A company upgrades its network and PCs to gigabit speeds. After the upgrade, users are not getting the expected performance. Technicians discover that the speeds of the endpoint NICs are…

The correct answer is A. Speed mismatches. Speed Mismatches: If NICs are set to different speeds (e.g., 100 Mbps on one side and 1 Gbps on the other), performance will degrade. Ensuring consistent speed settings between devices is crucial for optimal performance.

Submitted by salim_om· Mar 6, 2026Network Troubleshooting

Question

A company upgrades its network and PCs to gigabit speeds. After the upgrade, users are not getting the expected performance. Technicians discover that the speeds of the endpoint NICs are inconsistent. Which of the following should be checked first to troubleshoot the issue?

Options

ASpeed mismatches
BLoad balancer settings
CFlow control settings
DInfrastructure cabling grade

How the community answered

(24 responses)

A
79% (19)
B
8% (2)
C
4% (1)
D
8% (2)

Explanation

Speed Mismatches: If NICs are set to different speeds (e.g., 100 Mbps on one side and 1 Gbps on the other), performance will degrade. Ensuring consistent speed settings between devices is crucial for optimal performance.

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