Amazon Exam DVA-C02 Topic 1 Question 53 Discussion

Actual exam question for Amazon's DVA-C02 exam

Question #: 53
Topic #: 1

A developer is building a microservice that uses AWS Lambda to process messages from an Amazon Simple Queue Service (Amazon SQS) standard queue. The Lambda function calls external APIs to enrich the SOS message data before loading the data into an Amazon Redshift data warehouse. The SOS queue must handle a maximum of 1.000 messages per second.

During initial testing, the Lambda function repeatedly inserted duplicate data into the Amazon Redshift table. The duplicate data led to a problem with data analysis. All duplicate messages were submitted to the queue within 1 minute of each other.

How should the developer resolve this issue?

ACreate an SOS FIFO queue. Enable message deduplication on the SOS FIFO queue.

BReduce the maximum Lambda concurrency that the SOS queue can invoke.

CUse Lambda's temporary storage to keep track of processed message identifiers.

DConfigure a message group ID for every sent message. Enable message deduplication on the SQS standard queue.

Show Suggested Answer

Suggested Answer: A

by Cathrine at Jul 13, 2025, 11:33 PM

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Tarra

2 days ago

Wait, did you say 1,000 messages per second? That's a lot of data! I hope the developer's laptop can handle all the API calls without catching on fire.

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Alysa

6 days ago

Option C looks like the way to go. Using Lambda's temporary storage to track processed messages seems like a clean and efficient solution.

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