CompTIA A+ Study Guide (220-1101)

Free Resources & In-Depth Practice

Prepare for the CompTIA A+ Core 1 (220-1101) exam with our domain-based guide. Master essential topics including mobile devices, networking, hardware, cloud computing, and troubleshooting. Access free resources and practice quizzes to boost your confidence.

Domain 1: Mobile Devices

Learn to install, configure, and troubleshoot laptops, tablets, and smartphones. This domain covers essential skills for managing mobile devices in both personal and enterprise environments.

  • Device Configuration: OS setup, email, apps.
  • Hardware Components: Batteries, screens, keyboards.
  • Wireless Connectivity: Wi-Fi, Bluetooth, Cellular.
  • Security Features: Biometrics, remote wipe, encryption.
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Domain 2: Networking

Gain a solid understanding of networking concepts, protocols, and configurations for SOHO environments.

  • Networking Basics: IP addressing, subnets, gateways.
  • Protocols and Ports: TCP/IP, DNS, DHCP.
  • Network Devices: Routers, switches, APs, firewalls.
  • SOHO Configurations: Secure wireless, SSIDs, encryption.
  • Troubleshooting Tools: Ping, traceroute, ipconfig.
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Domain 3: Hardware

Identify, install, and configure various hardware components and peripherals to build, maintain, and troubleshoot computer systems.

  • PC Components: Motherboards, CPUs, RAM, GPUs.
  • Storage Devices: HDDs, SSDs, NVMe, RAID.
  • Peripheral Connections: USB, Thunderbolt, HDMI.
  • Printers and Scanners: Installation, troubleshooting.
  • Power Supplies: Selection and installation.
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Domain 4: Virtualization & Cloud

Understand virtualization technologies and cloud service models, and their practical applications.

  • Virtualization: VMs, hypervisors (VMware, Hyper-V).
  • Cloud Computing: IaaS, PaaS, SaaS models.
  • Deployment Models: Public, private, hybrid, community.
  • Client-Side Virtualization: Running multiple OS on one device.
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Domain 5: Troubleshooting

Apply systematic approaches to diagnose and resolve issues with hardware, mobile devices, printers, and networks.

  • Hardware Issues: Motherboards, RAM, storage, PSUs.
  • Mobile Device Problems: App crashes, connectivity, battery.
  • Printer/Scanner Fixes: Jams, errors, print quality.
  • Network Diagnostics: Ping, traceroute, DNS, IP config.
  • Systematic Approach: CompTIA troubleshooting model.
Explore Domain 5 →

🎓 Test Your A+ Knowledge!

Ready to put your learning into practice? Try our free A+ practice quiz with real-world questions meticulously crafted based on the 220-1101 exam objectives.

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CompTIA A+ Study Guide FAQ

What topics are covered in the CompTIA A+ 220-1101 exam?
The 220-1101 exam covers mobile devices, networking, hardware, virtualization, cloud computing, and troubleshooting.
Is this A+ study guide free?
Yes, all resources and practice quizzes on this page are completely free.
How can I best prepare for the CompTIA A+ exam?
Use this guide to review each domain, take practice quizzes, and explore linked resources for deeper learning.
Are there practice questions for each domain?
Yes, each domain section links to practice quizzes and detailed study resources.