Introduction
Part I: Introduction to Core 1 (220-1101)
CORE 1 (220-1101): DOMAIN 1.0: MOBILE DEVICES
Chapter 1 Laptop Hardware and Components
Introduction to Laptops
Power
Keyboards/Keys
Special Function Keys
Troubleshooting Keyboards
Touchpad
Random-Access Memory (RAM)
Storage Drives
Communications
Physical Privacy
Chapter 2 Mobile Device Display Components
Display Types
Inverter and Backlight
Damaged Inverter
Worn-Out Backlight
Digitizers and Touchscreens
Webcam and Microphone
Wi-Fi Antenna Connector and Placement
Chapter 3 Mobile Device Accessories and Ports
Connection Types
Wired Connections
Wireless Connections
Accessories
Docking Stations and Port Replicators
Drawing Pads, Touchpads, and Touch Pens
Chapter 4 Mobile Device Network Connectivity and Application Support
Enabling Wireless Functions
Bluetooth
Email Configuration
Integrated Commercial Provider Email Configuration
Corporate and ISP Email Configuration
Cellular Radio Technologies
Location Services
GPS
Cellular Location
IMEI and IMSI
Synchronization Methods
Synchronizing to the Cloud
Synchronizing to the Desktop
Synchronizing to the Automobile
Mobile Device Management (MDM)
CORE 1 (220-1101): DOMAIN 2.0: NETWORKING
Chapter 5 TCP and UDP Ports and Protocols
TCP vs. UDP
Ports and Protocols
HTTP vs. HTTPS
Email Protocols
FTP, SSH, and Telnet
DHCP
DNS
LDAP
RDP
More Protocols and Ports
Chapter 6 Network Devices
Switches
Routers
Wireless Access Points
Firewalls
Network Interface Cards
Hubs
Patch Panels
Power over Ethernet
Cable/DSL Modems
Network Interface Devices
Software-Defined Networking
Chapter 7 Wireless Protocols
802.11 Wireless
Long-Range Fixed Wireless
RFID
Chapter 8 Networked Hosts
Server Roles
File Servers
Web Servers
Print Servers
Mail Servers
Proxy Servers
DHCP Servers
DNS Servers
Syslog Servers
AAA Servers
Internet Security Appliances
Network Firewall
UTM
Spam Gateway
Load Balancer
Embedded Systems and IoT
Embedded Systems
IoT
Chapter 9 SOHO Network Configuration
Configuring IPv4
Private vs. Public Addresses
Configuring IPv6
Chapter 10 Network Configuration Concepts
DNS
Email Authentication Methods
DHCP
DHCP Process
DHCP Reservations
VLANs
VPNs
Chapter 11 Network Types
Network Types
LAN and WAN
MAN
SAN
WLAN
WMN
PAN
Internet Connection Types
Cable Internet
DSL
Fiber
Satellite
Wireless Internet Service Provider
Chapter 12 Networking Tools
Network Cabling Tools
Network Tap
Wi-Fi Analyzers
CORE 1 (220-1101): DOMAIN 3.0: HARDWARE
Chapter 13 Cables and Connectors
Network Cables
Twisted Pair
Coaxial
Optical
Peripheral Cables and Connectors
USB
Lightning and Thunderbolt
Serial
Video Cables and Connectors
Storage Drive Cables and Connectors
Adapters
Chapter 14 RAM
RAM Types
DDR3
DDR4
DDR5
Installing RAM
RAM Technologies
Single-Channel vs. Multichannel Architectures
ECC vs. Non-ECC
Chapter 15 Storage Drives
SATA
Magnetic Hard Drives
Solid-State Drives
RAID
Flash
USB Flash Drives
Secure Digital Cards
Optical Drives
Chapter 16 Motherboards and Add-on Cards
Motherboard Form Factors and Connector Types
ATX
microATX
ITX
Expansion Buses
Expansion Cards
Installing Video Cards
Sound Cards
Other Expansion Cards
More Ports and Connectors
BIOS/UEFI Settings
The POST
Chapter 17 CPUs
CPU Architecture
Clock Rate
Overclocking
Types of CPUs
Multithreading and Multicore
Cache Memory
CPU Compatibility
Intel and AMD
Sockets
Power Consumption
Cooling Mechanisms
Heat Sinks
Thermal Paste
Fans
Liquid Cooling Systems
Installing CPUs
Chapter 18 Power
Planning Which Power Supply to Use
Types of Power Supplies and Compatibility
Wattage and Capacity Requirements
Number and Type of Power Connectors
Modular and Redundant PSUs
Installing the Power Supply
Chapter 19 Multifunction Devices/Printers
Setup Considerations
Printer Configuration Settings
Basic Printer Configuration Settings
Sharing Printers and Managing Permissions
Local vs. Network Printers
Basic Printer Security
Chapter 20 Printer Consumables
Laser Printers
Inkjet Printers
Thermal Printers
Impact Printers
3D Printers
CORE 1 (220-1101): DOMAIN 4.0: VIRTUALIZATION AND CLOUD COMPUTING
Chapter 21 Cloud Computing Concepts
Introduction to Cloud Computing
Common Cloud Models
Cloud Computing Characteristics
Desktop Virtualization
Chapter 22 Client-Side Virtualization
Purpose of Virtual Machines
Hypervisors
Examples of Virtual Machine Software
Virtual Machine Requirements
Cross-Platform Virtualization
Containers and Sandboxes
OS-Level Virtualization (Containers)
Sandboxes
CORE 1 (220-1101): DOMAIN 5.0: HARDWARE AND NETWORK TROUBLESHOOTING
Chapter 23 Computer Troubleshooting 101
The CompTIA Six-Step Troubleshooting Process
Step 1: Identify the Problem
Step 2: Establish a Theory of Probable Cause (Question the Obvious)
Step 3: Test the Theory to Determine the Cause
Step 4: Establish a Plan of Action to Resolve the Problem and Implement the Solution
Step 5: Verify Full System Functionality and, if Applicable, Implement Preventive Measures
Step 6: Document the Findings, Actions, and Outcomes
Chapter 24 Troubleshooting Motherboards, CPUs, RAM, and Power
Troubleshooting Motherboards
Troubleshooting CPUs
Troubleshooting RAM
Troubleshooting Power Supply Issues
Heating and Cooling
Chapter 25 Troubleshooting Storage Drives and RAID Arrays
Preventive Maintenance and Troubleshooting of Storage Drives
Storage Drive Preventive Maintenance
Storage Drive Troubleshooting
Troubleshooting RAID Arrays
Chapter 26 Troubleshooting Video Issues
PC Video Troubleshooting
External Laptop Monitors and Projectors
External Laptop Monitors
Projectors
Chapter 27 Troubleshooting Mobile Devices
Mobile Device Display Troubleshooting
Mobile Device Overheating
More Mobile Device Troubleshooting
Disassembling Processes
Chapter 28 Troubleshooting Printers
Troubleshooting Printers
Print Jobs and the Print Spooler
Managing Printers and Print Jobs
The Windows Print Spooler
Chapter 29 Troubleshooting Wired and Wireless Network Problems
Troubleshooting Common Symptoms
A+ Core 1 (220-1101) Practice Exam
Part II: Introduction to Core 2 (220-1102)
CORE 2 (220-1102): DOMAIN 1.0: OPERATING SYSTEMS
Chapter 30 Comparing Windows Editions
Windows 10 Editions and Feature Differences
Windows Desktop/User Interface and Components
Windows 10 Upgrade Paths
Windows 11
Chapter 31 Microsoft Command-Line Tools, Part I
Microsoft Command-Line Basics
Command Prompt
PowerShell
Windows Terminal
Ask for Help!
Navigating in the Command Line
Working with Directories and Files
Partitioning and File System-Based Commands
chkdsk and sfc
chkdsk
SFC
winver and shutdown
shutdown
Advanced Commands: gpupdate and gpresult
Chapter 32 Microsoft Command-Line Tools, Part II
Networking Commands
ipconfig
ping
tracert and pathping
hostname
netstat
nslookup
net
Bonus Command: arp
Chapter 33 Microsoft Operating System Features and Tools, Part I
Task Manager
The MMC and Administrative Tools
The MMC
Event Viewer
Task Scheduler
Device Manager
Certificate Manager
Local Users and Groups
Performance Monitor
Group Policy Editor and Local Security Policy
Services
Bonus Tool: Computer Management
Chapter 34 Microsoft Operating System Features and Tools, Part II
Disk Management
The Disk Management Utility
Mount Points and Mounting a Drive
Storage Spaces
Disk Cleanup
Optimize Drives/Disk Defragmenter
Additional Windows Tools
System Information/msinfo32
Resource Monitor
System Configuration/MSConfig
The Windows Registry
Chapter 35 Windows Control Panel Utilities
Opening and Viewing the Control Panel Utilities
Internet Options
Devices and Printers
Programs and Features
Program Compatibility
Windows Defender Firewall
Mail
Sound
User Accounts
Indexing Options
File Explorer Options
Power Management
Ease of Access Center
Chapter 36 Windows Settings
How to Access Settings
Time & Language
Update & Security
Windows Update
Windows Defender Firewall
Personalization
Apps
Privacy
System
Display
Power & Sleep
Storage
About and System Properties
Virtual Memory
Devices
Network & Internet
Gaming
Accounts
Chapter 37 Windows Networking
Workgroup vs. Domain Setup
Sharing Resources and Making Network Connections
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