CompTIA Network+ (N10-009) — Question 354

Several users report poor performance when accessing shared drives on a file server named Filed. While troubleshooting the issue, the network administrator swaps the Ethernet connections between File01 and another server named File02. Shortly thereafter, users report issues with File02, but Filed is no longer an issue. Which of the following is most likely impacting performance?

Answer options

• A. Port security
• B. Speed/duplex mismatch
• C. PoE power budget reduction
• D. Keep-alive beacon failure

Correct answer: B

Explanation

The correct answer is B, as a speed/duplex mismatch can lead to significant performance issues, particularly when devices are connected with differing settings. The testing between File01 and File02 indicates that the problem was related to how these devices were communicating, rather than port security, PoE issues, or keep-alive failures, which are less likely to directly affect shared drive performance.