156-315.81.20 Threat Prevention and SandBlast Practice Question
A Check Point administrator is troubleshooting a Threat Emulation issue where a specific PDF file was not emulated, despite the Threat Prevention policy being configured to inspect PDFs. The log shows the file was allowed with the action 'Bypass' under Threat Emulation. The administrator verifies that the file is not password-protected and is under the maximum file size limit. What is the most likely reason for the bypass?
⚠ Common exam trap
The trap here is overlooking the possibility of a whitelist match, as administrators often focus on configuration errors or file properties before considering threat intelligence-based bypasses.
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
✓
The file hash was found in the ThreatCloud whitelist, so emulation was skipped.
A 'Bypass' action in Threat Emulation logs often occurs when the file's hash is found in the ThreatCloud whitelist, indicating it is known to be benign. This avoids unnecessary emulation and reduces latency. Other common bypass reasons include unsupported file types, password-protected files, or files that exceed size limits, but those are ruled out by the scenario. Therefore, the whitelist is the most likely cause.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The PDF contained embedded JavaScript, which Threat Emulation cannot inspect.
Why it's wrong here
Threat Emulation is designed to inspect PDFs with JavaScript and other active content. In fact, JavaScript is a common attack vector that emulation specifically looks for. The inability to inspect JavaScript is not a standard bypass reason. Thus, this option is incorrect.
- ✓
The file hash was found in the ThreatCloud whitelist, so emulation was skipped.
Why this is correct
ThreatCloud maintains a whitelist of known benign files. If the file's hash matches an entry, Threat Emulation bypasses the file to save resources, trusting the reputation. This is a common reason for bypass. The administrator should check the ThreatCloud reputation status for the file hash.
- ✗
The Threat Emulation blade was not enabled on the Security Gateway.
Why it's wrong here
If the blade were not enabled, no emulation would occur at all, and the log would not show a 'Bypass' action under Threat Emulation. The presence of a bypass log indicates the blade is active but chose not to emulate the file for a specific reason. Therefore, this is not the most likely cause.
- ✗
The PDF file was too large and exceeded the maximum file size for emulation.
Why it's wrong here
The scenario explicitly states the file is under the maximum file size limit. Therefore, size is not the cause. While file size can trigger bypass, it is ruled out here. The administrator should look for other reasons such as whitelisting or unsupported features.
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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.