Which IEEE mechanism is responsible for the authentication of devices when they attempt to connect to a local network?

The correct answer is A. 802.1x. IEEE 802.1X is a standard for port-based network access control that provides authentication mechanisms for devices connecting to a local area network.

Submitted by daniela_cl· Mar 5, 2026Security Fundamentals

Question

Which IEEE mechanism is responsible for the authentication of devices when they attempt to connect to a local network?

Options

A802.1x
B802.11
C802.2x
D802.3x

How the community answered

(24 responses)

A
88% (21)
C
4% (1)
D
8% (2)

Why each option

IEEE 802.1X is a standard for port-based network access control that provides authentication mechanisms for devices connecting to a local area network.

A802.1xCorrect

IEEE 802.1X is the standard that defines port-based network access control, providing a robust framework for authenticating devices before granting them access to the network.

B802.11

IEEE 802.11 refers to the family of wireless networking standards (Wi-Fi), which is not solely an authentication mechanism.

C802.2x

There is no recognized IEEE standard specifically named 802.2x.

D802.3x

IEEE 802.3x is a standard for flow control in Ethernet, not for device authentication.

Concept tested: IEEE network access control authentication

Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_8021x/configuration/xe-16/sec-8021x-xe-16-book/sec-8021x-overview.html

Topics

#802.1X#port-based authentication#NAC#IEEE standards

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