CompTIA Network+ (N10-008) — Question 741

A company's management team wants to implement NAC on the wired and wireless networks. Which of the following is an authentication component that must be used in this solution?

Answer options

• A. IPSec
• B. 802.1X
• C. EAP
• D. TACACS+

Correct answer: B

Explanation

802.1X is a network access control protocol that provides an authentication mechanism for devices wishing to connect to a LAN or WLAN, making it essential for NAC solutions. IPSec is used for securing IP communications, EAP is an authentication framework, and TACACS+ is a protocol for remote authentication but does not provide the same level of network access control as 802.1X.