DEA-C01 Data Operations and Support Practice Question
A data engineer is setting up Amazon CloudWatch alarms for an Amazon Redshift cluster. The engineer wants to be alerted when the disk space usage exceeds 80% for more than 5 minutes and when the CPU utilization exceeds 90% for more than 10 minutes. Which TWO CloudWatch metrics and conditions should the engineer use? (Choose two.)
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
✓
Metric: CPUUtilization; Condition: > 90 for 10 minutes
The correct metrics and conditions are: for disk space usage exceeding 80% for more than 5 minutes, use PercentageDiskSpace with a threshold of 80 and a period of 5 minutes; for CPU utilization exceeding 90% for more than 10 minutes, use CPUUtilization with a threshold of 90 and a period of 10 minutes. These correspond to options A and E. Option B (DatabaseConnections) monitors connections, not disk or CPU. Option C (NetworkReceiveThroughput) measures network traffic. Option D (WLMQueueLength) tracks query queue length, not disk or CPU.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Metric: CPUUtilization; Condition: > 90 for 10 minutes
Why this is correct
This alarm triggers on CPU usage.
- ✗
Metric: DatabaseConnections; Condition: > 500 for 5 minutes
Why it's wrong here
Database connections are not about CPU.
- ✗
Metric: NetworkReceiveThroughput; Condition: > 1 GB for 10 minutes
Why it's wrong here
Network throughput is not related to CPU.
- ✗
Metric: WLMQueueLength; Condition: > 100 for 5 minutes
Why it's wrong here
WLM queue length is about query queuing, not disk.
- ✓
Metric: PercentageDiskSpace; Condition: > 80 for 5 minutes
Why this is correct
This alarm triggers on disk usage.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-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 DEA-C01 exam.