Network Defense Essentials (NDE) Practice Exam 2025 – Your All-in-One Resource to Exam Success!

The correct choice pertains to PCI-DSS Requirement No 1.3.5, which specifically addresses the need to restrict outbound traffic, particularly when it comes to cardholder data. This requirement focuses on establishing and maintaining a secure network and system to safeguard cardholder information. By restricting unauthorized outbound traffic, organizations help prevent sensitive data from being sent outside their network without proper authorization, thereby mitigating the risk of data breaches.

Properly managing and monitoring outbound traffic is essential because it protects against inadvertent data leaks as well as more malicious attacks where an entity attempts to extract sensitive information from a network. This requirement highlights the importance of ensuring that only legitimate and authorized communications with external systems can occur, thereby reinforcing the overall security posture of entities handling cardholder data.

The other options pertain to different aspects of maintaining security and compliance but do not specifically focus on the restrictions surrounding outbound traffic related to cardholder data. Thus, Requirement No 1.3.5 stands out as the crucial guideline for preventing unauthorized outbound data transmission.