156-315.81.20 Threat Prevention and SandBlast Practice Question
Exhibit
Object: Protected_Network Blade: Threat Emulation Status: Active Action: Prevent Emulation Location: Cloud Fallback Action: Block Result: File 'invoice.pdf' blocked due to 'Inconclusive' emulation result.
Refer to the exhibit. Why was 'invoice.pdf' blocked?
⚠ Common exam trap
Candidates often assume a file was blocked because it was confirmed malicious. They overlook that 'Inconclusive' results can also trigger a block depending on the specific 'Fallback Action' policy configuration.
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 Threat Emulation policy is configured to block files when the emulation result is inconclusive.
The 'Fallback Action' is set to 'Block' in the Threat Emulation configuration. When the emulation engine cannot reach a definitive conclusion (Inconclusive) about whether a file is malicious, the gateway defaults to this configured fallback. In high-security environments, blocking inconclusive files is a best practice to ensure no potential threats pass through, even at the cost of occasionally flagging benign but suspicious-looking files that failed the emulation process.
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 file was identified as malicious by the local IPS blade.
Why it's wrong here
The exhibit explicitly states the file was blocked due to an 'Inconclusive' emulation result from the Threat Emulation blade, not the IPS blade. IPS and Emulation are separate blades with distinct operational triggers; confusing them leads to incorrect troubleshooting and failure to address the emulation configuration issue.
- ✗
The Threat Emulation cloud service was unreachable, triggering the fallback policy.
Why it's wrong here
While it is possible for connection issues to cause inconclusive results, the prompt indicates the result was 'Inconclusive' as a determination, not a connectivity error. The block occurred because the policy specifically defined 'Block' as the action for inconclusive results, regardless of whether the cause was connectivity or complexity.
- ✓
The Threat Emulation policy is configured to block files when the emulation result is inconclusive.
Why this is correct
The fallback action is set to 'Block'. When the emulation service returns an inconclusive result, the gateway adheres to the configured fallback setting. This ensures that files that cannot be verified as safe are prevented from reaching the user, maintaining a strict security posture at the network perimeter.
- ✗
The file size exceeded the maximum allowed size for cloud emulation.
Why it's wrong here
If a file size exceeded the limit, the logs would indicate a 'file too large' or 'skipped' status rather than 'Inconclusive'. An inconclusive result refers to the analysis outcome itself, not a constraint imposed by file size limits or other pre-processing filters that would result in different error logs.
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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
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