Question 400
A FortiOS 7.6 team examines: A certificate error appears only on unmanaged devices missing the enterprise root CA. Select TWO complementary choices: the most appropriate corrective action AND the specific evidence confirming success.
Explanation
Correct Answers
The reported FortiOS 7.6 condition is: A certificate error appears only on unmanaged devices missing the enterprise root CA. The targeted administrative response is: Diagnose SSL inspection failures using server certificate chain, validity dates, client trust and supported protocol negotiation evidence. The relevant failure risk is: Blanket bypass of certificate validation can conceal expired or untrusted servers and unsafe TLS behavior. Validate with: A test of the target site completes with a validated chain or produces a correctly identified and bounded exception decision.
For the observed situation (A certificate error appears only on unmanaged devices missing the enterprise root CA), the most specific acceptance evidence is: A test of the target site completes with a validated chain or produces a correctly identified and bounded exception decision. It validates the recommended response: Diagnose SSL inspection failures using server certificate chain, validity dates, client trust and supported protocol negotiation evidence. This addresses the documented risk: Blanket bypass of certificate validation can conceal expired or untrusted servers and unsafe TLS behavior.
Incorrect Answers
Flow versus proxy antivirus scan behavior (3.4) addresses another technical failure: Using an incompatible inspection path can disable desired scan behavior or cause unnecessary disruption to large transfers. The case states: A certificate error appears only on unmanaged devices missing the enterprise root CA. The most direct paired action and test is: Diagnose SSL inspection failures using server certificate chain, validity dates, client trust and supported protocol negotiation evidence.
Antivirus scanning profiles on permitted flows (3.4) would demonstrate or implement: Without applied antivirus inspection or fresh signatures, malicious transferred content may not be detected. This choice can be useful for that problem, but it does not establish the Certificate-chain expiry and handshake diagnosis control being assessed here.
Web filtering with certificate-only visibility (3.2) would demonstrate or implement: A controlled HTTPS test demonstrates the rule applies only to attributes observable under the selected inspection level. This case instead tests Certificate-chain expiry and handshake diagnosis; the choice measures or changes another part of the system.