300-445 Question 175
Single answerYou are responsible for monitoring the performance of a large-scale enterprise network. During a routine analysis of telemetry data from network devices, you notice a sudden spike in latency across multiple routers in the same geographic region. Which data analysis step should you take next to identify the root cause?
- A
Correlate the latency spike with recent configuration changes on the affected routers.
- B
Immediately restart the routers to clear potential memory or CPU issues.
- C
Analyze traffic flow data to identify patterns or anomalies during the latency spike.
- D
Deploy additional routers in the affected region to balance the load.
Show answer and explanation
Correct answer: A
Explanation
In data analysis, the first step should focus on identifying potential causes through correlation. Configuration changes are a common cause of network performance issues, and correlating the latency spike with recent changes is a critical and efficient step in narrowing down the root cause. Other steps, such as analyzing traffic flow, may follow if configuration changes are ruled out.
- A. Correct.
Correlating the latency spike with recent configuration changes is a logical first step in data analysis. Configuration changes can often lead to unexpected performance issues, and identifying such changes can help pinpoint the root cause efficiently.
- B. Incorrect.
Restarting the routers is a reactive step and does not involve analyzing the data to identify the root cause. It may temporarily resolve the issue but does not address the underlying problem.
- C. Incorrect.
Analyzing traffic flow data is a valid troubleshooting step, but it should follow after identifying whether configuration changes are responsible for the issue. Configuration changes can impact traffic flow.
- D. Incorrect.
Deploying additional routers is a long-term solution for capacity issues, not a step in data analysis to identify the cause of a sudden performance problem.