Best CompTIA Study Resources

How do you choose study resources for your learning style?

The resources above are all proven, but the right combination depends on how you actually retain information. Buying the most popular book won’t help if you don’t learn well from reading. Match the format to the way your brain works, then blend two or three formats so each one reinforces the others.

If you learn by watching, start with video. Professor Messer’s free courses and Jason Dion’s Udemy courses walk through every objective visually, which suits hardware, networking, and architecture topics that are easier to see than to read about. You can pause, rewind, and watch a tricky concept twice.

If you learn by reading, a study guide gives you depth and a reference you can return to. The Sybex guides for Network+ and Security+ and the Walker Bridge or All-in-One books for A+ let you work at your own pace and annotate as you go. Readers tend to retain more from a structured book than from passively watching hours of video.

If you learn by doing, build a home lab and prioritize performance-based question (PBQ) practice. Setting up a virtual machine, configuring a network, or running command-line tools turns abstract objectives into muscle memory and makes the simulation questions on exam day far less intimidating.

If you retain best through repetition, flashcards with spaced repetition are ideal for the memory-heavy material every CompTIA exam includes — port numbers, protocols, acronyms, and definitions. Spaced repetition shows you a card just before you’re likely to forget it, which is far more efficient than re-reading notes.

Should you use free or paid CompTIA study resources?

You don’t have to choose — the smart approach uses both, in sequence. The free and paid resources on this page do different jobs, and the order you use them in matters more than how much you spend.

Start free, to learn. Professor Messer’s video courses cover every exam objective for A+, Network+, and Security+ at no cost, and thousands of candidates have passed using them as their primary learning resource. There’s no reason to spend money before you’ve built a foundation, and the free material is genuinely complete rather than a teaser for a paid upsell.

Then pay where it pays off — practice exams. The single highest-value purchase for most candidates is a set of realistic practice exams. Dion Training’s tests are the most recommended because they teach you how CompTIA asks questions — scenario wording, distractor patterns, and PBQ formats — which is a different skill from knowing the facts. If you’ve studied but keep scoring in the 70s on practice tests, this is usually the missing piece.

Add a paid study guide only if you want more depth than video gives you, or if you simply prefer reading. A book is a worthwhile complement, not a requirement. What you should avoid is buying three overlapping courses you’ll never finish — one solid learning resource plus good practice exams beats a shelf of half-used materials.

How much should you budget for CompTIA study materials?

You can prepare thoroughly for well under $40 in study materials. The cost that dwarfs everything else is the exam voucher itself, which is why spending a little to pass on the first attempt is the cheapest path overall.

The free path costs $0 for learning: Professor Messer’s videos plus free reference articles. Practice exams run roughly $30–$40 per certification from Dion Training and are the purchase most first-time passers credit. A printed study guide adds about $30–$60 depending on the title. Udemy video courses are frequently discounted to $15–$20 when they’re on sale — never pay full list price, as Udemy runs sales constantly. CertFlash is free for the A+ deck, with a one-time $5.99 unlock for the other certs.

A realistic budget for one certification is therefore around $30–$70 in materials — or $0 if you go fully free with Messer and free practice questions. Compared to the cost of re-sitting a failed exam, a quality set of practice tests is the easiest money you’ll spend.

What are the most common CompTIA study mistakes?

Relying on brain dumps. Leaked “exam questions” are tempting but counterproductive: CompTIA refreshes its question pool, dumps are frequently inaccurate, and passing without understanding leaves you unable to do the job. Use legitimate practice exams instead.

Skipping practice exams. Reading or watching teaches the material, but it doesn’t train you for the exam’s scenario format. Candidates who only study content and never drill realistic questions are routinely surprised by how the test asks things.

Buying too many resources. Three overlapping courses you never finish are worse than one you complete. Pick a primary learning resource, add practice exams, and go deep rather than wide.

Ignoring performance-based questions. PBQs appear early and eat time. If the first time you see one is on exam day, you’ll lose momentum. Practice them deliberately beforehand.

Booking the exam too early. The most common retake story is “I felt ready and failed by a few points.” Don’t schedule your exam until you’re consistently scoring well above the passing line on fresh practice tests — not the same questions repeated.