What is the correct configuration for SW2?

Refer to the exhibit.

A network administrator is configuring an EtherChannel between SW1 and SW2. The SW1 configuration is shown.

What is the correct configuration for SW2?
A . interface FastEthernet 0/1
channel-group 1 mode active
switchport trunk encapsulation dot1q
switchport mode trunk
interface FastEthernet 0/2
channel-group 1 mode active
switchport trunk encapsulation dot1q
switchport mode trunk
B . interface FastEthernet 0/1
channel-group 2 mode auto
switchport trunk encapsulation dot1q
switchport mode trunk
interface FastEthernet 0/2
channel-group 2 mode auto
switchport trunk encapsulation dot1q
switchport mode trunk
C . interface FastEthernet 0/1
channel-group 1 mode desirable
switchport trunk encapsulation dot1q
switchport mode trunk
interface FastEthernet 0/2
channel-group 1 mode desirable
switchport trunk encapsulation dot1q
switchport mode trunk
D . interface FastEthernet 0/1
channel-group 1 mode passive
switchport trunk encapsulation dot1q
switchport mode trunk
interface FastEthernet 0/2
channel-group 1 mode passive
switchport trunk encapsulation dot1q
switchport mode trunk

View Answer

Answer: C

Explanation:

If the etherchannel was configured with mode “auto”, it was using PagP, so, we need to configure the other switch with “desirable” mode.

PagP modes: auto | Desirable

LACP modes: active | pasive