350-701 Question #387: Real Exam Question with Answer & Explanation

The correct answer is A: 24 State. The RADIUS Change of Authorization (CoA) feature allows dynamic changes to a user's session authorization. For CoA to function correctly, it must reference a specific session, which is done using the IETF RADIUS Attribute 24 (State). The State attribute helps maintain session con

Submitted by kev92· Mar 30, 2026

Question

Which IETF attribute is supported for the RADIUS CoA feature?

Options

A24 State
B30 Calling-Station-ID
C42 Acct-Session-ID
D81 Message-Authenticator

Explanation

The RADIUS Change of Authorization (CoA) feature allows dynamic changes to a user's session authorization. For CoA to function correctly, it must reference a specific session, which is done using the IETF RADIUS Attribute 24 (State). The State attribute helps maintain session continuity and is used to uniquely identify sessions for applying CoA requests, such as session termination or policy updates.

Topics

#RADIUS CoA#IETF attributes

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