Cisco Certified Network Associate (CCNA) Practice Exam

How is an EtherChannel channel group configured statically to add a physical interface?

1. (config)#interface INTERFACE

2. (config)#channel-group CHANNEL GROUP NUMBER mode on

3. (config-if)#no shut

4. All of the above

The correct answer is: All of the above

The correct answer encompasses three necessary steps required for the static configuration of an EtherChannel channel group. First, entering the interface configuration mode is essential, as you need to specify which physical interface you wish to add to the EtherChannel. This is accomplished with the command that indicates the interface being configured. Next, using the command to add the interface to a specific EtherChannel group using the mode "on" effectively statically assigns that interface to an EtherChannel. The "on" mode ensures that the interface will join the EtherChannel without relying on negotiations, meaning that it will only participate in the EtherChannel if the configuration is precisely the same on both ends. Finally, bringing up the physical interface with the appropriate command ensures that it is operational and ready to participate in the EtherChannel. This step is critical, as without activating the interface, it won’t be able to transmit or receive any traffic. Therefore, all these commands work together to successfully configure a static EtherChannel group by adding a physical interface.