A retailer processes credit card transactions. They have segmented their network so that the Cardholder Data Environment (CDE) is isolated from the corporate Wi-Fi network. According to PCI DSS, what is the primary benefit of this segmentation?

Answer options:

It reduces the scope of the PCI DSS assessment.

It eliminates the need for firewalls.

It automatically encrypts all data in transit.

It removes the requirement for quarterly vulnerability scans.

How to approach this question

Recall the strategic reason for network segmentation in compliance contexts.

Full Answer

A.It reduces the scope of the PCI DSS assessment.✓ Correct

Network segmentation isolates the Cardholder Data Environment (CDE) from the rest of the network. While not strictly mandatory, it is highly recommended because it reduces the scope of the PCI DSS assessment. Only the CDE and connected systems need to be audited.

Common mistakes

Thinking segmentation replaces other controls like firewalls or scanning.

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