CompTIA Network+ (N10-007) — Question 380

A network administrator has noticed many systems on the network have traffic that is anomalous and may be part of a botnet. The administrator wants to implement an access control method that requires a computer to have antivirus software installed before being granted network access. Which of the following should the administrator deploy?

Answer options

• A. 802.1X
• B. Captive portal
• C. Port security
• D. NAC

Correct answer: D

Explanation

The correct answer is NAC (Network Access Control), as it ensures that devices must meet certain criteria, like having antivirus software, before being allowed on the network. 802.1X is more focused on authentication, while a captive portal requires user interaction, and port security is used for limiting access based on MAC addresses, which does not involve antivirus checks.