Question 220
An ISE administrator troubleshoots the following: After an endpoint is reassigned from Contractor to Employee, the switch keeps its previous SGT even though ISE now returns the approved Employee group. What is the strongest evidence that this requirement is met?
Explanation
Correct Answer
The affected endpoint's session reflects the new SGT and its enforcement matrix behavior changes accordingly. The required remediation is: Reauthenticate the session using supported CoA or session refresh and verify the resulting TrustSec authorization. It works because an active NAD session may retain its initial tag until its RADIUS authorization state is refreshed.
Incorrect Answers
Use approved TrustSec policy distribution and verify that devices receive and enforce the current SGACL definition and matrix updates. The repeat risk here is different: Reauthenticate the session using supported CoA or session refresh and verify the resulting TrustSec authorization. A directly relevant preventive control is: The affected endpoint's session reflects the new SGT and its enforcement matrix behavior changes accordingly.
Configure the intended source-SGT to destination-SGT permission using a suitable SGACL in the TrustSec policy matrix. The repeat risk here is different: Reauthenticate the session using supported CoA or session refresh and verify the resulting TrustSec authorization. A directly relevant preventive control is: The affected endpoint's session reflects the new SGT and its enforcement matrix behavior changes accordingly.
Expire temporary local users and prevent test identity stores from matching production requests. The repeat risk here is different: Reauthenticate the session using supported CoA or session refresh and verify the resulting TrustSec authorization. A directly relevant preventive control is: The affected endpoint's session reflects the new SGT and its enforcement matrix behavior changes accordingly.