JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 32

By default, how long will a learned MAC address be retained in the bridge table on an EX Series switch?

Answer options

• A. 600 seconds
• B. 3600 seconds
• C. 300 seconds
• D. 1800 seconds

Correct answer: C

Explanation

The correct answer is C, as learned MAC addresses on an EX Series switch are retained for 300 seconds by default. Options A, B, and D provide different durations that do not match the default retention time for MAC addresses on this type of switch.