CAS-004 Security Architecture Practice Question
An organization is adopting a SASE architecture to provide secure access to cloud applications. Which component is essential for enforcing security policies based on user identity and device posture?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Zero Trust Network Access (ZTNA)
SASE converges networking and security functions, with the Security Service Edge (SSE) component including SWG, CASB, ZTNA, and FWaaS. While CASB focuses on data security and compliance for cloud applications, ZTNA is the component specifically designed to enforce security policies based on user identity and device posture, providing granular access control regardless of location.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Zero Trust Network Access (ZTNA)
Why this is correct
ZTNA enforces access based on user identity, device posture, and context, aligning with zero trust principles.
- ✗
Firewall as a Service (FWaaS)
Why it's wrong here
FWaaS provides next-gen firewall capabilities in the cloud, but not identity-centric access control.
- ✗
Secure Web Gateway (SWG)
Why it's wrong here
SWG filters web traffic and enforces acceptable use policies, but not specifically identity-based access.
- ✗
Cloud Access Security Broker (CASB)
Why it's wrong here
CASB provides visibility and control over sanctioned and unsanctioned cloud apps, but not primarily identity/device posture enforcement.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CAS-005 exam.