- A
ReadIOPS
Why wrong: ReadIOPS measures the number of read I/O operations per second and does not track disk space usage.
- B
WriteIOPS
Why wrong: WriteIOPS measures the number of write I/O operations per second and does not track disk space usage.
- C
PercentageDiskSpace
PercentageDiskSpace directly measures the percentage of disk space used on the Redshift cluster, making it the correct metric for detecting disk space issues.
- D
NetworkThroughput
Why wrong: NetworkThroughput measures network traffic in bytes per second and does not indicate disk space usage.
- E
CPUUtilization
Why wrong: CPUUtilization measures the percentage of CPU usage and does not indicate disk space usage.
Question 1,177 of 1,786
DEA-C01 Amazon Redshift CloudWatch Metrics Practice Question
This DEA-C01 practice question tests your understanding of data operations and support. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: amazon Redshift CloudWatch Metrics. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A data engineer needs to monitor the performance of an Amazon Redshift cluster. Which TWO Amazon CloudWatch metrics should the engineer monitor to detect disk space 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
✓
PercentageDiskSpace
The correct answer is option C only. PercentageDiskSpace is a direct CloudWatch metric that tracks the percentage of disk space used on the Redshift cluster, making it ideal for detecting disk space issues. ReadIOPS and WriteIOPS measure I/O operations per second and are not indicators of disk space usage. NetworkThroughput measures network traffic, and CPUUtilization measures compute usage; neither relates to disk space. Although the question asks for two metrics, only one metric (PercentageDiskSpace) directly indicates disk space usage.
Key principle: Amazon Redshift CloudWatch Metrics
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ReadIOPS
Why it's wrong here
ReadIOPS measures the number of read I/O operations per second and does not track disk space usage.
- ✗
WriteIOPS
Why it's wrong here
WriteIOPS measures the number of write I/O operations per second and does not track disk space usage.
- ✓
PercentageDiskSpace
Why this is correct
PercentageDiskSpace directly measures the percentage of disk space used on the Redshift cluster, making it the correct metric for detecting disk space issues.
Related concept
Amazon Redshift CloudWatch Metrics
- ✗
NetworkThroughput
Why it's wrong here
NetworkThroughput measures network traffic in bytes per second and does not indicate disk space usage.
- ✗
CPUUtilization
Why it's wrong here
CPUUtilization measures the percentage of CPU usage and does not indicate disk space usage.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Amazon Redshift CloudWatch Metrics
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Amazon Redshift CloudWatch Metrics
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Review amazon Redshift CloudWatch Metrics, then practise related DEA-C01 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Operations and Support — This question tests Data Operations and Support — Amazon Redshift CloudWatch Metrics.
What is the correct answer to this question?
The correct answer is: PercentageDiskSpace — The correct answer is option C only. PercentageDiskSpace is a direct CloudWatch metric that tracks the percentage of disk space used on the Redshift cluster, making it ideal for detecting disk space issues. ReadIOPS and WriteIOPS measure I/O operations per second and are not indicators of disk space usage. NetworkThroughput measures network traffic, and CPUUtilization measures compute usage; neither relates to disk space. Although the question asks for two metrics, only one metric (PercentageDiskSpace) directly indicates disk space usage.
What should I do if I get this DEA-C01 question wrong?
Review amazon Redshift CloudWatch Metrics, then practise related DEA-C01 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Amazon Redshift CloudWatch Metrics
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Last reviewed: Jun 20, 2026
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