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Question 51 - CAS-004 discussion

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A security architect works for a manufacturing organization that has many different branch offices. The architect is looking for a way to reduce traffic and ensure the branch offices receive the latest copy of revoked certificates issued by the CA at the organization's headquarters location. The solution must also have the lowest power requirement on the CA.

Which of the following is the BEST solution?

A.
Deploy an RA on each branch office.
Answers
A.
Deploy an RA on each branch office.
B.
Use Delta CRLs at the branches.
Answers
B.
Use Delta CRLs at the branches.
C.
Configure clients to use OCSP.
Answers
C.
Configure clients to use OCSP.
D.
Send the new CRLs by using GPO.
Answers
D.
Send the new CRLs by using GPO.
Suggested answer: C

Explanation:

OCSP (Online Certificate Status Protocol) is a protocol that allows clients to check the revocation status of certificates in real time by querying an OCSP responder server. This would enable the organization to determine whether it is vulnerable to the active campaign utilizing a specific vulnerability, as it would show if any certificates have been compromised or revoked. Deploying an RA (registration authority) on each branch office may not help with checking the revocation status of certificates, as an RA is responsible for verifying the identity of certificate applicants, not issuing or revoking certificates. Using Delta CRLs (certificate revocation lists) at the branches may not provide timely or accurate information on certificate revocation status, as CRLs are updated periodically and may not reflect the latest changes. Implementing an inbound BGP (Border Gateway Protocol) prefix list may not help with checking the revocation status of certificates, as BGP is a protocol for routing network traffic between autonomous systems, not verifying certificates. Verified

Reference: https://www.comptia.org/blog/what-is-ocsp https://partners.comptia.org/docs/default-source/resources/casp-content-guide

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asked 02/10/2024
Spandana Gangavaram
32 questions
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