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