A company needs to monitor the performance of its ML systems by using a highly scalable AWS service. Which AWS service meets these requirements?

Question

Options

• AAmazon CloudWatch
• BAWS CloudTrail
• CAWS Trusted Advisor
• DAWS Config

• A
  87% (39)
• B
  4% (2)
• C
  2% (1)
• D
  7% (3)

Explanation

Amazon CloudWatch is the correct choice because it is AWS's primary monitoring and observability service, designed to collect metrics, logs, and events from ML systems (such as Amazon SageMaker endpoints) at massive scale, enabling real-time performance tracking, dashboards, and automated alerts.

Why the distractors are wrong:

• AWS CloudTrail (B) records API calls and user activity for auditing and governance purposes - it tracks who did what, not system performance metrics.
• AWS Trusted Advisor (C) provides best-practice recommendations across cost, security, and performance categories, but does not actively monitor or collect real-time performance data from your systems.
• AWS Config (D) tracks configuration changes to AWS resources over time for compliance purposes, not performance monitoring.

Memory Tip: Think of CloudWatch as your system's "fitness tracker" - it constantly watches and measures performance vitals (CPU, latency, error rates). If a question mentions monitoring, metrics, logs, or alarms, CloudWatch is almost always the answer. The word "Watch" is your clue!

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