DBS-C01 Monitoring and Troubleshooting Practice Question
A company uses Amazon DynamoDB with on-demand capacity. Users report increased latency during peak hours. The application uses the DynamoDB API. Which monitoring metric should be examined first to identify throttling issues?
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). ThrottledRequests is a CloudWatch metric that directly indicates the number of requests that were throttled due to exceeding provisioned throughput limits or the instantaneous capacity of on-demand mode. For on-demand capacity, while DynamoDB scales automatically, sudden spikes can still cause throttling. Examining ThrottledRequests first provides the most direct indication of throttling issues. Option B (SuccessfulRequestLatency) is incorrect because it measures latency of successful requests, not throttling. Option C (ReadThrottleEvents) is incorrect because it only counts throttled read events, whereas ThrottledRequests includes both reads and writes. Option D (ConsumedWriteCapacityUnits) is incorrect because it shows the amount of write capacity consumed, not 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.
- ✓
ThrottledRequests
Why this is correct
ThrottledRequests directly indicates requests that were throttled.
- ✗
SuccessfulRequestLatency
Why it's wrong here
Latency can be affected by throttling but is not a direct indicator of throttled requests.
- ✗
ReadThrottleEvents
Why it's wrong here
This is a less commonly used metric; ThrottledRequests is the primary metric.
- ✗
ConsumedWriteCapacityUnits
Why it's wrong here
This shows write capacity used, but not throttled requests.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DBS-C01 exam.