What is the primary purpose of network segmentation in PCI DSS?
A.To improve network performance
B.To encrypt network traffic
C.To comply with a specific PCI DSS requirement
D.To reduce the scope of the PCI DSS assessment by isolating the CDE from other networks
Why D is correct
Network segmentation isolates the CDE from non-CDE networks, potentially reducing the number of systems subject to PCI DSS requirements and assessment.
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Where this fits in the PCI DSS exam
Scoping Segmentation
Covers scoping segmentation concepts and practices within PCI DSS.
This question belongs to the "Build & Maintain a Secure Network" domain, which makes up about 20% of the PCI DSS exam.
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When does a third-party service provider's environment become part of the organization's PCI DSS scope?