A router is connected to the switch via a Fast Ethernet interface. Intermittently you experience an outage. What should be done first to remedy the problem? Refer to the following exhibit.

A. The speed and duplex should be set statically on both ends.
B. Change the VLAN to a less crowded VLAN.
C. Change the switchport mode to a trunk.
D. Set the switchport to auto-negotiate on both ends.

A. It is recommended to set all servers and networking hardware statically for speed and duplex. If a network interface flaps (transitions between up and down), auto-negotiation of speed and duplex will be performed again, which could create a service outage.