156-315.81.20 Threat Prevention and SandBlast Practice Question
An administrator notices that files are being successfully blocked by Threat Emulation, but the user is not seeing the block notification page. Which configuration must be verified to ensure the user receives the notification?
⚠ Common exam trap
Candidates often troubleshoot the sandbox engine itself, overlooking the UserCheck configuration, which is the specific mechanism responsible for delivering the notification page to the end-user's browser.
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
✓
Enable the 'UserCheck' interaction settings within the specific Threat Prevention rule and verify the portal certificate.
Threat Emulation block notifications require specific settings in the Threat Prevention policy and browser interaction. When a file is blocked, the Security Gateway must communicate with the client to display the incident details. Ensuring that the 'UserCheck' mechanism is enabled within the specific Threat Prevention rule and that the gateway can reach the client's IP is critical for visibility and security awareness in a corporate environment.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Verify that the Threat Emulation blade is set to 'Prevent' mode in the global settings.
Why it's wrong here
Setting the blade to prevent mode ensures files are blocked, but this does not dictate whether the notification page is triggered. Notification behavior is controlled by UserCheck settings within the specific policy rule, not by the blade mode itself, which only defines the action taken on malicious traffic.
- ✓
Enable the 'UserCheck' interaction settings within the specific Threat Prevention rule and verify the portal certificate.
Why this is correct
UserCheck must be explicitly enabled and configured within the Threat Prevention rule to allow the gateway to present a block page to the user. Additionally, if the portal uses HTTPS, a valid and trusted certificate is required to avoid browser warnings that prevent the notification from rendering correctly.
- ✗
Ensure that the Threat Extraction blade is disabled for all traffic originating from user subnets.
Why it's wrong here
Disabling Threat Extraction would prevent file sanitization but has no technical impact on the notification display mechanism. UserCheck notifications function independently of whether a file is being sanitized or emulated, relying instead on the policy rule configuration and the gateway's ability to communicate with the endpoint device.
- ✗
Configure the gateway to perform SSL Inspection on all outbound traffic to the internet.
Why it's wrong here
While SSL Inspection is recommended for deep packet visibility, it is not a prerequisite for displaying the UserCheck block page. The gateway can inject the block page into unencrypted traffic or plain HTTP streams without needing full SSL inspection if the browser is configured to receive such notifications.
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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 156-315.81.20 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 156-315.81.20 exam.