Why Monitoring Matters
Deploying resources is only half the job. As an Azure administrator, you also need to monitor performance, detect issues, and respond quickly.
Azure provides built-in monitoring tools so you can track usage, optimize costs, and ensure workloads remain healthy.
Key Monitoring Tools in Azure
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Azure Monitor – the umbrella service that collects metrics and logs from all Azure resources.
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Metrics – numerical performance data (e.g., CPU %, disk IOPS, request count).
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Logs – detailed event/activity data (e.g., who accessed what, errors).
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Log Analytics Workspace – central place where log data is stored and queried with KQL (Kusto Query Language).
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Alerts & Action Groups – automated responses when conditions are met (e.g., email when CPU > 80%).
What Azure Monitor Can Do
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Collect and analyze performance and usage data.
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Detect anomalies and trigger alerts.
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Provide dashboards and visualizations.
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Integrate with automation or ITSM tools like ServiceNow.
Confusion Buster 🚨
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Metrics vs Logs
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Metrics = numbers, near real-time (e.g., 75% CPU).
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Logs = detailed records, searchable, stored in Log Analytics.
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Exam trap: If the question mentions real-time performance → Metrics. If it mentions querying historical data → Logs.
Simple Example
A company hosts a VM running a web server.
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Azure Monitor collects metrics: CPU usage, disk performance.
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Logs track requests and errors.
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An alert is configured to send an email when CPU > 80% for 5 minutes.
Exam Tip
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“Which service collects metrics and logs from Azure resources?” → Azure Monitor.
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“Where do logs get stored for querying?” → Log Analytics Workspace.
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“How to detect real-time CPU spikes?” → Metrics in Azure Monitor.
What to Expect in the Exam
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Direct Q: “Which service collects data from Azure resources for analysis?” → Azure Monitor.
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Scenario: “You need to set up alerts when VM CPU stays above 80%.” → Azure Monitor + Action Groups.
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Trick Q: “Metrics are used for querying log history.” (False — that’s Logs).