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Question 468 - DVA-C01 discussion

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A company hosts a microservices application that uses Amazon API Gateway, AWS Lambda, Amazon Simple Queue Service (Amazon SOS), and Amazon DynamoDB, One of the Lambda functions adds messages to an SOS FIFO queue. When a developer checks the application logs, the developer finds a few duplicated items in a DynamoDB table. The items were inserted by another polling function that processes messages from the queue. What is the MOST likely cause of this issue?

A.
Write operations on the DynamoDB table are being throttled
Answers
A.
Write operations on the DynamoDB table are being throttled
B.
The SOS queue delivered the message to the function more than once
Answers
B.
The SOS queue delivered the message to the function more than once
C.
API Gateway duplicated the message in the SOS queue
Answers
C.
API Gateway duplicated the message in the SOS queue
D.
The polling function timeout is greater than the queue visibility timeout
Answers
D.
The polling function timeout is greater than the queue visibility timeout
Suggested answer: B
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asked 16/09/2024
Haleem SHITOU OGUNGBEMI
42 questions
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