While viewing the status of interfaces on a Cisco switch, you see an abnormally large number of CRC errors on one interface. This interface is connected to a user's workstation that is located in a cubicle on the second floor.

What could cause this to happen?

answer

An incorrect subnet mask configured on the workstation.

Two hosts on the network with the same MAC address.

Collisions between two or more network hosts.

A strong EMI emitter near the cable connected to that interface.