Free CompTIA A+ Study Guide
Browse the full A+ Core 1 and Core 2 study path by module. All public lesson content is free; the app adds saved progress, quizzes, tests, weak-area practice, and performance history.
Guide stats
- Exam
- 220-1201 / 220-1202
- Updated
- 6/10/2026
- Modules
- 9
- Topics
- 58
- Lessons
- 316
How the study path is structured
Certification
A+
Module
Domain area
Topic
Subject group
Lesson
Study unit
A+ modules
Start at the beginning or jump into the domain you need. Each module links to its topics and lessons.
Mobile Devices
Laptop hardware, mobile accessories, wireless connectivity, synchronization, and mobile support tasks.
Networking
Ports, protocols, wireless standards, network services, configuration concepts, devices, and SOHO support.
Hardware
Displays, cables, RAM, storage, motherboards, processors, power, cooling, printers, and multifunction devices.
Virtualization and Cloud Computing
Virtualization fundamentals, client-side virtualization, cloud models, cloud services, file sync, and cloud traits.
Hardware and Network Troubleshooting
Troubleshooting symptoms for motherboards, CPUs, RAM, power, drives, displays, mobile devices, networks, and printers.
Operating Systems
Operating system types, Windows installation and upgrade paths, tools, settings, networking, macOS, Linux, and applications.
Security
Security controls, identity, Windows security, wireless security, malware, social engineering, hardening, mobile security, and data disposal.
Software Troubleshooting
Windows boot, stability, performance, services, applications, updates, mobile OS issues, and security symptom recognition.
Operational Procedures
Documentation, asset management, change management, backup, safety, incident response, privacy, licensing, professionalism, remote access, scripting, and AI use.
A+ exam prep articles
Review focused explanations and comparisons for commonly searched exam topics.
TCP vs UDP for CompTIA A+: When to Use Each
Learn TCP vs UDP for CompTIA A+, including reliability, speed, DNS, NTP, remote access, file transfer, and exam scenario cues.
2.4 GHz vs 5 GHz Wi-Fi for CompTIA A+
Compare 2.4 GHz and 5 GHz Wi-Fi for CompTIA A+, including range, interference, throughput, compatibility, and common exam cues.
HDD vs SSD for CompTIA A+: Speed, Cost, and Use Cases
Compare HDDs and SSDs for CompTIA A+, including speed, cost, durability, noise, heat, capacity, and common support scenarios.
What's free and what's in the app
Free on this site
- All A+ lesson content
- Module and topic study pages
- Sample practice questions with explanations
- Score and explanations on quick practice tests
App adds
- Saved progress and session history
- Unlimited custom practice tests
- Targeted weak-area remediation paths
- Practice analytics and performance history
Ready to start?
Jump into Lesson 1 for free, or take a practice test to see where you stand today.