You have configured Cisco 2960 called Switch A with the command switchport mode trunk. However, Switch B will not form a trunk with Switch A. What is the problem on Switch B? Refer to the following exhibit.

A. Switch B has DTP turned off.
B. Switch B is set to an access port.
C. Switch B has its interface administratively disabled.
D. Switch B has the wrong trunk encapsulation.

B. The show interfaces gi 0/1 switchport on Switch B shows the interface in a static access mode. This means that you have an interface mismatch. Switch A is set to a mode of trunk, and Switch B is set to a mode of access.