- A
Install the CloudWatch agent on the Fargate tasks to collect metrics.
Why wrong: Fargate does not support installing agents directly.
- B
Set the StorageResolution parameter to 1 when calling PutMetricData.
High-resolution metrics are available faster than standard resolution.
- C
Publish the metrics as structured logs to CloudWatch Logs and use metric filters.
Why wrong: Metric filters add additional latency.
- D
Increase the frequency of PutMetricData calls to every 5 seconds.
Why wrong: This may cause throttling and does not guarantee lower latency.
Question 1,257 of 1,750
DOP-C02 Monitoring and Logging Practice Question
This DOP-C02 practice question tests your understanding of monitoring and logging. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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 company is running a critical application on Amazon ECS with Fargate. The application generates custom metrics that are published to CloudWatch using the PutMetricData API. Recently, the metrics have been delayed by up to 5 minutes. The DevOps team needs to reduce the latency. What should the team do?
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
✓
Set the StorageResolution parameter to 1 when calling PutMetricData.
Setting the StorageResolution parameter to 1 when calling PutMetricData enables high-resolution metrics with a 1-second granularity. This reduces the latency of metric ingestion and retrieval because CloudWatch processes high-resolution metrics more quickly than standard 60-second resolution metrics, addressing the 5-minute delay.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Install the CloudWatch agent on the Fargate tasks to collect metrics.
Why it's wrong here
Fargate does not support installing agents directly.
- ✓
Set the StorageResolution parameter to 1 when calling PutMetricData.
Why this is correct
High-resolution metrics are available faster than standard resolution.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Publish the metrics as structured logs to CloudWatch Logs and use metric filters.
Why it's wrong here
Metric filters add additional latency.
- ✗
Increase the frequency of PutMetricData calls to every 5 seconds.
Why it's wrong here
This may cause throttling and does not guarantee lower latency.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think increasing API call frequency or using log-based metrics will reduce latency, but the actual cause is the default 60-second storage resolution, which delays metric availability regardless of how often data is sent.
Detailed technical explanation
How to think about this question
CloudWatch supports two storage resolutions: Standard (60 seconds) and High (1 second). When StorageResolution is set to 1, metrics are stored as high-resolution metrics, which are ingested and made available for retrieval within a few seconds, whereas standard-resolution metrics can take up to 5 minutes to become visible due to batch processing. This is particularly important for real-time monitoring of critical applications where sub-minute latency is required.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Monitoring and Logging — study guide chapter
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Monitoring and Logging — This question tests Monitoring and Logging — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set the StorageResolution parameter to 1 when calling PutMetricData. — Setting the StorageResolution parameter to 1 when calling PutMetricData enables high-resolution metrics with a 1-second granularity. This reduces the latency of metric ingestion and retrieval because CloudWatch processes high-resolution metrics more quickly than standard 60-second resolution metrics, addressing the 5-minute delay.
What should I do if I get this DOP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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