A technician is configuring ports on a switch. The technician turns off auto-negotiation and sets the port speed to 1000 Mbps. A user# s PC is no longer able to access the network. Which of the following is MOST likely the problem?

A.
The user# s NIC does not support 1Gbps.

B.
The switch is not compatible with 1000Mbps.

C.
The user# s NIC does not support 100Mbps.

D.
The technician needs to restart the DNS server.