问答题
Ezonexam users have noticed extremely slow network performance, intermittent connectivity, and connection losses. After entering the 'show interfaces' command, you notice that the Ethernet interface is configured as 100 Mbps full-duplex and that there is evidence of late collisions. What could be the cause of this problem?
A. Duplex mismatch
B. A routing loop
C. Trunking mode mismatch
D. Improperly configured root bridge
E. Improperly configured static VLAN
F. None of the above