Question 850
An unidentified sensor is placed in the normal employee VLAN because its MAC address resembles a known printer. Which observed result BEST confirms that the security requirement is met?
Explanation
Correct Answer
An unknown IoT printer receives a restrictive authorization pending verification rather than unconditional internal access. This is an observable acceptance condition, rather than an assumption that enabling a feature alone proves security. Network device profiling infers endpoint type from evidence; a recognized device category is not independent proof of user authorization or security posture. Situation: An unidentified sensor is placed in the normal employee VLAN because its MAC address resembles a known printer.
Incorrect Answers
A device that fails posture moves to remediation or disconnects under the updated policy without requiring a full network restart. This outcome tests CoA session reauthorization by Cisco ISE and is not sufficient proof of the stated requirement. Here the relevant validation is: An unknown IoT printer receives a restrictive authorization pending verification rather than unconditional internal access. Situation: An unidentified sensor is placed in the normal employee VLAN because its MAC address resembles a known printer.
Guests obtain only appropriate internet access while enrolled employees reach approved internal applications under auditable policy. This outcome tests Cisco ISE guest and BYOD identity policies and is not sufficient proof of the stated requirement. Here the relevant validation is: An unknown IoT printer receives a restrictive authorization pending verification rather than unconditional internal access. Situation: An unidentified sensor is placed in the normal employee VLAN because its MAC address resembles a known printer.
A controlled policy change reaches the correct active session and either reauthenticates or terminates it as intended. This outcome tests CoA failure and authorization policy debugging and is not sufficient proof of the stated requirement. Here the relevant validation is: An unknown IoT printer receives a restrictive authorization pending verification rather than unconditional internal access. Situation: An unidentified sensor is placed in the normal employee VLAN because its MAC address resembles a known printer.


