COMPTIA Study Guide 2026

Everything you need to pass the COMPTIA exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

📋 COMPTIA Exam Format at a Glance

Questions

90 min

Time Limit

67%

Passing Score

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📚 COMPTIA Topics to Study (151)

Hardware Practice · 18 cards Networking Practice · 18 cards Networking Practice · 18 cards Networking Practice · 18 cards Operational Procedure · 18 cards Operational Procedure · 18 cards Practice Test Hardware · 18 cards Software Troubleshooting Practice · 18 cards Software Troubleshooting Practice · 18 cards Software Troubleshooting Practice · 18 cards Cloud Computing Fundamentals · 7 cards Cloud Computing Fundamentals · 7 cards Cloud Computing Fundamentals · 7 cards Hardware Practice · 7 cards Hardware Practice · 7 cards Hardware Practice · 7 cards Hardware Practice · 7 cards ITF Applications and Software · 7 cards ITF Applications and Software · 7 cards ITF Applications and Software · 7 cards ITF Applications and Software · 7 cards ITF Concepts and Terminology · 7 cards ITF Concepts and Terminology · 7 cards ITF Concepts and Terminology · 7 cards ITF Concepts and Terminology · 7 cards ITF+ Information Security Principles · 7 cards ITF+ Information Security Principles · 7 cards ITF+ Information Security Principles · 7 cards ITF+ Information Security Principles · 7 cards ITF Infrastructure · 7 cards

See all 151 topics as flashcards →

✍️ Sample COMPTIA Questions & Answers

1. Which feature of WPA3-Personal provides forward secrecy, ensuring past session traffic cannot be decrypted even if the passphrase is later compromised?

✓ SAE with perfect forward secrecy

WPA3-SAE generates a unique session key for every connection, so compromising the passphrase later cannot decrypt previously recorded traffic.

2. Which protocol does 802.11ax use to allow multiple clients to transmit UPLINK data to the AP simultaneously, a capability not present in 802.11ac?

✓ UL OFDMA and UL MU-MIMO

Wi-Fi 6 introduced both Uplink OFDMA and Uplink MU-MIMO, allowing multiple clients to send data to the AP simultaneously, unlike 802.11ac which only supported downlink MU-MIMO.

3. A /25 subnet is applied to the 10.0.0.0 network. How many usable host addresses are available?

✓ 126

A /25 subnet has 128 total addresses; subtracting the network and broadcast addresses leaves 126 usable host IPs.

4. A technician uses the divide-and-conquer troubleshooting method. On which OSI layer does this approach typically begin?

✓ Layer 3 – Network

Divide and conquer typically starts at Layer 3 (Network) by testing IP connectivity, then moves up or down based on results.

5. Which step of the CompTIA troubleshooting methodology involves asking the user 'What changed recently?'

✓ Identify the problem

Identifying the problem includes gathering information from users, which includes asking about recent changes that may have triggered the issue.

6. Which power supply specification describes its efficiency at converting AC input to DC output?

✓ 80 Plus certification

80 Plus certification levels (Bronze, Silver, Gold, Platinum, Titanium) indicate the PSU's AC-to-DC conversion efficiency at various load levels.

🎯 Free COMPTIA Practice Tests

Networking Practice · 18 questions Operational Procedure · 18 questions Networking Practice · 18 questions Practice Test Hardware · 18 questions Software Troubleshooting Practice · 18 questions Hardware Practice · 18 questions Operational Procedure · 18 questions Networking Practice · 18 questions Software Troubleshooting Practice · 18 questions Software Troubleshooting Practice · 18 questions

📖 COMPTIA Guides & Articles

Your COMPTIA Study Path

1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation

🃏 COMPTIA Flashcards (1,119)🏆 COMPTIA Exam Simulation

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