Volume 1 - Chapter 5: Analyzing Ethernet LAN Switching

Question 1

A switch’s choice to forward a frame out some ports, and not others is referred to as?

Answer 1

The forward-versus filter decision

Question 2

What command can be used to display the counters on a specific port?

Answer 2

show interface interfacename counters

Question 3

What command can be used to display the dynamic MAC address of a specific interface?

Answer 3

show mac address-table dynamic interface interfacename

Question 4

What command can be used to display the port associated with a specific dynamic MAC address?

Answer 4

show mac address-table dynamic address address

Question 5

What command can be used to display the dynamic MAC addresses associated with a specific VLAN?

Answer 5

show mac address-table dynamic vlan vlannumber

Question 6

Switches remove MAC entries that have not been used for ___ seconds by default.

Answer 6

300

Question 7

What is the command to change the default MAC address aging time?

Answer 7

In global configuration mode:

mac address aging-time timeinseconds

Question 8

What is the command to change the default MAC address aging time for a specific vlan?

Answer 8

In global configuration mode:

mac address aging-time timeinseconds vlan vlannumber

Question 9

Where are MAC address entries are stored in a switch’s memory?

Answer 9

In the CAM (Content Addressable Memory)