156-215.81.20 Application Control and URL Filtering Practice Question
Exhibit
fw monitor -e 'accept app_id_flag=1;'
Refer to the exhibit. An administrator is troubleshooting Application Control traffic. What does the CLI output verify regarding the traffic flow?
⚠ Common exam trap
Candidates often misinterpret the CLI output as proof of a policy block or a routing error, ignoring the specific flags that confirm successful identification by the Application Control engine.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It validates that the Application Control engine has successfully identified the traffic.
The 'app_id_flag' is a specific indicator in Check Point traffic inspection that confirms the Application Control engine has identified the application. By filtering for this flag, the administrator validates that the packet is being processed by the application identification engine rather than bypassing it or failing classification. This is a critical debugging step to ensure the security gateway is successfully inspecting traffic before applying policy enforcement actions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It verifies that HTTPS inspection is successfully decrypting the payload.
Why it's wrong here
The flag only confirms the classification process was triggered, not that payload decryption was successful. HTTPS inspection success requires checking the status of the SSL inspection engine, as the Application Control engine may identify traffic based on initial handshakes even if the payload remains encrypted and uninspected by blades.
- ✗
It confirms that the packet was permitted by the Security Policy.
Why it's wrong here
This specific monitor filter checks for the Application ID flag, which is a classification marker, not a policy permit decision. The packet might still be dropped by a subsequent rule or an inspection failure, meaning this output only validates the identification stage, not the final security policy decision.
- ✓
It validates that the Application Control engine has successfully identified the traffic.
Why this is correct
The presence of the app_id_flag in the inspection flow signifies that the packet has been processed through the Application Identification engine. This is the definitive indicator for administrators that the gateway correctly tagged the traffic, allowing the policy to apply the corresponding rules to that specific flow.
- ✗
It forces the gateway to bypass all future inspection for this host.
Why it's wrong here
This command is a passive monitoring tool used to view existing traffic flags and does not alter the gateway configuration. It cannot modify inspection behavior or bypass settings; it is purely for observation of the current state of traffic identification within the kernel of the Check Point gateway.
Visual reference
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Check Point exam blueprint
This 156-215.81.20 practice question is part of Courseiva's free Check Point certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 156-215.81.20 exam.