David Is Working as a Network Advisor at His Organization

Multiple Choice

David is working as a network advisor at his organization. Of late, a number of users are complaining about slow network performance, intermittent connectivity, and connection loss. A show interface command output verifies that the Ethernet interface configured as 100 Mbps full-duplex has a series of collisions. Which of the following could be the most likely cause of this problem?

A) Routing loop
B) Improperly configured root bridge
C) Duplex mismatch
D) Improperly configured static VLAN