100-150 Question 198
Select 3A small business is experiencing connectivity issues with one of its branch offices. The branch office is reporting intermittent network connectivity and slow application performance. As part of the troubleshooting process, you verify that the connection between the branch office and the main office is stable. What should you do next to identify the root cause of the issue?
- A
Check the configuration of the branch office router for any misconfigurations.
- B
Run a ping test from the main office to the branch office to verify latency and packet loss.
- C
Inspect the cabling at the branch office for physical damage or loose connections.
- D
Review the Quality of Service (QoS) policies implemented on the branch office network.
- E
Restart the main office router to reset the network connection.
Show answer and explanation
Correct answers: A, B, D
Explanation
To diagnose intermittent connectivity and slow performance, it is essential to verify logical configuration (router settings), measure performance metrics (latency and packet loss), and assess network policies (QoS). These steps help pinpoint the source of the issue, whether it's misconfiguration, congestion, or traffic prioritization. Physical layer issues and device restarts are less relevant once the connection is confirmed stable.
- A. Correct.
Checking the branch office router for misconfigurations helps ensure that the device is set up correctly to handle traffic to and from the main office.
- B. Correct.
Running a ping test provides insight into latency and packet loss, which are critical for diagnosing network performance issues.
- C. Incorrect.
Inspecting physical cabling is often a part of troubleshooting, but in this case, the connectivity between the branch and main offices was verified to be stable, so this is less likely the issue.
- D. Correct.
Reviewing Quality of Service (QoS) policies is important to determine if traffic prioritization is causing slow application performance.
- E. Incorrect.
Restarting the main office router is not a targeted diagnostic step and could cause unnecessary service disruption without identifying the root cause.