- A
Install the CloudWatch Agent in each container.
Why wrong: Installing CloudWatch Agent in each container is more complex than using the awslogs driver.
- B
Configure AWS CloudTrail to capture logs.
Why wrong: CloudTrail captures AWS API calls, not container logs.
- C
Use the awslogs log driver in the task definition.
The awslogs log driver automatically sends container stdout/stderr to CloudWatch Logs.
- D
Write logs to a file and use an S3 bucket with event notifications.
Why wrong: This is an indirect and less efficient method compared to the awslogs driver.
Question 1,403 of 1,750
ECS awslogs Log Driver to CloudWatch
This DOP-C02 practice question tests your understanding of incident and event response. 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.
An application running on Amazon ECS experiences intermittent failures. The DevOps engineer wants to capture the application's standard output and error logs and send them to CloudWatch Logs. What is the simplest way to achieve this?
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
✓
Use the awslogs log driver in the task definition.
Option C is correct because the awslogs log driver is the simplest native integration between Amazon ECS and CloudWatch Logs. By specifying the log driver in the task definition, the ECS container agent automatically captures stdout and stderr from the container and streams them to CloudWatch Logs without any additional agents or custom code.
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 in each container.
Why it's wrong here
Installing CloudWatch Agent in each container is more complex than using the awslogs driver.
- ✗
Configure AWS CloudTrail to capture logs.
Why it's wrong here
CloudTrail captures AWS API calls, not container logs.
- ✓
Use the awslogs log driver in the task definition.
Why this is correct
The awslogs log driver automatically sends container stdout/stderr to CloudWatch Logs.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Write logs to a file and use an S3 bucket with event notifications.
Why it's wrong here
This is an indirect and less efficient method compared to the awslogs driver.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may overcomplicate the solution by choosing the CloudWatch Agent (Option A) because they assume an agent is needed, but the awslogs log driver is the built-in, simpler mechanism for ECS tasks.
Detailed technical explanation
How to think about this question
The awslogs log driver uses the Docker log driver interface to forward container logs to CloudWatch Logs via the AWS SDK. Under the hood, the ECS container agent configures the Docker daemon to use the awslogs driver, which batches log events and sends them to the specified log group and stream using the PutLogEvents API. A subtle behavior is that the log driver requires the ecs:CreateLogStream and logs:PutLogEvents permissions in the task execution role, and if the log stream does not exist, it is automatically created.
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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Incident and Event Response — study guide chapter
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
Incident and Event Response — This question tests Incident and Event Response — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use the awslogs log driver in the task definition. — Option C is correct because the awslogs log driver is the simplest native integration between Amazon ECS and CloudWatch Logs. By specifying the log driver in the task definition, the ECS container agent automatically captures stdout and stderr from the container and streams them to CloudWatch Logs without any additional agents or custom code.
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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