CompTIA · CAS-005
CompTIA SecurityX (formerly CASP+) is an advanced-level cybersecurity certification for senior security engineers and architects that validates the ability to design, implement, and integrate secure solutions across complex enterprise environments. It covers governance, risk, compliance, security architecture, engineering, and operations.
Practice Questions
599
≈ 6 practice exams
Duration
165 minutes
Passing Score
Pass/Fail
Difficulty
ProfessionalLast Updated
Apr 2026
Use this CAS-005 practice exam to prepare for CompTIA SecurityX (CAS-005) with realistic questions, detailed explanations, and focused study modes. The practice bank includes 599 questions for CompTIA CAS-005, so you can review the exam steadily instead of relying on one long cram session.
As you practice, pay extra attention to recurring topics such as Governance, Risk, and Compliance, Security Architecture, Security Engineering, Security Operations, and Cloud and Hybrid Environment Security. Start with short sessions to identify weak areas, then move into timed quizzes once your accuracy is consistent.
The explanations are especially useful when you want to connect exam wording to the responsibilities and scenarios described in the official certification guidance. Use the free preview first, then unlock the full question bank when you are ready to build a complete study routine.
CompTIA SecurityX (CAS-005), launched on December 17, 2024, is the successor to CompTIA CASP+ (CAS-004) and represents the capstone certification in the CompTIA Cybersecurity Career Pathway. It validates advanced technical skills required to conceptualize, engineer, integrate, and implement secure solutions across complex enterprise environments — encompassing security architecture, engineering, operations, and governance, risk, and compliance. The certification is vendor-neutral, ANSI-accredited to ISO 17024 standards, and approved under DoD 8140/8570 as a baseline for IAT Level III, IAM Level II, and IASAE Levels I and II.
Unlike many cybersecurity certifications that focus on managing security programs, SecurityX emphasizes hands-on technical depth. Candidates must demonstrate proficiency in designing hybrid and multi-cloud secure architectures, applying advanced cryptographic technologies, automating security operations, and leading incident response across enterprise-scale environments. The exam also addresses the security implications of emerging technologies such as artificial intelligence, containerization, and CI/CD pipelines.
SecurityX is designed for senior security engineers and security architects who are responsible for designing, implementing, and managing security solutions rather than simply administering them. Ideal candidates typically hold roles such as Security Architect, Senior Security Engineer, Security Operations Lead, Security Integration Engineer, or Systems Requirements Planner.
The certification is also aligned with multiple NICE Cybersecurity Workforce Framework work roles and DoD 8140 positions, making it particularly relevant for professionals in government, defense contracting, and federal agency environments. Candidates should have substantial hands-on experience and be operating at a level where they are making architectural decisions and leading security initiatives, not just executing them.
CompTIA does not enforce formal prerequisites for CAS-005, but recommends a minimum of 10 years of general hands-on IT experience, including at least 5 years of hands-on technical security experience. Candidates are expected to possess knowledge equivalent to CompTIA Network+, Security+, CySA+, Cloud+, and PenTest+ — either through those certifications or equivalent professional experience.
In practice, candidates who attempt SecurityX without a strong foundation in network security, cryptography, cloud infrastructure, and security operations often find the exam extremely challenging. Professionals who have already earned Security+ and CySA+ (or CISSP/equivalent) and are working in senior technical security roles are the most common and well-prepared candidates.
The CAS-005 exam consists of a maximum of 90 questions, delivered in a maximum of 165 minutes. Question types include both multiple-choice and performance-based questions (PBQs), where candidates must interact with simulated environments or scenarios to demonstrate applied skills. The exam is available in English via online proctoring through Pearson VUE's OnVUE platform or at a physical Pearson VUE testing center.
The exam uses a pass/fail grading model — no scaled score is reported. CompTIA does not publish a numeric passing threshold for SecurityX; candidates simply receive a pass or fail result. The certification is valid for three years and can be renewed through CompTIA's Continuing Education (CE) program by earning 75 CEUs within the three-year cycle.
SecurityX holders command some of the highest salaries in the CompTIA certification portfolio. The average reported salary for SecurityX practitioners is approximately $165,000, with security architects and senior security engineers typically earning between $155,000 and $200,000+ depending on sector and geography. The certification's DoD 8140/8570 approval makes it a direct pathway to roles within federal agencies and defense contractors — organizations including General Dynamics, Booz Allen Hamilton, and Leidos actively seek candidates with this credential.
As the capstone of the CompTIA Cybersecurity Career Pathway, SecurityX is positioned above Security+, CySA+, and PenTest+ and signals to employers that a candidate operates at the architect and integrator level rather than the analyst or administrator level. Compared to alternatives like CISSP (which is management-focused) or OSCP (which is offense-focused), SecurityX occupies a distinct niche as a hands-on, vendor-neutral credential validating advanced defensive architecture and engineering skills. Employers in both the public and private sectors — including Target, Ricoh, and Exxon Mobil — recognize the certification for senior technical security hiring.
5 sample questions with answers and explanations. The full bank has 599 questions, enough for 6 full-length practice exams.
Preview — answers shown1. Litware's security engineering team is evaluating AES encryption modes for a new data protection solution. The system processes large volumes of sensitive medical records stored in a database and must provide both data confidentiality and data integrity verification without requiring a separate HMAC computation. Which AES mode should the team select? (Select one!)
Explanation
AES-GCM (Galois/Counter Mode) is the correct choice because it implements Authenticated Encryption with Associated Data (AEAD), providing confidentiality through the Counter mode encryption component and data integrity plus authenticity through the Galois Message Authentication Code (GMAC) component — all in a single cryptographic operation. This eliminates the need for a separate HMAC computation while ensuring any tampering with the ciphertext is detected during decryption. AES-GCM is the standard for TLS 1.3, IPsec, and modern API encryption for precisely this reason. AES-CBC provides only confidentiality — it has no built-in integrity mechanism. A separate HMAC must be computed and verified alongside CBC ciphertext to detect tampering, adding complexity and the risk of implementation errors (e.g., MAC-then-Encrypt vulnerabilities). AES-ECB is cryptographically insecure for any structured data because identical plaintext blocks produce identical ciphertext blocks, revealing patterns — it should never be used for data encryption. AES-CTR provides parallelizable stream cipher confidentiality but, like CBC, has no built-in authentication — integrity must be provided separately.
2. Tailspin Toys is migrating to a cloud-based security architecture to support their globally distributed remote workforce. The architecture must include secure web gateway, firewall-as-a-service, cloud access security broker, zero trust network access, and SD-WAN capabilities delivered from the cloud. What is the difference between SASE and SSE in this context? (Select one!)
Explanation
SASE (Secure Access Service Edge) converges SD-WAN networking capabilities with security services including SWG, CASB, ZTNA, and FWaaS. SSE (Security Service Edge) consists of the same security services as SASE but excludes the SD-WAN networking component, focusing purely on cloud-delivered security. Both are cloud-native and typically incorporate zero trust principles. The key distinction is that SASE combines networking and security while SSE is security-only.
3. Contoso Corporation's security team is conducting a post-incident review after a sophisticated threat actor maintained persistent access to their network for 47 days before detection. The team is analyzing how the adversary evaded detection and establishing metrics to track improvement. Which metric BEST quantifies the detection failure described and what is the industry benchmark for comparison? (Select one!)
Explanation
Dwell time specifically measures the duration between when an attacker first gains access to an environment and when they are detected and removed — this is precisely what the 47-day figure represents in the scenario. The industry average dwell time is approximately 16 days (improving annually as detection capabilities mature), making Contoso's 47-day dwell time approximately three times the industry average. This specific metric directly quantifies the detection failure described and provides meaningful benchmarking context. MTTD (Mean Time to Detect) is a related metric but measures the time from when an indicator becomes detectable to when it is detected — it is a component of the detection process efficiency but is subtly different from dwell time, which measures from initial compromise to final detection. Using MTTD = 47 days is technically imprecise because the 47 days represents the full intrusion timeline from initial access. MTTR (Mean Time to Respond) measures time from detection to resolution — the 47 days in this scenario represents pre-detection dwell time, not post-detection response time. The scenario describes detection failure, not response failure. False Positive Rate measures the percentage of alerts that are not true threats — the scenario provides no information about alert volume or false positive rates. While high false positive rates can mask true threats, the 47-day figure cannot be converted to a false positive percentage.
4. Tailspin is designing their PKI infrastructure for internal certificate management. The security architect needs to implement certificate revocation checking for web services. What is the primary advantage of OCSP Stapling over traditional OCSP for TLS certificate validation? (Select one!)
Explanation
OCSP Stapling improves upon traditional OCSP by having the certificate holder (web server) periodically query the OCSP responder and cache the signed response, then staple it to the TLS handshake. Benefits include reduced client latency (no separate client-to-OCSP-responder connection required), improved privacy (OCSP responder does not learn which certificates clients are checking), and reduced load on OCSP responders. CRLs still serve as fallback. Traditional OCSP exposes client browsing to CA infrastructure.
5. Tailspin is building an AI-powered customer service chatbot using a large language model. During security review, the team identifies risks where attackers could bypass content filters through crafted prompts, cause the model to reveal sensitive training information, and trigger the model to autonomously send emails without user confirmation. Which OWASP LLM Top 10 vulnerabilities must be addressed? (Select three!)
Multiple correct answersExplanation
LLM01 Prompt Injection covers crafted inputs that bypass content filters and manipulate model behavior contrary to intended design. LLM06 Sensitive Information Disclosure addresses the risk of models revealing training data, personal information, or confidential content through responses. LLM08 Excessive Agency addresses models being granted too many capabilities or permissions (like autonomously sending emails) without adequate human oversight and approval controls. LLM02 addresses sanitizing LLM outputs before passing them to downstream systems. LLM03 addresses corrupting training data to influence model behavior. LLM10 addresses protecting the model itself from replication through systematic querying.
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