PCI SSC Updated QSA_New_V4 Exam Questions and Answers by bailey

PerRequirement 10.6.1, PCI DSS mandates that time-synchronization technology be used, andsystems must be synchronized to a central time serverthat itself receives time from an approved external source. This ensures logs can be accurately correlated.

Option A:Incorrect. Time inconsistency arises if each system operates independently.

Option B:Incorrect. Time configuration must berestricted to authorised personnel only.

Option C:Correct. Time should be sourced from a centralised server which is in sync with reliable external sources.

Option D:Incorrect. Each system peering independently can cause inconsistencies.

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.

PCI DSS allows an entity touse both Defined and Customized Approaches, including for different sub-requirements of the same primary requirement,as long as they are eligible and justified. Entities might use the Defined Approach for standard controls and the Customized Approach where flexibility is needed.

Option A:Incorrect. PCI DSS explicitly allows mixed use per Requirement 8 guidance.

Option B:Incorrect. Compensating controls are separate from the Customized Approach.

Option C:Incorrect. Eligibility is not based solely on the absence of compensating controls.

Option D:Correct. Mixed approaches are allowed if eligibility requirements are met.

According toRequirement 1.2.1of PCI DSS v4.0.1, network security controls (NSCs), such as firewalls and segmentation controls, are used torestrict and control trafficbetween trusted and untrusted networks. This includes logical or physical network segmentation.

Option A:Incorrect. Anti-malware is addressed in Requirement 5.

Option B:Correct. NSCs control and restrict inbound and outbound traffic between logical and physical network segments.

Option C:Incorrect. Vulnerability management is under Requirement 6.

Option D:Incorrect. PAN encryption is covered in Requirement 3.5.