomware Availability and Disclosure Risks
  6. Differentiate Unauthorized Mining from Legitimate Load
  7. Handle Stalkerware with Personal Safety in View
  8. Recognize Fileless Behavior Without Assuming Invisibility
  9. Scenario-Based Quiz

Endpoint prevention detection and response

  1. Evaluate Adware and Potentially Unwanted Programs
  2. Understand Antivirus and Antimalware Coverage
  3. Use EDR as Endpoint Evidence and Response
  4. Distinguish MDR Service Responsibility from Software
  5. Explain XDR Correlation Across Security Sources
  6. Use Email Gateways as One Delivery-Layer Control
  7. Understand What a Software Firewall Can Prevent
  8. Choose Recovery Tools and Reinstallation by Trust Needs
  9. Scenario-Based Quiz

Social engineering and credential attacks

  1. Compare Phishing Spear Phishing and Whaling
  2. Verify Voice and Text-Message Requests
  3. Treat QR Codes as Opaque Links Until Inspected
  4. Recognize Impersonation and Business Email Compromise
  5. Reduce Shoulder-Surfing Exposure
  6. Apply Visitor Controls Against Tailgating
  7. Prevent Information Leakage Through Discarded Material
  8. Compare Brute-Force and Dictionary Guessing
  9. Scenario-Based Quiz

Network vulnerabilities and risk-driven controls

  1. Distinguish Denial of Service from Ordinary Overload
  2. Recognize an Evil Twin Without Trusting the SSID
  3. Separate Spoofed Identity from on-Path Interception
  4. Distinguish Zero-Day Risk from Known Unpatched Exposure
  5. Compare SQL Injection with Cross-Site Scripting
  6. Recognize Insider Risk Without Unsupported Accusations
  7. Understand Supply-Chain and Pipeline Compromise
  8. Prioritize Noncompliant Unprotected and Unmanaged Systems
  9. Scenario-Based Quiz
27Malware Response and PC Security Diagnosis

Explore Recognition scoping and evidence preservation, Isolation recovery environment and remediation, PC compromise symptoms and competing causes, and Validation user guidance and recurrence prevention.

Explore The Lesson’s 4 Sections

Recognition scoping and evidence preservation

  1. Turn a Symptom Report into Observable Facts
  2. Verify the Source of a Security Alert
  3. Build a Bounded Incident Timeline
  4. Compare Malicious and Ordinary Explanations
  5. Preserve Evidence Before Destructive Cleanup
  6. Quarantine the System Without Confusing File Quarantine
  7. Recognize the Limits of Basic SOHO Cleanup
  8. Protect Backups and Distinguish Evidence Copies
  9. Scenario-Based Quiz

Isolation recovery environment and remediation

  1. Handle Windows Home Restore Points Deliberately
  2. Obtain Remediation Tools Through Trusted Routes
  3. Update Antimalware Without Undoing Containment
  4. Use Safe Mode for a Defined Diagnostic Reason
  5. Use an Offline or Preinstallation Environment
  6. Interpret Removal Quarantine and Incomplete Actions
  7. Choose a Trusted Rebuild When Confidence Is Inadequate
  8. Restore Useful Data Without Restoring Persistence
  9. Scenario-Based Quiz

PC compromise symptoms and competing causes

  1. Investigate Loss of Network Access as a Security Symptom
  2. Separate Desktop Security Alerts from Notification Abuse
  3. Investigate Altered Missing or Inaccessible Files
  4. Trace Unwanted Operating-System Notifications
  5. Diagnose Update Failures with Security Context
  6. Treat Certificate Warnings as Evidence to Investigate
  7. Localize Browser Redirection
  8. Separate Browser Performance Problems from Compromise
  9. Scenario-Based Quiz

Validation user guidance and recurrence prevention

  1. Schedule Protection with Measurable Completion
  2. Patch the Recovered Baseline Without Reintroducing Risk
  3. Re-Enable Recovery and Create a Clean Restore Point
  4. Teach the User a Practical Reporting Response
  5. Address Credential Exposure from a Trusted Device
  6. Return the Device to Service Through Explicit Criteria
  7. Validate the Original Symptom and an Unaffected Control
  8. Close the Incident with Evidence and Remaining Limits
  9. Scenario-Based Quiz
28Endpoint and Mobile Hardening

Explore Secure configuration and account practices, System data and application protections, Mobile access encryption and ownership models, and Lost devices management and policy validation.

Explore The Lesson’s 4 Sections

Secure configuration and account practices

  1. Make Passwords Long Unique and Difficult to Predict
  2. Interpret Complexity and Expiration Without Outdated Rules
  3. Use Password Managers Without Moving Secrets into Tickets
  4. Restrict Permissions to the Actual Work
  5. Bound Accounts by Time and Lifecycle
  6. Balance Failed-Attempt Restrictions with Availability
  7. Remove Unnecessary Guest and Default-Account Exposure
  8. Distinguish Locking Logging Off and Visual Inactivity
  9. Scenario-Based Quiz

System data and application protections

  1. Protect Data at Rest and Preserve Recovery
  2. Use Firmware Passwords Within Their Real Scope
  3. Secure Critical Hardware Against Loss and Tampering
  4. Limit Exposure of Personal Information and Secrets
  5. Disable Unnecessary Automatic Execution from Media
  6. Disable Unused Services Without Breaking Dependencies
  7. Plan Hardening Changes and Exceptions
  8. Verify Hardening as Behavior Rather Than Settings Alone
  9. Scenario-Based Quiz

Mobile access encryption and ownership models

  1. Choose a Mobile Passcode for the Device’s Role
  2. Use Biometrics with a Strong Fallback
  3. Distinguish Swipe Pattern and Authenticated Unlocking
  4. Understand Mobile Encryption State and Key Protection
  5. Inspect Configuration-Profile Authority and Scope
  6. Manage Mobile Operating-System Updates
  7. Update Applications Through Approved Distribution
  8. Match Mobile Security Software to Platform Capabilities
  9. Scenario-Based Quiz

Lost devices management and policy validation

  1. Compare Personal and Corporate Ownership Models
  2. Understand MDM Enrollment and Administrative Reach
  3. Prepare Locator Services and Interpret Location Evidence
  4. Treat Remote Wipe as a Consequential Command
  5. Verify Mobile Backups and Restoration Scope
  6. Understand Mobile Failed-Attempt Restrictions
  7. Validate Profile Compliance on the Intended Scope
  8. Coordinate a Lost-Device Response from Preparation to Closure
  9. Scenario-Based Quiz
29SOHO and Browser Security

Explore Secure router administration and perimeter services, Wireless segmentation and device safeguards, Browser trust configuration and privacy, and Extensions downloads content controls and verification.

Explore The Lesson’s 4 Sections

Secure router administration and perimeter services

  1. Identify the Router and Secure Its Physical Location
  2. Replace Default Administration Credentials
  3. Update Firmware Using Exact Device Identity
  4. Limit Secure Management Access
  5. Interpret IP Filtering as Scoped Traffic Policy
  6. Review UPnP-Created Exposure
  7. Distinguish a Screened Subnet from a Consumer DMZ Host
  8. Create Only Necessary Port Forwards
  9. Scenario-Based Quiz

Wireless segmentation and device safeguards

  1. Choose an SSID Without Confusing Naming and Security
  2. Understand Why Hiding an SSID Is Not Protection
  3. Select Supported Wireless Encryption and Authentication
  4. Configure Guest Access as a Separate Trust Zone
  5. Restrict Less-Trusted Devices to Required Services
  6. Interpret Router Content Filtering and Its Limits
  7. Audit Unused Ports and Stale Network Exceptions
  8. Verify a Complete SOHO Security Baseline
  9. Scenario-Based Quiz

Browser trust configuration and privacy

  1. Obtain Browsers from Verified Distribution Routes
  2. Use Hashes for Integrity with a Trusted Reference
  3. Keep the Browser Patched and Restart When Required
  4. Validate Secure Connections Without Overtrusting HTTPS
  5. Configure Browser Password Storage Deliberately
  6. Choose Browsing-Data Deletion by Category and Scope
  7. Use Cache Clearing as a Targeted Diagnostic Step
  8. Explain Private Browsing Without Promising Anonymity
  9. Scenario-Based Quiz

Extensions downloads content controls and verification

  1. Review Extension Source and Requested Permissions
  2. Distinguish Disabling Removing and Legacy Plug-Ins
  3. Scope Pop-up and Advertising Controls
  4. Control Browser Sign-in and Synchronization
  5. Verify Proxy Configuration and Trust
  6. Understand Secure DNS and Resolver Choice
  7. Grant Browser Features Only to the Intended Site
  8. Verify Browser Security Without Losing Required Function
  9. Scenario-Based Quiz
08Core 2 · Software Troubleshooting2 Lessons
30Windows Software Troubleshooting

Explore Boot startup update and recovery failures, Services applications and driver problems, Performance capacity profiles and system time, and Documented diagnosis least-destructive repair and validation.

Explore The Lesson’s 4 Sections

Boot startup update and recovery failures

  1. Locate the Failure Within the Startup Sequence
  2. Interpret a No-Operating-System Message
  3. Check Firmware Boot Mode Without Creating a Second Fault
  4. Use Startup Repair for an Established Boot-File Problem
  5. Use Safe Mode as a Comparison Condition
  6. Separate Update Installation Failure from Post-Update Regression
  7. Assess System Restore by Its Scope and Prerequisites
  8. Prepare Recovery Access Before Escalating Repair
  9. Scenario-Based Quiz

Services applications and driver problems

  1. Trace a Service Dependency Failure
  2. Diagnose a Service Identity and Permission Problem
  3. Distinguish Startup Timing from Persistent Service Failure
  4. Read an Application Crash as a Bounded Failure
  5. Use a Controlled Account Comparison for Application Problems
  6. Check Application Prerequisites and Supported Compatibility
  7. Correlate Driver Changes with Instability
  8. Interpret USB Controller Resource Warnings
  9. Scenario-Based Quiz

Performance capacity profiles and system time

  1. Measure CPU Demand Against the Actual Workload
  2. Distinguish Physical Memory Pressure from Commit Exhaustion
  3. Recognize Growth Patterns That Suggest a Memory Leak
  4. Separate Storage Capacity from Storage Performance
  5. Break Slow Profile Loading into Observable Dependencies
  6. Distinguish Clock Drift from Time-Zone Display Errors
  7. Classify Frequent Shutdowns Before Blaming Windows
  8. Evaluate Intermittent System Instability with Bounded Tests
  9. Scenario-Based Quiz

Documented diagnosis least-destructive repair and validation

  1. Define a Reproducible Test and a Useful Baseline
  2. Build a Chronology from Events Without Overclaiming Causation
  3. Use a Clean Boot as a Temporary Isolation Experiment
  4. Match DISM and SFC to System-Component Evidence
  5. Choose Storage Checks According to Data-Loss Risk
  6. Select a Repair, Reset, or Rebuild by Evidence and Scope
  7. Verify the Fix Under Normal Permissions and Conditions
  8. Write a Handoff That Preserves Diagnostic Value
  9. Scenario-Based Quiz
31Mobile Application and Security Troubleshooting

Explore Crashes updates storage and application recovery, Synchronization connectivity and audio-video functionality, Mobile compromise unauthorized access and suspicious behavior, and Containment recovery and policy-compliant verification.

Explore The Lesson’s 4 Sections

Crashes updates storage and application recovery

  1. Isolate an Application That Will Not Launch
  2. Distinguish a Frozen App from Normal Background Suspension
  3. Investigate Repeated Application Crashes
  4. Resolve an Application Update Failure by Stage
  5. Check Installation Eligibility and Deployment Ownership
  6. Separate Cache Cleanup from Deletion of App Data
  7. Diagnose a Mobile Operating-System Update Failure
  8. Investigate Random Reboots Without Hazardous Reproduction
  9. Scenario-Based Quiz

Synchronization connectivity and audio-video functionality

  1. Separate Local Responsiveness from Remote-Service Delay
  2. Read Battery Usage in the Context of Activity
  3. Troubleshoot Wi-Fi from Association to Service Access
  4. Separate Bluetooth Pairing from the Required Function
  5. Diagnose NFC Without Making a Real Transaction
  6. Verify Synchronization Direction and Account Scope
  7. Trace Mobile Audio and Video Through Permissions and Routing
  8. Check Orientation Support Before Diagnosing Sensors
  9. Scenario-Based Quiz

Mobile compromise unauthorized access and suspicious behavior

  1. Assess Application Source Without Relying on Appearance
  2. Understand Developer Mode and Debugging Exposure
  3. Recognize Root and Jailbreak Implications
  4. Identify Application Spoofing Through Independent Identity Checks
  5. Interpret Unusual Traffic and Data-Limit Notifications
  6. Trace Excessive Ads and Fake Security Warnings to Their Source
  7. Evaluate Unexpected Behavior and Permission Changes
  8. Treat Leaked Files as an Exposure Investigation
  9. Scenario-Based Quiz

Containment recovery and policy-compliant verification

  1. Combine Symptoms Before Declaring Compromise
  2. Investigate Limited Connectivity as a Possible Security Symptom
  3. Contain a Suspect Device While Preserving Useful Evidence
  4. Recover an Unauthorized App Within Management Boundaries
  5. Address Account Compromise from a Trusted Device
  6. Restore a Trusted Platform Without Blindly Restoring the Problem
  7. Handle Suspected Stalkerware with Personal Safety in Mind
  8. Verify Recovery Across Device, Account, and Policy Requirements
  9. Scenario-Based Quiz
09Core 2 · Operational Procedures5 Lessons
32Support Documentation and Customer Communication

Explore Ticket quality priorities and lifecycle, Assets diagrams knowledge and standard procedures, Professional support conversations, and Expectation management accessibility and closure.

Explore The Lesson’s 4 Sections

Ticket quality priorities and lifecycle

  1. Capture the Right Requester and Contact Information
  2. Identify the Affected Device and Relevant Environment
  3. Describe Expected and Actual Behavior Without Guessing a Cause
  4. Use Categories to Route Work Without Hiding Its Nature
  5. Distinguish Severity Priority and Service Commitments
  6. Keep Lifecycle State and Ownership Meaningful
  7. Write Progress Notes That Preserve Evidence and Sequence
  8. Escalate with an Actionable Handoff and Retained Ownership
  9. Scenario-Based Quiz

Assets diagrams knowledge and standard procedures

  1. Maintain Inventory IDs Tags and Assigned Users
  2. Use CMDB Relationships to Understand Service Dependencies
  3. Document the Procurement and Retirement Lifecycle
  4. Track Warranty and Licensing Evidence Without Secrets
  5. Read Physical and Logical Diagrams for Different Questions
  6. Turn Validated Resolutions into Usable Knowledge Articles
  7. Write an SOP for a Custom Software Installation
  8. Use Onboarding and Offboarding Checklists as Controlled Handoffs
  9. Scenario-Based Quiz

Professional support conversations

  1. Match Professional Appearance to the Service Environment
  2. Protect Appointments Through Punctuality and Early Notice
  3. Listen for the Task Impact and Sequence Before Responding
  4. Move from Open Questions to Precise Confirmation
  5. Translate Technical Findings into Useful Plain Language
  6. Project Confidence Through a Clear Plan and Honest Limits
  7. Respect Names Titles Culture and Communication Preferences
  8. Remove Distractions and Explain Necessary Interruptions
  9. Scenario-Based Quiz

Expectation management accessibility and closure

  1. Handle Difficult Situations Without Argument or Dismissal
  2. Set Timelines and Status Updates That Survive Uncertainty
  3. Offer Repair and Replacement Choices with Meaningful Approval
  4. Adapt Support to Accessibility Needs Without Assumptions
  5. Protect Private Materials on Screens Desks and Printers
  6. Provide a Service Record the Customer Can Actually Use
  7. Verify Restoration Closure and Later Satisfaction Separately
  8. Discuss Support Experiences with Discretion and Professionalism
  9. Scenario-Based Quiz
33Change Control Backup and Recovery

Explore Change request risk scope and approvals, Implementation rollback and validation, Backup types schedules storage and retention, and Restore tests recovery planning and evidence.

Explore The Lesson’s 4 Sections

Change request risk scope and approvals

  1. Translate a Business Need into a Change Request
  2. Set Boundaries and Find Dependent Services
  3. Recognize the Limits of a Standard Change
  4. Route a Normal Change Through Review
  5. Use Emergency Authority Without Abandoning Control
  6. Analyze Likelihood Impact and Residual Risk
  7. Choose a Window and Respect Change Freezes
  8. Assign Accountable Roles and Confirm Approval
  9. Scenario-Based Quiz

Implementation rollback and validation

  1. Capture a Usable Baseline Before Changing State
  2. Test Representative Behavior in an Isolated Sandbox
  3. Use Peer Review to Challenge the Plan
  4. Verify the Backup Prerequisite Before Execution
  5. Execute an Ordered Runbook with Checkpoints
  6. Define Rollback Triggers and Practical Recovery Steps
  7. Separate Technical Validation from End-User Acceptance
  8. Close the Change with Accurate Outcomes and Lessons
  9. Scenario-Based Quiz

Backup types schedules storage and retention

  1. Choose a Full Backup as an Independent Baseline
  2. Trace a Forward Incremental Restore Chain
  3. Distinguish a Differential Chain from an Incremental One
  4. Understand How a Synthetic Full Is Assembled
  5. Build a Grandfather-Father-Son Rotation
  6. Apply the 3-2-1 Rule to Independent Failure Risks
  7. Compare Onsite Offsite and Cloud Recovery Access
  8. Set Backup Frequency and Retention from Recovery Needs
  9. Scenario-Based Quiz

Restore tests recovery planning and evidence

  1. Control an in-Place Overwrite Recovery
  2. Restore to an Alternative Location for Comparison
  3. Select a Clean Recovery Point and Its Dependencies
  4. Validate Data Integrity Usability and Permissions
  5. Plan Recurring and Event-Driven Recovery Tests
  6. Recover When the Primary Site or Device Is Unavailable
  7. Use Recovery Point and Time Objectives as Enrichment
  8. Integrate a Controlled Recovery Exercise and Acceptance Record
  9. Scenario-Based Quiz
34Safety Environment and Secure Disposal

Explore Personal electrical lifting and ESD safety, Environmental controls protection and responsible handling, Media sanitization and disposal selection, and Chain of handling vendor evidence and safe closure.

Explore The Lesson’s 4 Sections

Personal electrical lifting and ESD safety

  1. Disconnect Every Relevant Power Source
  2. Respect Protective Grounding and Damaged Cords
  3. Keep Power Supplies and High-Voltage Assemblies Closed
  4. Use an ESD Strap Only in an Appropriate Safe Setup
  5. Prepare the Mat and Component-Handling Area
  6. Choose Protective Packaging and Storage
  7. Plan Lifting and Cable Movement Before Service
  8. Respond to Fire Hazards and Select Appropriate Protection
  9. Scenario-Based Quiz

Environmental controls protection and responsible handling

  1. Use Safety Data Sheets for the Actual Material
  2. Handle Damaged and Spent Batteries as Distinct Cases
  3. Control Toner Waste and Printer Consumables
  4. Separate Electronic Recycling from Data Sanitization
  5. Manage Temperature Ventilation and Equipment Placement
  6. Interpret Humidity Moisture and Condensation Risk
  7. Remove Dust with Equipment-Appropriate Methods
  8. Match UPS and Surge Protection to Power Conditions
  9. Scenario-Based Quiz

Media sanitization and disposal selection

  1. Choose a Sanitization Outcome Before a Technique
  2. Distinguish Deletion Formatting and Sanitization
  3. Evaluate Overwriting for Magnetic Storage
  4. Account for Flash Translation and SSD Reserved Areas
  5. Evaluate Cryptographic Erase Prerequisites
  6. Restrict Degaussing to Suitable Magnetic Media
  7. Distinguish Physical Damage from Effective Destruction
  8. Choose Reuse Recycling and Vendor-Return Paths
  9. Scenario-Based Quiz

Chain of handling vendor evidence and safe closure

  1. Reconcile Assets and All Data-Bearing Components
  2. Check Retention and Release Authority Before Erasure
  3. Evaluate a Disposal Vendor’s Actual Process
  4. Maintain Controlled Custody During Transport
  5. Verify What the Sanitization Operation Actually Did
  6. Validate Adequacy and Reject Unsuitable Outcomes
  7. Read Certificates as Evidence Rather Than Magic
  8. Close the Asset Lifecycle with Exceptions Visible
  9. Scenario-Based Quiz
35Evidence Privacy Licensing and Responsible AI

Explore Incident recognition escalation and evidence care, Licensing agreements and controlled information, Privacy policies data handling and permitted use, and AI capabilities limitations security and verification.

Explore The Lesson’s 4 Sections

Incident recognition escalation and evidence care

  1. Recognize a Possible Incident Without Becoming an Investigator
  2. Escalate Through Management and Appropriate Authorities
  3. Prioritize Evidence by Volatility and Risk
  4. Preserve the Scene and the Device State
  5. Distinguish a Forensic Acquisition from an Ordinary File Copy
  6. Interpret Cryptographic Integrity Checks Correctly
  7. Maintain an Identifiable Chain of Custody
  8. Write Incident Notes That Separate Fact from Inference
  9. Scenario-Based Quiz

Licensing agreements and controlled information

  1. Verify a Software Entitlement Independently of Activation
  2. Distinguish Perpetual Use Rights from Continuing Services
  3. Match Personal and Corporate Use to the Actual Terms
  4. Understand Open-Source Permission and Obligations
  5. Read an EULA as a Deployment Boundary
  6. Distinguish DRM Controls from License Rights
  7. Apply NDA and Mutual NDA Scope to Support Sharing
  8. Reconcile Licensing During Device and User Transitions
  9. Scenario-Based Quiz

Privacy policies data handling and permitted use

  1. Recognize Personal and Government-Issued Information
  2. Keep Payment Information Out of Ordinary Diagnostics
  3. Handle Healthcare Data Within the Applicable Context
  4. Apply Retention Schedules and Preservation Holds
  5. Use the Acceptable Use Policy as an Explicit Boundary
  6. Understand What a Splash Screen Can and Cannot Establish
  7. Separate Regulatory Duties from Business Requirements
  8. Build a Minimal and Controlled Support Package
  9. Scenario-Based Quiz

AI capabilities limitations security and verification

  1. Map an AI Integration from Input to Action
  2. Apply an Explicit AI-Use Policy to the Task
  3. Avoid Plagiarism and Evaluate Reuse Rights Separately
  4. Look for Bias in Inputs, Patterns, and Evaluation
  5. Detect Hallucinations and Test Technical Accuracy
  6. Compare Private and Public AI Through Actual Controls
  7. Evaluate Data Sources and Untrusted Retrieved Content
  8. Require Accountable Human Review Before Consequential Use
  9. Scenario-Based Quiz
36Scripting and Remote Support

Explore Script purposes formats variables and execution context, Safe automation testing approvals and rollback, Remote-access methods permissions and risks, and Supervised support secure transfer and session closure.

Explore The Lesson’s 4 Sections

Script purposes formats variables and execution context

  1. Define a Script by Its Purpose and Execution Context
  2. Recognize Windows Batch Scripts and Command Expansion
  3. Recognize PowerShell Scripts and Object-Oriented Pipelines
  4. Recognize VBScript and Plan for Legacy Dependencies
  5. Recognize Shell Scripts and Interpreter Portability
  6. Recognize JavaScript and the Privileges of Its Runtime
  7. Recognize Python Scripts and Dependency Assumptions
  8. Trace Variables Conditions Loops and Return Status
  9. Scenario-Based Quiz

Safe automation testing approvals and rollback

  1. Automate Bounded Information Gathering
  2. Remap Network Drives Without Hiding Access Problems
  3. Install Applications with Verified Packages and Detection Rules
  4. Initiate Updates Within Deployment Policy
  5. Restart Machines with Explicit Targets and Recovery Expectations
  6. Automate Backups with Restore-Aware Verification
  7. Review Script Sources and Inputs Before Trusting Automation
  8. Test Resource Limits Partial Failures and Rollback
  9. Scenario-Based Quiz

Remote-access methods permissions and risks

  1. Use RDP for an Authorized Interactive Desktop
  2. Use a VPN as an Approved Network Path
  3. Evaluate VNC and Its Implementation-Specific Security
  4. Use SSH with Verified Host Identity and Limited Authority
  5. Treat RMM as a Powerful Management Platform
  6. Use SPICE as a Virtual-Machine Display and Device Channel
  7. Use WinRM for Remote Management Rather Than Screen Viewing
  8. Choose Remote Methods by Capability and Trust Boundary
  9. Scenario-Based Quiz

Supervised support secure transfer and session closure

  1. Use Screen Sharing with an Explicit Viewing and Control Scope
  2. Use Videoconferencing Without Expanding the Audience or Recording
  3. Transfer Files Through a Verified Protected Channel
  4. Use Desktop Management with Controlled Fleet Scope
  5. Verify People Devices and Permission Before Connecting
  6. Check Endpoint Identity Encryption and Exposure Separately
  7. Conduct a Supervised Repair with Visible Checkpoints
  8. Close the Session and Verify Remaining Access
  9. Scenario-Based Quiz

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08 Connect The Learning To The Work

Turn Technical Curiosity Into A Direction.

Use the course as a foundation for conversations about the work you want to do. Explore role responsibilities in the Student Center’s Career Lab and identify the experience you still need to build.

01

IT Support Specialist

Device issues, account access, ticket quality, and customer communication.

02

Desktop Support Technician

Operating systems, endpoint setup, safe maintenance, and recovery.

03

Help Desk Analyst

Troubleshooting sequences, escalation, and clear service records.

These are related role areas to research, not guaranteed employment outcomes. Requirements vary by employer, experience, and credential.

Explore The Career Lab Walkthrough

09 Keep Your Options Open

One Membership.
Nine Ways Forward.

IT, cybersecurity, AI, projects, and people. All Access brings all nine Hero Cyber programs and the Student Center into one membership, so your next subject does not need a separate course subscription.

All Access
$299/ month

Monthly billing. Access continues while subscribed.

Choose All Access

All Access Guided: $449 / month
Add Monthly Q&A And A Study Roadmap

Explore All Nine Programs

All Access Guided adds monthly instructor Q&A, a study roadmap, and priority guidance. Full Live Online class seats and individual readiness appointments are separate from All Access memberships.

10 Before You Enroll

Good Questions.
Clear Answers.

Know what you are studying, how access works, and which support belongs to your chosen plan.

Talk With Hero Cyber
01Does Tech Hero Cover Both A+ Exams?

Yes. Tech Hero covers CompTIA A+ Core 1 and Core 2 in one course with 36 lessons. Core 1 contains 16 lessons and Core 2 contains 20. The curriculum identifies each lesson by its exam core, so you can study both in sequence or concentrate your review on the core you plan to take next.

02Do I Need IT Experience To Begin?

Tech Hero is designed for learners building an IT support foundation as well as people strengthening existing support skills. You can begin with device and hardware lessons, then work toward operating systems and service procedures. Familiarity with everyday computer use helps you connect the explanations to equipment and support requests you have already encountered.

03What Study Resources Are Included?

The course contains 36 lessons organized into 144 sections, with 1,152 instructional chapters and 144 scenario quiz blocks. It also includes 2,304 flashcards and 1,728 practice items. The Student Center brings the learning resources together with notes, highlights, and progress tools so you can return to the concepts and procedures that need another pass.

04How Long Can I Access The Course?

Hero Access and Hero Guided provide access while your monthly subscription remains active. Certification Prep provides 12 months of course and Student Center access. These are different enrollment options: the monthly memberships follow your subscription period, while Certification Prep has a defined twelve month access period and its own review and class inclusions.

05Which Plan Includes Instructor Reviews?

Hero Guided adds monthly instructor Q&A and guided review to the self paced resources for $199 per month while subscribed. Certification Prep costs $2,495 and includes six group certification review sessions and two individual readiness reviews, along with a personal certification study plan. The 30 day free trial belongs to Hero Access at $149 per month.

06Is A Live Online Class Included?

Certification Prep includes one full eligible Live Online class seat for the selected program, with the class starting within 12 months of enrollment. Tech Hero class availability must be confirmed before purchase. Hero Access and Hero Guided do not include a full Live Online class seat or individual readiness appointments as part of their monthly memberships.

07Are A+ Exam Vouchers Included?

Confirm voucher coverage in your enrollment quote before purchasing. A+ involves separate Core 1 and Core 2 exams, so the quote needs to specify whether either voucher is included and which exam it covers. The course and the listed plans do not carry a general promise that both exam vouchers are included.

08How Should I Organize My Study?

Choose a core and follow its lessons in order, then use the matching flashcards and practice to revisit weak areas. Give hardware diagnosis, operating system recovery, and support procedures time beyond a quick terminology review. Keep notes on why a repair fits the evidence, and use the reviews available through your selected plan when you need help connecting topics.

Your Next Chapter / A+

Your Next Support RequestDeserves A Better Answer.

Tech Hero brings the course, the practice, and your next study session together. Start with 30 days free on Hero Access.

Start My 30 Day TrialThen $149/month until canceled. Review the billing terms at checkout.
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