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Which of the following protocols is used to validate wh…

Which of the following protocols is used to validate whether trust is in place and accurate by returningresponses of either “good”, “unknown”, or “revoked”?

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A.
CRL

B.
PKI

C.
OCSP

D.
RA

Explanation:
The Online Certificate Status Protocol (OCSP) is an Internet protocol used for obtaining the revocation status of
an X.509 digital certificate.
An OCSP responder (a server typically run by the certificate issuer) may return a signed response signifying
that the certificate specified in the request is ‘good’, ‘revoked’, or ‘unknown’. If it cannot process the request, it
may return an error code.


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