Question 70
During an 802.1X, portal, or device administration test, engineers notice: An employee registers a personal tablet and receives a certificate, yet ISE authorizes every trusted certificate including unrelated company-issued machine credentials for BYOD access. Which Cisco ISE action most directly resolves the observed problem?
Explanation
Correct Answer
The underlying cause is: Certificate chain trust establishes authenticity but does not substitute for the registered BYOD attributes and identity conditions required by the access policy. The correct response is: Match the approved BYOD registration state and certificate identity in an authorization rule instead of granting the BYOD result to all trusted issuers. Confirm by checking: An enrolled personal tablet gets the intended limited BYOD access while a different valid certificate without registration does not match the rule.
Incorrect Answers
That intervention addresses byod native supplicant provisioning wizard, where The supported native supplicant provisioning workflow installs the approved wireless settings and device credential; portal registration alone does not configure EAP-TLS. Here, the relevant failure is instead: Certificate chain trust establishes authenticity but does not substitute for the registered BYOD attributes and identity conditions required by the access policy.
That intervention addresses ise internal ca certificate signing for byod, where Certificate-based BYOD requires an appropriate issuing CA and working certificate provisioning chain; a portal alone cannot create trusted device credentials. In this question the necessary remedy is “Match the approved BYOD registration state and certificate identity in an authorization rule instead of granting the BYOD result to all trusted issuers”, which this alternative does not provide.
That intervention addresses dual ssid byod onboarding path, where Dual-SSID BYOD designs require the enrollment workflow or user instructions to move the configured supplicant to the secure certificate-authenticated WLAN. The observed condition is an employee registers a personal tablet and receives a certificate, yet ISE authorizes every trusted certificate including unrelated company-issued machine credentials for BYOD access; this mechanism addresses another problem.