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Network Access Control (NAC)

5 minutes 5 Questions

Network Access Control (NAC) is a security approach that helps organizations ensure the security of devices connecting to their networks by enforcing policies, monitoring device compliance, and controlling access. NAC solutions identify, authenticate, and assess the security posture of devices atte…

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CompTIA Security+ - Network Access Control (NAC) Example Questions

Test your knowledge of Network Access Control (NAC)

Question 1

A company's security team notices an increase in unauthorized devices accessing their network. They need a NAC solution that reacts in real-time and blocks new unauthorized devices instantly. What strategy should they implement?

Correct Answer: Dynamic NAC

Dynamic NAC enforces access control policies in real-time and adapts to a constantly changing environment, instantly blocking unauthorized devices. Static NAC and NAC with MAC Address Filtering may not have the same real-time response capability. NAC with VPN and Manual NAC does not provide real-time blocking. Endpoint Security focuses on the devices themselves, not network access.

Question 2

A network administrator receives a notification that an employee's computer is not being granted network access due to a policy violation. What is the most likely reason behind this?

Correct Answer: The employee's computer lacks required security updates.

NAC checks for compliance with security policies, which typically includes updating the system with required security patches. If the employee's computer is missing required security updates, NAC will prevent it from accessing the network.

Question 3

An organization has implemented NAC to check the health status of devices before granting network access. Which of the listed elements does the NAC checker primarily analyze for compliance?

Correct Answer: Patches, Antivirus, and Firewall Configuration.

NAC primarily checks for security-related factors such as patch levels, antivirus software status, and appropriate firewall configuration. The other options are not as critical to network security.

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