QSA_New_V4 Exam Dumps : Qualified Security Assessor V4 Exam

Stateful inspection (or stateful packet filtering)tracks the state of active connections and determines which packets are part of a valid session.Requirement 1.4.2references the use of network security controls (NSCs) withstateful filteringcapability to allow legitimate trafficonly in response to trusted requests.

Option A:❌Incorrect. Firewall admin procedures are not what “stateful” refers to.

Option B:✅Correct. “Stateful responses” mean tracking existing connections toblock unauthorised or spoofed responses.

Option C:❌Incorrect. That describes configuration management, not stateful filtering.

Option D:❌Incorrect. Logging is important but not part of stateful inspection.

Requirement 11.5.1mandates that organisations deployintrusion-detection or prevention toolstomonitor traffic and generate alertsfor suspicious activity. The goal is tonotify personnel quicklyof a possible breach.

Option A:❌Incorrect. IDS/IPS isnot requiredon every component — only where it adds value.

Option B:✅Correct. IDS/IPS must be configured toalert on potential compromises.

Option C:❌Incorrect. Segmentation is a separate concern under Requirement 1.

Option D:❌Incorrect. IDS is not for discovering cardholder data.

Requirement 10.5.1.1requires thataudit logs be protected from unauthorised viewing and modification, and access should berestricted to individuals with a job-related need to view them. This principle aligns with least privilege and ensures accountability.

Option A:❌Incorrect. The person who performed the action may not need to view logs.

Option B:❌Incorrect. Read/write access istoo permissive.

Option C:❌Incorrect. Not all administrators need access to logs.

Option D:✅Correct. Access should bebased on job function.