Exam AWS Certified Developer Associate topic 1 question 25 discussion

Exam question from Amazon's AWS Certified Developer Associate

Question #: 25
Topic #: 1

[All AWS Certified Developer Associate Questions]

A company is adding items to an Amazon DynamoDB table from an AWS Lambda function that is written in Python. A developer needs to implement a solution that inserts records in the DynamoDB table and performs automatic retry when the insert fails.
Which solution meets these requirements with MINIMUM code changes?

A. Configure the Python code to run the AWS CLI through shell to call the PutItem operation
B. Call the PutItem operation from Python by using the DynamoDB HTTP API
C. Queue the items in AWS Glue, which will put them into the DynamoDB table
D. Use the AWS software development kit (SDK) for Python (boto3) to call the PutItem operation

Show Suggested Answer

Suggested Answer: D 🗳️

by sindra at Sept. 3, 2022, 5:57 a.m.

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Comments

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LaXuanLinh

Highly Voted 2 years, 9 months ago

Selected Answer: D

The answer is D The AWS SDKs for DynamoDB automatically retry requests that receive this exception. Your request is eventually successful, unless your retry queue is too large to finish. Reduce the frequency of requests using Error retries and exponential backoff. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.Errors.html

upvoted 6 times

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Chutyapathy

Most Recent 6 months, 2 weeks ago

Selected Answer: C

Chuthyas it is C it requires no code changes

upvoted 1 times

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sumanshu

6 months, 3 weeks ago

Selected Answer: D

D) Correct Boto3 automatically handles retries for transient failures (e.g., throttling, network errors) by leveraging AWS's built-in retry logic.

upvoted 1 times

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rcaliandro

2 years ago

Selected Answer: D

D for sure, we need SDK for python to call put_item API in order to insert or update an item in the DynamoDB table. Please correct me if I'm wrong but the exponential backoff is implemented in the lambda function itself and not in the AWS SDK. I mean, even if we don't use the SDK, if the lambda throttles an error, it will try other 2 times to execute.

upvoted 1 times

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