Complete A+ Core 1 220-1101 study guide — mobile devices, networking, hardware, cloud, and troubleshooting.
This guide works best as a loop: read a chapter, test yourself with practice questions, look up unfamiliar terms in the glossary, then move to the next chapter.
123 chapters covering every exam objective. Each chapter includes key concepts, exam tips, common traps, comparison tables, and a 5-question quiz at the end.
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View exam guide20 chapters
Laptop Hardware and Components
Objective 1.1 · Mobile Devices
Mobile Device Types and Features
Objective 1.2 · Mobile Devices
Mobile Device Connectivity
Objective 1.3 · Mobile Devices
Laptop Display Types: IPS, TN, OLED, Touch
Objective 1.1 · Mobile Devices
Laptop Storage: HDD, SSD, NVMe, eMMC
Objective 1.1 · Mobile Devices
Laptop Connectivity Ports: USB-C, Thunderbolt, HDMI
Objective 1.1 · Mobile Devices
Laptop Keyboard and Touchpad Replacement
Objective 1.1 · Mobile Devices
Laptop Battery Care and Replacement
Objective 1.1 · Mobile Devices
Mobile Operating Systems: iOS and Android
Objective 1.2 · Mobile Devices
Mobile Device Sync Methods
Objective 1.2 · Mobile Devices
Mobile Email Configuration: POP3, IMAP, Exchange
Objective 1.2 · Mobile Devices
Mobile VPN Configuration
Objective 1.2 · Mobile Devices
Mobile Device Security: Face ID, PIN, Remote Wipe
Objective 1.2 · Mobile Devices
Cellular Radio Technologies: 3G, 4G LTE, 5G
Objective 1.3 · Mobile Devices
GPS and Navigation Technology
Objective 1.3 · Mobile Devices
NFC and RFID Technologies
Objective 1.3 · Mobile Devices
Bluetooth Profiles and Versions
Objective 1.3 · Mobile Devices
IoT Device Types and Connectivity
Objective 1.3 · Mobile Devices
MDM Enrollment and Management
Objective 1.2 · Mobile Devices
Tablet Types and Use Cases
Objective 1.2 · Mobile Devices
22 chapters
TCP/IP and Common Ports for A+
Objective 2.1 · Networking
Wi-Fi Standards and Protocols
Objective 2.2 · Networking
Networking Hardware: Routers, Switches, APs
Objective 2.3 · Networking
Network Configuration: IP, DNS, DHCP
Objective 2.4 · Networking
Internet Connection Types
Objective 2.5 · Networking
DNS and DHCP Configuration for A+
Objective 2.1 · Networking
IPv4 Address Classes and Ranges
Objective 2.1 · Networking
Private vs Public IP Addresses
Objective 2.1 · Networking
Subnet Masks and CIDR for A+
Objective 2.1 · Networking
IPv6 Basics for A+
Objective 2.1 · Networking
Default Gateway Configuration
Objective 2.1 · Networking
Network Cable Types: Cat5e, Cat6, Cat6a, Cat8
Objective 2.3 · Networking
RJ-45 Crimping and T568A/B Pinouts
Objective 2.3 · Networking
Fiber Optic Cables for A+
Objective 2.3 · Networking
Wireless Security: WEP, WPA, WPA2, WPA3
Objective 2.2 · Networking
Firewall Basics for A+
Objective 2.4 · Networking
VPN Basics for A+
Objective 2.4 · Networking
Network Command Tools: ping, ipconfig, nslookup, tracert
Objective 2.4 · Networking
Home and SOHO Network Setup
Objective 2.3 · Networking
Metered Network Connections
Objective 2.4 · Networking
Proxy Server Configuration
Objective 2.4 · Networking
Common Ports and Protocols for A+
Objective 2.1 · Networking
38 chapters
Motherboard Components and Form Factors
Objective 3.1 · Hardware
CPU Types, Sockets, and Cooling
Objective 3.2 · Hardware
RAM Types and Memory Slots
Objective 3.3 · Hardware
Storage Devices: HDD, SSD, NVMe
Objective 3.4 · Hardware
Power Supply Units and Connectors
Objective 3.5 · Hardware
GPUs and Display Technologies
Objective 3.6 · Hardware
Peripherals and Input Devices
Objective 3.7 · Hardware
Printer Types and Components
Objective 3.8 · Hardware
BIOS and UEFI Settings
Objective 3.1 · Hardware
CPU Architecture: x86 vs ARM
Objective 3.2 · Hardware
CPU Cores, Threads, and Hyperthreading
Objective 3.2 · Hardware
CPU Cooling: Air vs Liquid Cooling
Objective 3.2 · Hardware
Thermal Paste Application
Objective 3.2 · Hardware
RAM Installation and Dual-Channel Configuration
Objective 3.3 · Hardware
RAM Error Types: ECC vs Non-ECC
Objective 3.3 · Hardware
NVMe and M.2 Form Factors
Objective 3.4 · Hardware
RAID Levels: 0, 1, 5, 6, 10
Objective 3.4 · Hardware
SSD TRIM, Wear Leveling, and Over-Provisioning
Objective 3.4 · Hardware
HDD Mechanical Components and Specifications
Objective 3.4 · Hardware
Optical Drive Types: DVD, Blu-Ray
Objective 3.4 · Hardware
PSU Efficiency Ratings (80 Plus Gold, Platinum)
Objective 3.5 · Hardware
PSU Connector Types: 24-pin, PCIe, SATA
Objective 3.5 · Hardware
PCIe Slots and Expansion Cards
Objective 3.1 · Hardware
GPU Output Ports: HDMI, DisplayPort, DVI
Objective 3.6 · Hardware
Display Technologies: LCD, LED, OLED, IPS, VA
Objective 3.6 · Hardware
Display Resolutions and Refresh Rates
Objective 3.6 · Hardware
Multi-Monitor Configuration
Objective 3.6 · Hardware
USB Standard Versions: 3.0, 3.1, 3.2, USB4
Objective 3.7 · Hardware
Thunderbolt Standards: TB3, TB4, TB5
Objective 3.7 · Hardware
Printer Technologies: Laser, Inkjet, Thermal, Impact
Objective 3.8 · Hardware
Laser Printer Imaging Process (6 Steps)
Objective 3.8 · Hardware
Inkjet Printer Maintenance and Clogged Nozzles
Objective 3.8 · Hardware
Printer Connection Types: USB, Network, Wireless
Objective 3.8 · Hardware
Scanner and MFD Types
Objective 3.8 · Hardware
KVM Switches
Objective 3.7 · Hardware
Biometric Input Devices
Objective 3.7 · Hardware
BIOS/UEFI Update Procedures
Objective 3.1 · Hardware
Device Driver Installation and Updates
Objective 3.7 · Hardware
12 chapters
Virtualization Concepts and Hypervisors
Objective 4.1 · Virtualization Cloud
Cloud Computing for A+
Objective 4.2 · Virtualization Cloud
Type 1 vs Type 2 Hypervisors
Objective 4.1 · Virtualization Cloud
Virtual Machine Networking Modes
Objective 4.1 · Virtualization Cloud
Virtual Desktop Infrastructure (VDI)
Objective 4.1 · Virtualization Cloud
IaaS, PaaS, SaaS for A+
Objective 4.2 · Virtualization Cloud
Public, Private, Hybrid, Community Cloud
Objective 4.2 · Virtualization Cloud
Cloud Storage: Object, Block, File
Objective 4.2 · Virtualization Cloud
Cloud Sync Tools: OneDrive, Google Drive, iCloud
Objective 4.2 · Virtualization Cloud
Desktop as a Service (DaaS)
Objective 4.2 · Virtualization Cloud
Shared Responsibility Model
Objective 4.2 · Virtualization Cloud
Edge Computing and IoT
Objective 4.2 · Virtualization Cloud
31 chapters
Troubleshoot: PC Hardware Issues
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: Storage and RAID
Objective 5.2 · Hardware Troubleshooting
Troubleshoot: Display and Video Issues
Objective 5.3 · Hardware Troubleshooting
Troubleshoot: Network Connectivity
Objective 5.4 · Hardware Troubleshooting
Troubleshoot: Printer Problems
Objective 5.5 · Hardware Troubleshooting
Troubleshoot: Mobile Device Issues
Objective 5.6 · Hardware Troubleshooting
Troubleshoot: Power and POST Failures
Objective 5.1 · Hardware Troubleshooting
BIOS Beep Codes Interpretation
Objective 5.1 · Hardware Troubleshooting
POST Error Messages
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: Overheating and Thermal Issues
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: CPU Overheating and Failure Signs
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: RAM Symptoms
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: Motherboard Issues
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: Power Supply Issues
Objective 5.1 · Hardware Troubleshooting
S.M.A.R.T. Diagnostics for HDDs and SSDs
Objective 5.2 · Hardware Troubleshooting
Troubleshoot: Hard Drive Failure Signs
Objective 5.2 · Hardware Troubleshooting
Troubleshoot: RAID Array Failure
Objective 5.2 · Hardware Troubleshooting
Troubleshoot: GPU and Video Artifacts
Objective 5.3 · Hardware Troubleshooting
Troubleshoot: Laptop Display Issues
Objective 5.3 · Hardware Troubleshooting
Troubleshoot: Laptop Battery Issues
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: USB Device Issues
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: Bluetooth Pairing Issues
Objective 5.6 · Hardware Troubleshooting
Troubleshoot: Audio Issues
Objective 5.1 · Hardware Troubleshooting
Troubleshoot: Wireless Connectivity Issues
Objective 5.4 · Hardware Troubleshooting
Troubleshoot: DNS Resolution Issues
Objective 5.4 · Hardware Troubleshooting
Troubleshoot: IP Configuration Issues
Objective 5.4 · Hardware Troubleshooting
Troubleshoot: Laser Printer Quality Issues
Objective 5.5 · Hardware Troubleshooting
Troubleshoot: Inkjet Print Quality
Objective 5.5 · Hardware Troubleshooting
ESD Prevention and Handling Procedures
Objective 5.1 · Hardware Troubleshooting
Component Compatibility Checking
Objective 5.1 · Hardware Troubleshooting
Data Migration Methods
Objective 5.2 · Hardware Troubleshooting
Free 220-1101 practice questions with full explanations. Test what you learn chapter by chapter.
220-1101 Practice Questions