What is used to enforce endpoint compliance with policies before granting network access?

The correct choice, Network Access Control, plays a critical role in enforcing endpoint compliance with security policies prior to granting access to the network. This approach ensures that devices seeking to connect must meet specific criteria, which may include having up-to-date antivirus software, operating system patches, and other security measures in place. By verifying the security status of endpoints before they connect, Network Access Control helps to mitigate the risk of vulnerabilities being exploited by malicious actors.

The other options do have their own roles within cybersecurity. Network Monitoring Systems focus on observing and analyzing network traffic to detect anomalies or potential threats but do not directly enforce compliance at the point of access. Data Loss Prevention Systems aim to prevent the unauthorized transfer of information but do not restrict network access based on endpoint security posture. Endpoint Detection and Response tools are designed to monitor and respond to threats on endpoints but do not serve the same purpose for pre-access compliance validation as Network Access Control does. Thus, the emphasis on enforcing compliance directly aligns with the role of Network Access Control.