A user is complaining of extremely long logon times. Using the following figure, what can you conclude?
Answer Options
The connection to the computer needs to be upgraded to 100 Mb/s.
The connection to the computer has wiring issues.
The NIC in the attached computer is going bad and needs replacement.
The interface or computer is running at half-duplex.
Correct Answer: D
Explanation
The interface shows a high number of collisions. In a full-duplex network connection, there should be no collisions. This would suggest that the port on the switch or the NIC in the computer is set to half-duplex. Half-duplex causes collisions, which can degrade bandwidth by 40% to 60%. Upgrading the computer to 100 Mb/s will not solve the high collision rate; it will just allow more collisions to happen more quickly. You cannot conclude there is a wiring issue from the details of the interface. Although it is always possible a NIC is going bad, the NIC is still passing traffic, and there are not enough details in the output of the interface.