JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 79

You enable persistent MAC learning on your Juniper switch.

In this scenario, which statement is correct?

Answer options

• A. You can only enable persistent MAC learning on an interface on which 802.1x authentication is configured.
• B. You can enable persistent MAC learning on an interface where MAC learning is disabled.
• C. You can enable persistent MAC learning on an interface that is part of a redundant trunk group.
• D. You can only enable persistent MAC learning on an interface in access mode.

Correct answer: D

Explanation

The correct answer is D because persistent MAC learning is specifically designed to operate on interfaces configured in access mode. Options A, B, and C are incorrect as they misrepresent the conditions under which persistent MAC learning can be enabled.