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Exam AWS-SysOps topic 1 question 900 discussion

Exam question from Amazon's AWS-SysOps
Question #: 900
Topic #: 1
[All AWS-SysOps Questions]

A company's data processing workflow uses AWS Lambda to interact with other AWS services, including AWS Step Functions, Amazon DynamoDB, and Amazon
S3. The Lambda functions make several API calls to these services as a part of the workflow. AWS CloudTrail has been enabled in the AWS Region and is logging to Amazon CloudWatch Logs. The Lambda functions are also logging to CloudWatch Logs.
A SysOps administrator notices that a specific Lambda function in the workflow is taking longer to run than it did last month. The SysOps administrator needs to determine the parts of the Lambda function that are experiencing higher-than-normal response times.
What solution will accomplish this?

  • A. Analyze logs in CloudWatch Logs for the timestamps at which the API calls are made while the Lambda function is running. Compare with the logs from the previous month.
  • B. Enable AWS X-Ray for the function. Analyze the service map and traces to help identify the API calls with anomalous response times.
  • C. Search CloudTrail logs for the calls from the Lambda function. Compare the observed and expected times of API calls relative to the time when the function starts.
  • D. Use CloudWatch to monitor the Duration metric of function invocations for the Lambda function. Compare with the measurements from the previous month.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by Drey at May 7, 2021, 5:08 p.m.
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albert_kuo
9 months, 1 week ago
Selected Answer: B
AWS X-Ray is a service that helps developers analyze and debug distributed applications, including those that use AWS Lambda functions. By enabling AWS X-Ray for the Lambda function, you can gain visibility into the performance of the function and its interactions with other AWS services.
upvoted 1 times
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gulu73
1 year, 2 months ago
Selected Answer: B
Answer is B
upvoted 1 times
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sapien45
2 years, 6 months ago
I used X-Ray to pinpoint poorly written python coding in Lambda. B
upvoted 1 times
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TroyMcLure
2 years, 6 months ago
Correct Answer: B Performance issues => X-Ray
upvoted 1 times
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Reilgh
2 years, 6 months ago
I believe it is B https://aws.amazon.com/xray/
upvoted 1 times
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RicardoD
2 years, 6 months ago
B is the answer
upvoted 1 times
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chewingice
2 years, 6 months ago
I think is B - X ray. CloundWatch Duration metric only displays the total time that your function code spends processing an event; XRay can show the duration of each sub-segment in the function; the Question asks to determine the parts of the Lambda function that are experiencing higher-than-normal response times, so x ray would be more appropriate
upvoted 2 times
chewingice
2 years, 6 months ago
source: https://docs.aws.amazon.com/lambda/latest/dg/services-xray.html
upvoted 2 times
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sig
2 years, 7 months ago
I'll go with B.
upvoted 1 times
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Drey
2 years, 7 months ago
i think it's A.
upvoted 1 times
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