Which of the following is a common type of network access control (NAC) system?

The correct answer is B. 802.1X. 802.1X is a widely used IEEE standard for port-based Network Access Control (NAC). It authenticates devices before granting them network access at the switch or wireless access point level, typically using RADIUS as the authentication server and EAP as the authentication…

Network Security Concepts

Question

Options

AVPN
B802.1X
CAll of the above
DNAT

How the community answered

(28 responses)

B
93% (26)
C
4% (1)
D
4% (1)

Explanation

802.1X is a widely used IEEE standard for port-based Network Access Control (NAC). It authenticates devices before granting them network access at the switch or wireless access point level, typically using RADIUS as the authentication server and EAP as the authentication protocol. VPN (A) provides secure remote tunneling but is not a NAC system - it does not control which devices are allowed onto the network segment itself. NAT (D) translates IP addresses and has no authentication function. 802.1X is the canonical example of NAC because it enforces identity-based access at the network port.

Topics

#Network Access Control (NAC)#802.1X#Network Security#Authentication

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