Free CompTIA A+ Certification Practice Test
Realistic 50-question practice exam with instant feedback and score reports.
Pre-built exam — starts in seconds.
About this practice exam
Free CompTIA A+ Certification practice test with 50 realistic multiple-choice questions, instant grading, and explanations. Study with drill mode, category score reports, and a personalized review plan.
Exam format
- 50 multiple-choice practice questions
- Drill mode with instant feedback and explanations after each answer
- Category score reports every 15 questions
What's on the exam
This practice test mirrors the weighted categories on the real CompTIA A+ exam:
| Category | Weight |
|---|---|
| Hardware | 25% |
| Networking | 20% |
| Mobile Devices | 12% |
| Hardware and Network Troubleshooting | 23% |
| Security and Operational Procedures | 20% |
Study tips
- Review the official exam content outline before your first practice run.
- Take the full practice exam once to establish a baseline score by category.
- Focus review on categories where you score below the passing threshold.
- Re-take missed questions in drill mode until you can explain each correct answer.
- Schedule the real exam only after consistent passing scores on practice tests.
Sample CompTIA A+ practice questions
Try a few representative questions below. Each includes the correct answer and a short explanation — the same style you'll see in the full practice test.
- Question 1Hardware
A technician needs the fastest internal storage upgrade for a laptop with an open M.2 slot that supports NVMe. Which drive type should they select?
- A.2.5-inch SATA SSD
- B.M.2 SATA SSD
- C.M.2 NVMe PCIe SSD(Correct)
- D.USB 3.2 external hard drive
Explanation
NVMe over PCIe offers much higher throughput than SATA-based SSDs. For an M.2 slot that supports NVMe, that is the appropriate high-performance choice.
- Question 2Networking
Which TCP/IP port is commonly used for HTTPS web traffic?
- A.21
- B.25
- C.443(Correct)
- D.3389
Explanation
HTTPS uses port 443 by default. Port 21 is FTP, 25 is SMTP, and 3389 is RDP — common distractors on CompTIA A+ networking questions.
- Question 3Troubleshooting
A user reports intermittent Wi-Fi drops only in one conference room. Other areas are fine. What should be checked first?
- A.Reinstall the operating system
- B.Signal strength, access point placement, and interference in that room(Correct)
- C.Replace the laptop battery
- D.Disable the firewall on all company servers
Explanation
Location-specific wireless issues usually involve RF coverage, channel overlap, or interference — not OS reinstalls. Start with site survey basics before drastic changes.
Want the full exam? Start the free practice test →
Frequently asked questions
How many questions are on this CompTIA A+ practice test?
This practice test includes 50 multiple-choice questions designed to mirror the format and difficulty of the real CompTIA A+ Certification.
Is this CompTIA A+ practice test free?
Yes. You can start practicing for free. Create an account to save progress, track weak categories, and retake the exam.
Do I get explanations after each question?
Yes. In drill mode you see why the correct answer is right, why distractors are wrong, and practical examples where relevant.
How should I use this practice test to prepare?
Take the full exam under timed conditions, review missed questions by category, then focus study on your weakest sections before scheduling the real exam.
Does this replace official exam materials?
No. Use this as a supplement alongside official candidate information bulletins, textbooks, and hands-on experience required for your license or certification.
Related practice tests
Ready to test your knowledge?
Free 50-question practice exam — no sign-up required to try.