CAS-004 Security Engineering Practice Question
A PKI administrator is concerned about the risk of a compromised issuing CA. Which certificate transparency feature helps detect unauthorized certificate issuance?
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 Transparency logs
Certificate Transparency (CT) requires all certificates to be publicly logged in CT logs. This allows domain owners and CAs to monitor for misissuance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Certificate Transparency logs
Why this is correct
CT logs enable public auditing of certificate issuance.
- ✗
CRL distribution points
Why it's wrong here
CRLs list revoked certificates, not newly issued ones.
- ✗
OCSP stapling
Why it's wrong here
OCSP stapling provides real-time revocation status, but does not detect unauthorized issuance.
- ✗
Key usage extensions
Why it's wrong here
Key usage defines the purpose of the key, not detection of misissuance.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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