問題文
A public site starts returning certificate errors on a Monday morning. The certificate was issued a year ago and nothing else changed. What is the most likely cause and the preventive measure?
選択肢
- The certificate was revoked, which produces the same error and cannot be prevented by any renewal rule that the team might set up in advance.
- The load balancer lost its association with the certificate, and the association is not re-created automatically after a renewal.
- The certificate expired, and rules that renew certificates automatically prevent this class of outage.
- The chain now mixes key algorithm families, because the intermediate certificate of the issuer was reissued with a different algorithm over the weekend and the service therefore rejects the chain.