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Exam AZ-204 topic 5 question 63 discussion

Actual exam question from Microsoft's AZ-204
Question #: 63
Topic #: 5
[All AZ-204 Questions]

You develop an ASP. Net Core application by integrating the Application Insights SDK into your solution.

The application sends a very high rate of telemetry in a short time interval. You observe a reduced number of events, traces, and metrics being recorded and increased error rates for telemetry ingestion.

You need to reduce telemetry traffic, data costs, and storage costs while preserving a statistically correct analysis of application telemetry data. Your solution must ensure that you will be able to correlate HTTP request and response data.

What should you do?

  • A. Configure a Log Analytics workspace data collection rule (DCR). Use a Kusto Query Language (KQL) statement to filter incoming data.
  • B. Disable adaptive sampling. Enable and configure the fixed-rate sampling module.
  • C. Set a daily cap on the Log Analytics workspace. Create an Activity log alert rule.
  • D. Configure the TelemetryConfiguration object in the instrumented code. Increase the metric aggregation interval to 15 minutes.
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Suggested Answer: B 🗳️
by tafa_had at Feb. 8, 2025, 2:17 p.m.

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kas_91
3 weeks, 2 days ago
Selected Answer: B
Fixed-rate sampling is better in such scenarios because it preserves the full correlation chain within sampled data and gives you consistent behavior across distributed components.
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tafa_had
3 months ago
Selected Answer: B
The issue in the scenario describes high telemetry ingestion leading to data loss and increased error rates. To reduce telemetry traffic, data costs, and storage costs while maintaining statistical accuracy and correlation of HTTP requests and responses, the best approach is to use fixed-rate sampling. Unlike adaptive sampling, which dynamically adjusts based on load, fixed-rate sampling provides predictable control over telemetry volume.
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