JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 53

You implemented the MAC address limit feature with the shutdown action on all interfaces on your switch.
In this scenario, which statement is correct when a violation occurs?

Answer options

• A. By default, you must manually clear the violation for the interface to send and receive traffic again.
• B. By default, the violation will automatically be cleared after 300 seconds and the interface will resume sending and receiving traffic for all learned devices.
• C. By default, devices that are learned before the violation occurs are still allowed to send and receive traffic through the specific interface.
• D. By default, the interface will continue to send and receive traffic for all connected devices after a violation has occurred.

Correct answer: A

Explanation

The correct answer is A because when a MAC address violation occurs with the shutdown action, the interface will stop all traffic, and you must manually clear the violation to restore traffic. Option B is incorrect as the interface does not automatically recover after 300 seconds; option C is misleading since learned devices cannot send traffic once a violation occurs; and option D is false because the interface will not continue to function normally after a violation.