CompTIA Network+ (N10-006) — Question 27

A network administrator has configured a new 100Mbs WAN circuit, but speed testing shows poor performance when downloading large files. The download initially reaches close to 100Mbps but begins to drop and show spikes in the downloads speeds over time. The administrator checks the router interface and sees the following:

Router01#show interface eth 1/1 -
GigabitEthernet 1/1 is up, line is up
Hardware is GigabitEthernet, address is 000A.00BB.CC11
Configured speed auto, actual 1Gbit, configured duplex fdx, actual fdx
Member of L2 VLAN 1, port is untagged, port state is forwarding
Which of the following is MOST likely to resolve the issue?

Answer options

• A. Shutdown and then re-enable this interface
• B. Reset the statistics counter for this interface
• C. Remove default 802.1q tag and set to server VLAN
• D. Apply egress port rate-shaping

Correct answer: C

Explanation

The correct answer is C because removing the default 802.1q tag and assigning the port to the server VLAN can help in resolving VLAN tagging issues that may be causing performance degradation. The other options, while potentially useful for different issues, do not directly address the VLAN configuration that is impacting the download speeds.