Which AWS service or tool will monitor AWS resources and applications in real time?

Question

Options

• AAWS Trusted Advisor
• BAmazon CloudWatch
• CAWS CloudTrail
• DAWS Cost Explorer

• A
  2% (1)
• B
  95% (39)
• C
  2% (1)

Explanation

Amazon CloudWatch is the dedicated AWS monitoring and observability service that collects and tracks metrics, monitors log files, sets alarms, and automatically reacts to changes in AWS resources and applications - all in real time. This makes it the go-to service for operational monitoring of infrastructure and application health.

Why the distractors are wrong:

• A. AWS Trusted Advisor provides recommendations and best practice checks across cost, security, and performance - but it does not monitor resources in real time.
• C. AWS CloudTrail records API calls and user activity (audit logs) for governance and compliance purposes - it tracks who did what, not live resource performance.
• D. AWS Cost Explorer is focused solely on analyzing and visualizing AWS spending and usage trends - it has nothing to do with real-time resource monitoring.

Memory Tip: Think of CloudWatch like a security camera with alarms - it watches your resources live and alerts you when something goes wrong. CloudTrail is more like a visitor logbook (who came and what they did), while Trusted Advisor is like a consultant giving improvement advice.

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