Crucial Exams

Microsoft DevOps Engineer Expert AZ-400 Practice Question

You manage a production Azure App Service that is instrumented with Application Insights and sends its telemetry to a Log Analytics workspace. Users report intermittent latency. You must discover which request operations have the highest server-side latency at the 95th percentile during the last hour by running a single Kusto Query Language (KQL) statement. Which KQL statement should you run?

  • dependencies | where timestamp > ago(1h) | summarize percentile(totalDuration, 95), count() by name

  • requests | where timestamp > ago(1h) | summarize avg(duration), percentile(duration, 95), count() by operation_Name

  • traces | where timestamp > ago(1h) | summarize percentile(duration, 95), count() by operation_Name

  • requests | where timestamp > ago(1h) | extend p95 = percentile(duration, 95) | summarize avg(duration), p95, count() by cloud_RoleName

Microsoft DevOps Engineer Expert AZ-400
Implement an instrumentation strategy
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