You need to process long-running jobs once and only once. How might you do this?
A) Use an SNS queue and set the visibility timeout to long enough for jobs to process.
B) Use an SQS queue and set the reprocessing timeout to long enough for jobs to process.
C) Use an SQS queue and set the visibility timeout to long enough for jobs to process.
D) Use an SNS queue and set the reprocessing timeout to long enough for jobs to process.

Question

Quizplus · Accepted Answer

SQS (Simple Queue Service) is designed for processing messages once and only once. Setting the visibility timeout ensures that once a message is being processed, it is not visible to other consumers until the timeout expires, preventing duplicate processing.

You Need to Process Long-Running Jobs Once and Only Once