A network technician is troubleshooting an issue in the company’s data center where a server has intermittent connectivity problems. The switch port linked to the server shows that the connection frequently alternates between full-duplex and half-duplex modes. What is the MOST likely cause of this problem?
The server is configured with an incorrect subnet mask.
The Ethernet cable connecting the server to the switch is experiencing high levels of electromagnetic interference.
The server's network interface card is configured to 'auto-negotiate' while the switch port is statically set to 'full-duplex'.
The switch port and the server's network interface card are set to different VLANs.