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A client presents a certificate to a web server at logon. The server determines that the certificate hasn't expired. What service will the server use to verify that the certificate has not been revoked?
OCSP
SNMP
TLS 1.1
OSPF
The Online Certificate Status Protocol (OCSP) is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate. It is described in RFC 6960 and is on the Internet standards track. ***There is no need to use OCSP to check to see if a certificate has expired. The server just need to check the ValidTo field of the certificate. **** the previous note edited by someone is incorrect as the validto date could be in the future but the system that owns the cert could be decommissioned prior requiring the cert to be put on the CRL as it is no longer acceptable...
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