PCI SSC QSA_New_V4 - Qualified Security Assessor V4 Exam

Compensating controls are alternative measures implemented when an entity cannot meet a specific PCI DSS requirement due to legitimate technical or business constraints. These controls must sufficiently mitigate the associated risk and be commensurate with the intent of the original PCI DSS requirement.​

Option A:Incorrect. Even if all other PCI DSS requirements are met, a compensating control is necessary when a specific requirement cannot be directly satisfied.​

Option B:Correct. A compensating control must effectively address and mitigate the risk associated with the inability to meet a particular PCI DSS requirement.​

Option C:Incorrect. While existing controls can support a compensating control, they must collectively address the risk of the unmet requirement and cannot merely be another existing PCI DSS requirement.​

Option D:Incorrect. A compensating control worksheet is mandatory to document the rationale, assessment, and validation of the compensating control, regardless of acquirer approval.​

For detailed guidance on compensating controls, refer toAppendix B: Compensating Controlsin thePCI DSS v4.0.1document.​

Requirement 4.2.1.1states that PAN must beprotected with strong cryptographywhenever transmitted overopen or public networks, includingprivate wirelesswhere security is not assured. While not allprivate wired networksrequire encryption,wirelessis generally considered untrusted.

Option A:✅Correct. PAN must be encrypted overprivate wireless networksdue to potential interception risks.

Option B:❌Incorrect. Privatewirednetworks typically don’t require encryption unless they’re untrusted.

Option C & D:❌Incorrect. PANalways requires protectionover public networks.