How are MAC addresses removed from a MAC address table?

Posted by: Pdfprep Category: 100-105 Tags: , ,

How are MAC addresses removed from a MAC address table?
A . They are removed automatically if they remain inactive for the duration of the global MAC address timer
B . They must be manually cleared from the table
C . They are removed automatically if they remain inactive for the duration of the switch aging timer
D . They are removed automatically on a FIFO basis when the address-table limit has been reached

Answer: B