Microsoft Azure Developer Associate AZ-204 Practice Question
You need to watch a production ASP.NET Core web app for service degradation while rolling out a critical fix. The solution must let you see incoming request rate, average server response time, and any failed requests within a few seconds, without waiting for data to appear in the Logs blade. Which Application Insights feature should you use?
A metric-based alert rule targeting server response time
Live Metrics Stream (formerly QuickPulse) displays near-real-time telemetry that is pushed directly from the SDK every second. It shows request rate, response time, failure count, CPU and memory usage, and lets you inspect individual failed requests immediately, whereas the Logs blade (Kusto queries) relies on data that is ingested and can be delayed by several minutes. Alert rules, Workbooks, and the Failures pane depend on that ingested data and therefore cannot fulfil the "within a few seconds" requirement.
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How does Live Metrics Stream differ from logging in the Logs blade?
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Microsoft Azure Developer Associate AZ-204
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