Question 430
An internal API returns a certificate for another hostname after a load-balancer migration. Before changing security policy, what evidence should the engineer examine FIRST?
Explanation
Correct Answer
Inspect server certificate SAN, chain trust, expiry and revocation status, negotiated protocol, and handshake errors. This checks the relevant condition before an engineer modifies production access or detection behavior. Encryption without authenticated identity does not rule out interception; certificates bind a public key to a verified name under a trust chain. The controlled response would be: Validate peer identity with a trusted certificate chain, correct hostname, certificate validity, and appropriate TLS policy before exchanging sensitive data. Situation: An internal API returns a certificate for another hostname after a load-balancer migration.
Incorrect Answers
Inspect existing policy objects, API conflict or retry responses, object identifiers, approvals, and rollback artifacts. This evidence addresses Idempotent policy automation and rollback; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect server certificate SAN, chain trust, expiry and revocation status, negotiated protocol, and handshake errors. Situation: An internal API returns a certificate for another hostname after a load-balancer migration.
Inspect IKE proposal mismatches, pre-shared or certificate identity, UDP 500 or 4500 reachability, NAT detection, and phase negotiation logs. This evidence addresses IPsec IKE and NAT traversal; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect server certificate SAN, chain trust, expiry and revocation status, negotiated protocol, and handshake errors. Situation: An internal API returns a certificate for another hostname after a load-balancer migration.
Inspect sign-in strength, device compliance, resource policy, segmentation, session risk, and reevaluation triggers. This evidence addresses Zero trust continuous authorization; it would not establish the primary issue here. The diagnostic evidence needed for this scenario is: Inspect server certificate SAN, chain trust, expiry and revocation status, negotiated protocol, and handshake errors. Situation: An internal API returns a certificate for another hostname after a load-balancer migration.


