CAS-004 Security Architecture Practice Question
A security architect is designing a public key infrastructure (PKI). Which component is responsible for issuing and revoking certificates?
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
✓
Certificate Authority
The Certificate Authority (CA) is the trusted entity that issues digital certificates and maintains Certificate Revocation Lists (CRLs) or supports OCSP for revocation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Validation Authority
Why it's wrong here
VA validates certificate status, does not issue.
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Certificate Repository
Why it's wrong here
Repository stores certificates and CRLs.
- ✗
Registration Authority
Why it's wrong here
RA verifies identity but does not issue certificates.
- ✓
Certificate Authority
Why this is correct
CA issues and revokes certificates.
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JA
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.