Refer to the exhibit.

What information about the interfaces on the Main_Campus router is true?

A.
The LAN interfaces are configured on different subnets.

B.
Interface FastEthernet 0/0 is configured as a trunk.

C.
The Layer 2 protocol of interface Serial 0/1 is NOT operational.

D.
The router is a modular router with five FastEthernet interfaces.

E.
Interface FastEthernet 0/0 is administratively deactivated.

Explanation:
Interface fa0/0 breaks into sub-interfaces and Main_Campus router is connected with switch via
fa0/0 .Subinterfaces configured with different subnet mask so the seem switch has multiple vlans
and allows communication between these VLAN’s. For routing and inter-vlan we need to configure a
trunk port. So B will be the correct answer.