DBS-C01 Monitoring and Troubleshooting Practice Question
A company is using Amazon Redshift for data warehousing. Users report that queries are taking longer than expected. Which CloudWatch metric should be monitored to identify if queries are waiting for resources due to concurrency scaling?
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
✓
ConcurrencyScalingActiveQueries
ConcurrencyScalingActiveQueries measures the number of queries currently running on concurrency scaling clusters, helping identify if queries are waiting due to concurrency scaling. Option A is incorrect because WLMQueueLength indicates queries waiting in the workload management queue, not necessarily due to concurrency scaling. Option B is incorrect because DiskSpaceUsage tracks storage consumption, not query waiting. Option C is incorrect because QueryDuration measures execution time but does not indicate waiting for concurrency scaling resources.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
WLMQueueLength
Why it's wrong here
WLMQueueLength indicates queries waiting in WLM queues, not necessarily concurrency scaling.
- ✗
DiskSpaceUsage
Why it's wrong here
DiskSpaceUsage is for storage utilization.
- ✗
QueryDuration
Why it's wrong here
QueryDuration measures execution time, not concurrency scaling usage.
- ✓
ConcurrencyScalingActiveQueries
Why this is correct
This metric shows the number of queries running on concurrency scaling clusters.
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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.