Question 1100
During a cross-team security policy review at Harbor Point Medical, engineers say that they resolved this finding: An ISE CoA request is sent but the switch ignores it because the configured RADIUS dynamic authorization settings are incorrect. Which result provides the STRONGEST acceptance evidence?
Explanation
Correct Answer
The network access device acknowledges CoA and updates the targeted session. This is the decisive evidence for the original problem: An ISE CoA request is sent but the switch ignores it because the configured RADIUS dynamic authorization settings are incorrect. It verifies that the intended corrective control—Verify device CoA support, source, shared secret, and permitted UDP exchange—works in the relevant environment; a completed change ticket alone would not prove the outcome at Harbor Point Medical.
Incorrect Answers
The user's effective network policy changes and the event is traceable to ISE. This would be relevant evidence for a different failure: A user is moved to a new security group in ISE while an existing session keeps old permissions, usually addressed by Trigger appropriate CoA reauthentication or authorization update for the specific live session. It does not demonstrate that the current problem at Harbor Point Medical was resolved. The specific required evidence is: The network access device acknowledges CoA and updates the targeted session.
Only the noncompliant endpoint's session changes; unrelated clients remain online. This would be relevant evidence for a different failure: CoA policy mistakenly terminates all port sessions during a single device compliance change, usually addressed by Scope dynamic authorization to the intended session identifiers and supported operation. It does not demonstrate that the current problem at Harbor Point Medical was resolved. The specific required evidence is: The network access device acknowledges CoA and updates the targeted session.
The expired guest loses network access at the policy deadline. This would be relevant evidence for a different failure: A guest account expires but an existing session remains active because authorization is evaluated only on connection, usually addressed by Apply session expiration with CoA or another supported active session update. It does not demonstrate that the current problem at Harbor Point Medical was resolved. The specific required evidence is: The network access device acknowledges CoA and updates the targeted session.