Question 260
During a cross-team security policy review at Vantage Travel, engineers say that they resolved this finding: A virtualized workload environment moves east-west traffic beyond a physical perimeter firewall's view. Which result provides the STRONGEST acceptance evidence?
Explanation
Correct Answer
Unauthorized lateral traffic is denied without requiring an Internet-edge crossing. This is the decisive evidence for the original problem: A virtualized workload environment moves east-west traffic beyond a physical perimeter firewall's view. It verifies that the intended corrective control—Place segmentation and inspection controls at a virtual or workload network boundary—works in the relevant environment; a completed change ticket alone would not prove the outcome at Vantage Travel.
Incorrect Answers
A test of suspicious HTTP input is rejected while valid requests are served. This would be relevant evidence for a different failure: A public web application needs inspection of HTTP-specific attacks beyond generic port filtering, usually addressed by Add an appropriately tuned web application firewall with application-layer rules. It does not demonstrate that the current problem at Vantage Travel was resolved. The specific required evidence is: Unauthorized lateral traffic is denied without requiring an Internet-edge crossing.
Approved application traffic passes and unrelated tunneled applications are denied. This would be relevant evidence for a different failure: A firewall rule allows every application on TCP 443 although only a sanctioned service is needed, usually addressed by Apply supported application-aware policy matching rather than relying solely on destination ports. It does not demonstrate that the current problem at Vantage Travel was resolved. The specific required evidence is: Unauthorized lateral traffic is denied without requiring an Internet-edge crossing.
Peak-load testing meets latency requirements while representative threats are detected. This would be relevant evidence for a different failure: A security manager enables intrusion inspection on all flows without measuring performance capacity, usually addressed by Size and scope inspection based on throughput, encrypted visibility, and policy criticality. It does not demonstrate that the current problem at Vantage Travel was resolved. The specific required evidence is: Unauthorized lateral traffic is denied without requiring an Internet-edge crossing.