Best CASP+ / SecurityX practice tests in 2026 (an honest comparison)
Quick note before anything else: if you're searching "CASP+," you're now looking for CompTIA SecurityX — same advanced certification, new name, current exam code CAS-005. The short version on practice tests: Jason Dion's Udemy course and practice exams are the most-used third-party option, CompTIA CertMaster Practice + Labs is the most exam-aligned official option, and the overall practice-test market here is much thinner than for entry-level certs.
We build SecurityX prep ourselves, so weigh our own entry accordingly — the rest is an honest rundown of what's actually available for this advanced exam, and who each option is genuinely best for.
Quick comparison
| Tool | Best for | Price (approx.) |
|---|---|---|
| Jason Dion (Udemy) | Most widely used third-party option | ~$15–20 on sale |
| CompTIA CertMaster Practice/Labs | Official, most exam-aligned | ~$200–400 (bundles) |
| CrushCert | Adaptive practice + hands-on labs | From $15 / mo |
1. Jason Dion (Udemy)
MOST WIDELY USEDJason Dion's SecurityX (CAS-005) complete course and separate six-exam practice pack are the most commonly recommended third-party resources for this exam, built to mirror the real test's structure and difficulty. Both are usually around $15–20 on a Udemy sale, with Dion Training also selling them direct.
Best for: the most accessible, affordable practice option for an advanced exam. Trade-off: as with any single-author bank, treat it as one input rather than your only source at this level.
2. CompTIA CertMaster Practice & Labs
MOST EXAM-ALIGNEDCompTIA's own CertMaster Practice adapts to your gaps against the official CAS-005 objectives, and CertMaster Labs gives you hands-on exercises for the enterprise security-architecture and engineering tasks the exam expects you to reason through. Because it's built by the exam vendor, it tracks the objectives most closely — typically sold in bundles with Learn courseware, often $200–400+.
Best for: candidates who want official-source confidence at the master level. Trade-off: the highest price point on this list, and less useful without the surrounding Learn material.
3. CrushCert
LABS + ADAPTIVEThat's us. CrushCert offers an adaptive question bank plus hands-on labs and full timed mock exams, with a readiness score, from $15/month and a 7-day free trial. Worth saying plainly: coverage depth for an advanced, lower-volume exam like CAS-005 is inherently thinner across every provider — us included — than for high-volume entry certs. Here's CrushCert's CASP+ / SecurityX prep.
Best for: adaptive practice plus hands-on reps alongside your primary course. Trade-off: at this advanced level, no single tool — from any provider — should be your only prep source.
Our honest recommendation
Because the CAS-005 practice-test market is thin, lean more heavily on the official objectives and CertMaster Labs for hands-on architecture scenarios, use Jason Dion's course and practice exams as your main third-party question source, and add an adaptive bank plus labs (where CrushCert fits) for extra spaced repetition. If you're not sure SecurityX is even the right next step, read our honest take on whether CASP+ / SecurityX is worth it first.
Try the adaptive + labs piece free
Adaptive CASP+ / SecurityX quizzes, hands-on labs, and full timed mock exams — 7-day free trial, no card required.
See CrushCert's CASP+ / SecurityX prep →Frequently asked questions
Is CASP+ the same thing as SecurityX?
Yes. CompTIA renamed CASP+ to CompTIA SecurityX effective December 17, 2024, alongside the launch of the CAS-005 exam version. It's the same advanced, master-level certification under a new name — existing CASP+ holders keep their certification status.
What is the best CASP+ / SecurityX practice test?
Jason Dion's Udemy course and practice exams are the most widely used third-party option for CAS-005, and CompTIA's own CertMaster Practice and Labs is the most exam-aligned official option. Compared to entry-level certs like Security+, the practice-test market for this advanced exam is much thinner — CrushCert adds adaptive practice plus hands-on labs as another option.
Are CASP+ / SecurityX brain dumps safe to use?
No. Brain dumps (leaked real exam questions) violate the CompTIA Candidate Agreement and can get your certification revoked — a real risk at the master level where employers and DoD sponsors take integrity violations seriously. Use legitimate practice tests with explanations instead.
How hard is it to find good CAS-005 practice questions?
Harder than for Security+ or CySA+. CAS-005 is a lower-volume, advanced exam, so fewer providers maintain large, current question banks for it. Stick to a small number of reputable sources (Dion, CompTIA CertMaster) rather than searching out obscure dump sites.