Master CompTIA Certifications with 5,000+ Free Practice Questions

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Covering A+, CySA+, Security+, Network+, Linux+, PenTest+, SecurityX, and more.

ProfTIA gives you free CompTIA practice exams built from 5,000+ practice questions with detailed explanations for every answer. Take a Security+ SY0-701 practice exam, drill Network+ N10-009 practice questions, run a CySA+ CS0-003 practice test, or start an A+ 220-1201 mock exam — all in your browser, with no signup and no paywall.

Every realistic mock exam mirrors the format, difficulty, and objective coverage of the real CompTIA test, so you can find weak domains early and walk into exam day knowing what to expect.

Not sure where to start? Take our 60-second quiz to find the right certification  ·  Build a week-by-week study plan →

Popular A+

A+ (220-1201)

Core IT support skills
Validate your hardware, software, OS, and troubleshooting skills.
A+

A+ (220-1202)

Core IT support skills
Validate your hardware, software, OS, and troubleshooting skills.
CySA+

CySA+ (CS0-003)

Threat Detection
Master threat detection, vulnerability analysis, and incident response.
Popular Network+

Network+ (N10-009)

Networking fundamentals
Learn networking protocols, troubleshooting, and infrastructure design.
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Network+ Acronyms

Network+ Acronyms

Acronyms & Ports
Master essential acronyms and port numbers for the exam.
📶
Network+ OSI

Network+ OSI Model

Layers & Protocols
Master the 7 layers of the OSI model and their functions.
Popular Security+

Security+ (SY0-701)

Security + risk management
Covers network security, identity management, and risk mitigation.
🔡
Security+ Acronyms

Security+ Acronyms

Acronyms & Terms
Master essential acronyms for the Security+ SY0-701 exam.
New SecAI+

SecAI+ (CY0-001)

AI Security & Governance
Covers AI threats, LLM security, prompt injection, and AI governance frameworks.
Tech+

CompTIA Tech+

IT Fundamentals
Covers foundational IT concepts, software, hardware, troubleshooting, and security basics.
Linux+

Linux+ (XK0-006)

Linux skills
Test your knowledge of Linux administration, CLI tools, and scripting.
PenTest+

PenTest+ (PT0-003)

Ethical hacking skills
Practice ethical hacking, pen testing, and vulnerability management.
Cloud Essentials+

Cloud Essentials+

Cloud computing basics
Understand cloud concepts, governance, and cloud computing basics.
SecurityX

SecurityX (CAS-005)

Enterprise security
Advanced cybersecurity for enterprise architecture and risk management.

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A+ CySA+ Security+ Network+ Linux+ PenTest+ SecurityX
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Always Up-to-Date: Our practice tests align with the latest CompTIA objectives including CS0-003, SY0-701, N10-009, 220-1202, and more.

Who writes the questions? Every question and explanation on ProfTIA is an original work written and maintained by the site's IT-practitioner team, mapped directly to the published CompTIA exam objectives. Questions are revised continuously based on objective updates and learner feedback submitted through the quizzes.

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What Learners Say

Frequently Asked Questions

How can I practice for the CompTIA CySA+ exam?

You can take our free CySA+ practice quiz online. It includes real exam-style questions with instant feedback and no registration required.

Do I need to sign up to take the quizzes?

No sign-up is needed. All quizzes on our site are 100% free and open to everyone.

What certifications do you offer quizzes for?

We offer free practice quizzes for CompTIA certifications including CySA+, Security+, Network+, PenTest+, Linux+, and A+.

Are the questions similar to the real CompTIA exams?

Yes! Our questions are designed to simulate the format and difficulty of the actual CompTIA exams, helping you prepare effectively.

Can I track my quiz progress?

Yes, your quiz progress is automatically saved locally, so you can resume at any time without losing your progress.

Why should I get a CompTIA certification?

CompTIA certifications are globally recognized and vendor-neutral, making them valuable for IT professionals across various industries. They validate your skills and knowledge, helping you stand out in the job market.

How can I prepare for CompTIA exams?

You can prepare for CompTIA exams by using practice quizzes, study guides, and official training materials. Our free practice quizzes are designed to simulate real exam scenarios and help you assess your readiness.

Are these quizzes updated to reflect the latest exam objectives?

Yes, our quizzes are regularly updated to align with the latest CompTIA exam objectives, ensuring you practice with the most relevant content.

Can I use these quizzes on mobile devices?

Yes, our quizzes are mobile-friendly and can be accessed on any device, including smartphones and tablets.

Do these quizzes include explanations for the answers?

Yes, each question includes detailed explanations to help you understand the correct answers and improve your knowledge.