300-445 Question 169
Single answerA network administrator is tasked with identifying the root cause of intermittent application performance issues within an enterprise network. The administrator decides to analyze historical network telemetry data collected from multiple devices. Which data analysis technique should the administrator use to identify patterns or anomalies in the collected data?
- A
Trend analysis over time to identify recurring patterns in network performance metrics.
- B
Real-time packet capture to isolate the problematic traffic flow.
- C
Correlation analysis to determine relationships between different network metrics.
- D
Manual log review from each device to pinpoint the issue.
Show answer and explanation
Correct answer: A
Explanation
Trend analysis is the correct approach when working with historical telemetry data, as it allows the administrator to identify recurring patterns or anomalies over time. This is a critical step in diagnosing long-term or intermittent network performance issues, especially in large enterprise environments.
- A. Correct.
Trend analysis over time is the most effective method for analyzing historical network data to identify recurring patterns or anomalies, which can indicate root causes of performance issues.
- B. Incorrect.
Real-time packet capture is more suited for diagnosing issues as they happen, rather than analyzing historical data for patterns or trends.
- C. Incorrect.
Correlation analysis can be useful but it is typically applied after trends or anomalies are identified, to explore relationships between metrics.
- D. Incorrect.
Manual log review is time-consuming and error-prone, making it unsuitable for efficiently analyzing historical telemetry data across multiple devices.