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Public Key Infrastructure (PKI) provides authentication, confidentiality, integrity and (asymmetric) encryption for an organization's information systems. The certificate authority signs the certificates, and also provides a Certificate Revocation List. A certificate revocation list should have a life expectancy of roughly?
30 calendar days
365 days
24 hours or less
2 years
The correct answer is 24 hours or less. A certificate revocation list contains a number of possible reasons for revoking a certificate. The most common being that the private key for the owner of the certificate is no longer safe and most certificate revocation lists have a life expectancy of 24 hours or less.
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