DEA-C01 Data Operations and Support Practice Question
A data engineer needs to monitor Amazon DynamoDB table metrics to detect throttled requests. Which CloudWatch metric should the engineer set an alarm on?
⚠ Common exam trap
A common mix-up: candidates confuse `ThrottledRequests` with `ReadThrottleEvents` or `WriteThrottleEvents`, which are not actual CloudWatch metrics, leading them to select a plausible-sounding but incorrect option.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
ThrottledRequests
`ThrottledRequests` is the specific Amazon CloudWatch metric that tracks the number of requests to a DynamoDB table that are throttled due to exceeding the provisioned throughput capacity. This metric directly reflects throttling events, making it the appropriate choice for setting an alarm to detect throttled requests.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ReadThrottleEvents
Why it's wrong here
While related, ThrottledRequests is the standard metric for all throttled requests.
- ✗
SuccessfulRequestLatency
Why it's wrong here
This measures latency, not throttling.
- ✓
ThrottledRequests
Why this is correct
This metric directly indicates requests that were throttled.
- ✗
ConsumedWriteCapacityUnits
Why it's wrong here
This metric shows consumed capacity, not throttling.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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