Question 490
A newly built IPS sensor uses an action of monitor for critical signatures and management incorrectly assumes every detected exploit was blocked. Which observable result BEST demonstrates that the intended FortiGate security or connectivity requirement is satisfied?
Explanation
Correct Answer
A controlled benign exploit simulation triggers the expected IPS action while legitimate application transactions continue under tested exclusions. This is the operational validation outcome rather than merely an enabled setting. Signature severity alone does not guarantee relevance; a disabled or monitor-only IPS rule may log threats without blocking, and encrypted payloads need appropriate inspection. Scenario: A newly built IPS sensor uses an action of monitor for critical signatures and management incorrectly assumes every detected exploit was blocked.
Incorrect Answers
The selected IPS policy blocks intended known threats with acceptable measured latency and resource load under real peak conditions. This result would test IPS process CPU demand and inspection capacity but does not demonstrate the desired FortiGate outcome here. Verify instead: A controlled benign exploit simulation triggers the expected IPS action while legitimate application transactions continue under tested exclusions. Scenario: A newly built IPS sensor uses an action of monitor for critical signatures and management incorrectly assumes every detected exploit was blocked.
Blocked DNS queries and permitted browser requests behave in accordance with distinct DNS and web policies, with no assumption that one control inspects all channels. This result would test DNS filtering versus web filtering visibility boundaries but does not demonstrate the desired FortiGate outcome here. Verify instead: A controlled benign exploit simulation triggers the expected IPS action while legitimate application transactions continue under tested exclusions. Scenario: A newly built IPS sensor uses an action of monitor for critical signatures and management incorrectly assumes every detected exploit was blocked.
The targeted false positive no longer interrupts an approved service, while exploit attempts retain blocking coverage and traceable alerts. This result would test IPS signatures, logs and focused exception maintenance but does not demonstrate the desired FortiGate outcome here. Verify instead: A controlled benign exploit simulation triggers the expected IPS action while legitimate application transactions continue under tested exclusions. Scenario: A newly built IPS sensor uses an action of monitor for critical signatures and management incorrectly assumes every detected exploit was blocked.