CAS-004 Security Architecture Practice Question
A security architect is designing a zero-trust architecture for a multi-cloud environment. Which principle is essential for enforcing identity-centric micro-segmentation?
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
✓
Identity-based access policies
In a zero-trust model, identity is the primary security boundary. Micro-segmentation uses identity and context to enforce least-privilege access, regardless of network 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.
- ✓
Identity-based access policies
Why this is correct
Identity-centric micro-segmentation relies on identity and attributes for granular access control.
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VPN concentrators
Why it's wrong here
VPNs are traditionally perimeter-based; zero trust uses software-defined perimeters instead.
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Network address translation
Why it's wrong here
NAT is not a zero-trust principle.
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Perimeter firewalls
Why it's wrong here
Zero trust rejects reliance on perimeter security.
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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.