Question 160
After a corrective change at a hospital campus, the team documents: An administrator uses a broad decryption bypass as a workaround for a TLS handshake error without confirming the server certificate chain. Which repeatable control BEST prevents a recurrence?
Explanation
Correct Answer
Triage certificate, profile and Decryption-policy fields before adding exceptions. This control reduces recurrence of the documented mechanism: TLS negotiation faults have specific causes not necessarily fixed by Security policy edits. It creates a repeatable check around the needed response: Inspect Decryption logs and certificate verification to correct the narrow trust or compatibility fault.
Incorrect Answers
Compare effective local values with the central baseline after each emergency fix. That safeguard addresses another potential failure: An administrator edits a firewall's DNS setting directly on the device, but the next SCM push restores the old value and name resolution fails again. It is not the most targeted recurring control for the described cause: TLS negotiation faults have specific causes not necessarily fixed by Security policy edits.
Monitor NTP reachability and time offset on managed firewalls. That safeguard addresses another potential failure: A managed firewall displays the wrong time and rejects certificate-based cloud connections after its NTP service becomes unavailable. It is not the most targeted recurring control for the described cause: TLS negotiation faults have specific causes not necessarily fixed by Security policy edits.
Require NAT and return-path verification in ISP migration closeout. That safeguard addresses another potential failure: After an ISP change, outbound sessions fail but a Security log shows the proper allow rule and application, so the analyst keeps changing App-ID settings. It is not the most targeted recurring control for the described cause: TLS negotiation faults have specific causes not necessarily fixed by Security policy edits.