CCNA: Cisco Certified Network Associate — Question 1323

By default, how long will the switch continue to know a workstation MAC address after the workstation stops sending traffic?

Answer options

• A. 200 seconds
• B. 300 seconds
• C. 600 seconds
• D. 900 seconds

Correct answer: B

Explanation

The correct answer is B, 300 seconds, which is the default MAC address aging time for most switches. Options A, C, and D do not reflect the standard configuration and would result in the switch either forgetting the MAC address too quickly or retaining it for an unnecessarily long time.