- A
Enable VPC Flow Logs to monitor network traffic to the function
Why wrong: VPC Flow Logs are for VPC network traffic, not Lambda.
- B
Enable AWS Config rules to evaluate the function configuration
Why wrong: AWS Config evaluates resource configurations, not performance or errors.
- C
Enable active tracing with AWS X-Ray to trace requests through the function
X-Ray provides end-to-end tracing for Lambda.
- D
Enable CloudWatch Logs for the Lambda function to capture application logs
Lambda automatically writes logs to CloudWatch Logs.
- E
Install the CloudWatch Agent on the Lambda execution environment
Why wrong: Lambda does not support installing agents.
Question 1,404 of 1,750
DOP-C02 AWS X-Ray Practice Question
This DOP-C02 practice question tests your understanding of monitoring and logging. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: aWS X-Ray. 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 deploying a new microservice on AWS Lambda. The DevOps team needs to monitor the function for errors and performance issues. Which TWO steps should the team take to set up effective monitoring?
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
✓
Enable active tracing with AWS X-Ray to trace requests through the function
Option C is correct because AWS X-Ray provides end-to-end tracing for requests, allowing you to identify performance bottlenecks and errors in Lambda functions. Option D is correct because Lambda automatically sends logs to CloudWatch Logs, which capture application output, errors, and custom logging. Option A is incorrect: VPC Flow Logs monitor network traffic at the VPC level, not Lambda function internals. Option B is incorrect: AWS Config evaluates resource configurations for compliance, not for function monitoring. Option E is incorrect: The CloudWatch Agent is for EC2 or on-premises servers; Lambda already integrates with CloudWatch Logs natively.
Key principle: AWS X-Ray
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable VPC Flow Logs to monitor network traffic to the function
Why it's wrong here
VPC Flow Logs are for VPC network traffic, not Lambda.
- ✗
Enable AWS Config rules to evaluate the function configuration
Why it's wrong here
AWS Config evaluates resource configurations, not performance or errors.
- ✓
Enable active tracing with AWS X-Ray to trace requests through the function
Why this is correct
X-Ray provides end-to-end tracing for Lambda.
Related concept
AWS X-Ray
- ✓
Enable CloudWatch Logs for the Lambda function to capture application logs
Why this is correct
Lambda automatically writes logs to CloudWatch Logs.
Related concept
AWS X-Ray
- ✗
Install the CloudWatch Agent on the Lambda execution environment
Why it's wrong here
Lambda does not support installing agents.
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
- AWS X-Ray
- Amazon CloudWatch Logs
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
AWS X-Ray
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Review aWS X-Ray, then practise related DOP-C02 questions on the same topic to reinforce the concept.
- →
Monitoring and Logging — study guide chapter
Learn the concepts, then practise the questions
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Monitoring and Logging practice questions
Targeted practice on this topic area only
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AWS Certified DevOps Engineer Professional DOP-C02 study guide
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DOP-C02 practice test guide
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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 — AWS X-Ray.
What is the correct answer to this question?
The correct answer is: Enable active tracing with AWS X-Ray to trace requests through the function — Option C is correct because AWS X-Ray provides end-to-end tracing for requests, allowing you to identify performance bottlenecks and errors in Lambda functions. Option D is correct because Lambda automatically sends logs to CloudWatch Logs, which capture application output, errors, and custom logging. Option A is incorrect: VPC Flow Logs monitor network traffic at the VPC level, not Lambda function internals. Option B is incorrect: AWS Config evaluates resource configurations for compliance, not for function monitoring. Option E is incorrect: The CloudWatch Agent is for EC2 or on-premises servers; Lambda already integrates with CloudWatch Logs natively.
What should I do if I get this DOP-C02 question wrong?
Review aWS X-Ray, then practise related DOP-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
AWS X-Ray
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Last reviewed: Jun 20, 2026
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