Amazon DVA-C02 Exam - Topic 4 Question 50 Discussion

Actual exam question for Amazon's DVA-C02 exam

Question #: 50
Topic #: 4

A developer must analyze performance issues with production-distributed applications written as AWS Lambda functions. These distributed Lambda applications invoke other components that make up me applications. How should the developer identify and troubleshoot the root cause of the performance issues in production?

AAdd logging statements to the Lambda functions. then use Amazon CloudWatch to view the logs.

BUse AWS CloudTrail and then examine the logs.

CUse AWS X-Ray. then examine the segments and errors.

DRun Amazon inspector agents and then analyze performance.

Show Suggested Answer

Suggested Answer: C

This solution will meet the requirements by using AWS X-Ray to analyze and debug the performance issues with the distributed Lambda applications. AWS X-Ray is a service that collects data about requests that the applications serve, and provides tools to view, filter, and gain insights into that data. The developer can use AWS X-Ray to identify the root cause of the performance issues by examining the segments and errors that show the details of each request and the components that make up the applications. Option A is not optimal because it will use logging statements and Amazon CloudWatch, which may not provide enough information or visibility into the distributed applications. Option B is not optimal because it will use AWS CloudTrail, which is a service that records API calls and events for AWS services, not application performance data. Option D is not optimal because it will use Amazon Inspector, which is a service that helps improve the security and compliance of applications on Amazon EC2 instances, not Lambda functions.

by Kent at May 04, 2025, 01:14 AM

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Marion

2 months ago

Wait, can you really troubleshoot Lambda issues with CloudTrail? Sounds off.

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Joesph

2 months ago

I thought D was the way to go, but I guess it's not as relevant here?

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Cheryl

3 months ago

A is a good start, but it won't give you the full picture.

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Royce

3 months ago

Definitely go with C, AWS X-Ray is super helpful for tracing.

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Cristina

3 months ago

B is useful, but X-Ray is way better for performance issues!

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Mozelle

3 months ago

I vaguely recall that CloudTrail is more about auditing API calls rather than performance analysis. So, I’m leaning towards X-Ray or CloudWatch for this one.

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Alberta

4 months ago

I practiced a similar question where AWS X-Ray was the best choice for analyzing performance issues. It really helps visualize the flow of requests.

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Martha

4 months ago

I'm not entirely sure, but I think adding logging statements could help. However, I feel like it might not give the full picture compared to other tools.

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Justa

4 months ago

I remember we discussed using AWS X-Ray for tracing requests in distributed applications. It seems like a solid option for identifying performance bottlenecks.

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Tambra

4 months ago

This is a great question! I'd approach it by using a combination of options A and C. Start with the CloudWatch logs to get a high-level view, then dive deeper into the X-Ray data to pinpoint the specific performance bottlenecks. That should give me a comprehensive understanding of the issues.

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Lawanda

4 months ago

I'm feeling a bit confused by this question. There are a few different options, and I'm not sure which one would be the most effective. I think I'll need to review the AWS documentation on these services to make a more informed decision.

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Nydia

5 months ago

Option C is definitely the way to go here. X-Ray is the perfect tool for analyzing performance in a distributed system like this. It'll give me the visibility I need to identify the root cause of the issues.

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Veronica

5 months ago

Hmm, I'm a bit unsure about this one. I'm torn between options A and C. Adding logging to the Lambda functions could provide some useful insights, but X-Ray might give me a more comprehensive view of the performance issues. I'll need to think this through carefully.

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Merri

5 months ago

This seems like a straightforward question. I'd go with option C - using AWS X-Ray to examine the segments and errors. That should give me a good overview of the performance issues across the distributed components.

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Kiley

8 months ago

Haha, good luck troubleshooting those Lambda functions. I hope they didn't use any of those 'funny' variable names I've seen in the past. That would just make the logs even more confusing!

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Karma

8 months ago

Hmm, I'm not so sure. Option D with Amazon Inspector could be a good choice too. It's designed for performance analysis, so it might give some useful insights.

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Cary

9 months ago

I'm with Krissy on this one. X-Ray is the tool built specifically for this kind of problem. Trying to piece together the issue from CloudTrail or Inspector would be way more work.

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Graciela

8 months ago

Yeah, X-Ray makes it much easier to pinpoint the root cause of performance issues.

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Geraldo

8 months ago

D) Run Amazon inspector agents and then analyze performance.

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Alfreda

8 months ago

I agree, X-Ray is definitely the way to go for this.

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Michel

8 months ago

I agree with you, X-Ray is definitely the way to go for identifying and troubleshooting performance issues.

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Erasmo

8 months ago

C) Use AWS X-Ray. then examine the segments and errors.

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Herminia

8 months ago

A) Add logging statements to the Lambda functions. then use Amazon CloudWatch to view the logs.

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Micaela

9 months ago

I'd have to disagree with Krissy. Option A is the way to go here. Logging is always the first step, and CloudWatch makes it easy to view and analyze those logs.

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Kimbery

9 months ago

I agree, adding logging statements and using CloudWatch is a great way to troubleshoot and find the root cause of performance issues.

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Abel

9 months ago

Option A is definitely the best choice. Logging with CloudWatch is essential for identifying performance issues.

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Claudia

9 months ago

I personally prefer option D. Running Amazon inspector agents can provide a comprehensive analysis of performance.

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Mollie

9 months ago

That's a good point, Denny. AWS X-Ray can definitely help pinpoint the root cause of performance issues.

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Krissy

10 months ago

Definitely go with option C. AWS X-Ray is the way to go for tracing and troubleshooting distributed applications like these. The segments and errors it provides are invaluable.

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Sunny

8 months ago

I've heard that using AWS CloudTrail can also be useful for examining logs and identifying issues. But AWS X-Ray seems more specific for this case.

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Noel

8 months ago

AWS X-Ray is definitely the way to go for this scenario. It provides detailed segments and errors for troubleshooting.

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Annita

8 months ago

I think using Amazon CloudWatch with logging statements in the Lambda functions could also be helpful in identifying performance issues.

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Danica

9 months ago

I agree, option C with AWS X-Ray seems like the best choice for tracing and troubleshooting distributed applications.

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Denny

10 months ago

I disagree, I believe option C is better. AWS X-Ray provides detailed insights into the performance of distributed applications.

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Mollie

10 months ago

I think option A is the best choice. Adding logging statements can help track down performance issues.

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