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AWSIntegration
SQS
Amazon SQS is a managed queue service used to decouple distributed systems and improve reliability through asynchronous communication.
What it does
Managed message queue service in AWS.
When to use
Use SQS when you need reliable asynchronous message delivery between services.
Key Concepts
Queues store messages temporarily.
Consumers poll and process messages.
Visibility timeout prevents duplicate simultaneous processing.
Dead-letter queues help isolate failed messages.
Common Use Cases
Decoupling microservices.
Handling async background jobs.
Buffering work during traffic spikes.
Interview Questions
What is SQS?
What is visibility timeout?
Why use a dead-letter queue?