Question 620
At Lakeside Research, the cybersecurity services team administers FortiGate-based protection for campus labs and private research infrastructure under requirements for identity-aware segmentation and evidence retention. The security reviewer verifies a claimed fix for: A FortiGate IPS scan reports high CPU but administrators cannot distinguish inspection workload from unrelated system processes. Which observed outcome BEST demonstrates that the intended correction works?
Explanation
Correct Answer
The offending workload is identified and CPU falls after a targeted safe sensor adjustment while core IPS checks remain active. This outcome validates the intended correction for: A FortiGate IPS scan reports high CPU but administrators cannot distinguish inspection workload from unrelated system processes. The associated approved corrective action is: Correlate IPS engine resource metrics, relevant session rates and signature processing before tuning the sensor scope. The Lakeside Research reviewer can therefore distinguish observable protection from an untested configuration claim.
Incorrect Answers
A controlled test flow logs a match against the expected deep-inspection policy and a separate bypass path is denied. This would verify a separate corrective action: Correct policy ordering and bind the intended SSL/SSH inspection profile to all applicable approved egress policies. That separate change addresses: A security team enables HTTPS deep inspection in a policy but clients connect around it through a different allow rule with certificate-only inspection. It does not validate the current Lakeside Research issue: A FortiGate IPS scan reports high CPU but administrators cannot distinguish inspection workload from unrelated system processes. The relevant acceptance evidence is: The offending workload is identified and CPU falls after a targeted safe sensor adjustment while core IPS checks remain active.
A managed test browser trusts only the intended enterprise inspection chain and an unexpected origin identity remains blocked or flagged. This would verify a separate corrective action: Use the correct authorized inspection CA for outbound re-signing and preserve verified origin certificate identities in the inspection decision. That separate change addresses: A device mistakenly applies a private corporate CA certificate as the identity for an unrelated public web server during TLS interception. It does not validate the current Lakeside Research issue: A FortiGate IPS scan reports high CPU but administrators cannot distinguish inspection workload from unrelated system processes. The relevant acceptance evidence is: The offending workload is identified and CPU falls after a targeted safe sensor adjustment while core IPS checks remain active.
The test demonstrates correct path-aware evaluation after decryption instead of assuming a certificate-only handshake reveals the path. This would verify a separate corrective action: Confirm whether the requested URL match requires deep SSL inspection and select a supported inspection policy with proper endpoint trust. That separate change addresses: An HTTPS URL filter exception appears ineffective because the firewall matches a certificate-only inspection profile with no decrypted path visibility. It does not validate the current Lakeside Research issue: A FortiGate IPS scan reports high CPU but administrators cannot distinguish inspection workload from unrelated system processes. The relevant acceptance evidence is: The offending workload is identified and CPU falls after a targeted safe sensor adjustment while core IPS checks remain active.