CompTIA SecurityX — Practice Questions and Mock Exam

CompTIA SecurityX (CAS-005) is an advanced cybersecurity certification for security architects and senior security engineers. It validates the skills needed to design, build, and implement secure solutions across complex environments, support a resilient enterprise, and address governance, risk, and compliance needs. SecurityX covers cloud, on-premises, and hybrid security architecture, advanced cryptography including post-quantum cryptography, automation and scripting for security operations, threat modeling, incident response, and emerging technologies like generative AI in security contexts. It is aligned to NICE and DoD 8140 work roles including security architect, systems requirements planner, and security control assessor.

The SecurityX exam contains a maximum of 90 questions, consisting of a mix of multiple-choice and performance-based questions. Performance-based questions require candidates to solve problems in simulated environments, including command-line scenarios, configuration tasks, and drag-and-drop exercises. The exam duration is 165 minutes. Scoring is pass/fail only with no scaled score reported. The exam is currently available in English only.

Common pitfalls include underestimating the depth of cloud security architecture topics (CASB, shared responsibility, container security), neglecting post-quantum cryptography concepts which are new to CAS-005, insufficient hands-on experience with automation tools like PowerShell, Bash, and Python for security operations, confusing similar frameworks (NIST CSF vs. NIST 800-53 vs. ISO 27001), overlooking threat modeling frameworks like ATT&CK, STRIDE, and CAPEC, weak understanding of zero trust architecture principles, and not practicing performance-based questions that test practical command-line and configuration skills.

SecurityX is delivered via Pearson VUE testing centers and online proctoring. CompTIA recommends a minimum of 10 years of general hands-on IT experience, including 5 years of hands-on security experience, along with knowledge equivalent to Network+, Security+, CySA+, Cloud+, and PenTest+. The certification is valid for 3 years and can be renewed through continuing education (CE) activities requiring 75 CE units over the 3-year period. SecurityX is accredited by ANSI under ISO/IEC 17024. It satisfies DoD 8140 requirements for multiple work roles.