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Amazon Simple Queue Service (Amazon SQS) is a cloud computing tool that distributes the communication of different processes, applications and services hosted on the same system or network. Amazon SQS provides a queued cloud platform for message creation, transport and dissemination. Amazon SQS is part of Amazon Web Services (AWS).
Amazon SQS provides interprocess and intercomponent communication for services in the AWS suite, including Amazon Simple Storage Service (Amazon S3) and Amazon Elastic Compute Cloud (Amazon EC2). Amazon SQS messages are stored on the cloud server in closest proximity to the host application, reducing latency and providing instant availability to the consuming process.
Amazon SQS enforces security and access control features over these message queues and only allows access to authorized users, application and processes. Amazon SQS is primarily implemented in scenarios where a complete application or workflow process is distributed across different remote servers and requires a specialized messaging system for the communication and completion of user generated requests.