AWS Certified Developer Associate Practice Exam

Question: 1 / 400

Is SNS a pull-based service rather than a push-based service?

True

False

Amazon Simple Notification Service (SNS) is fundamentally a push-based messaging service. This means that SNS is designed to send messages directly to subscribers as soon as they are published to a topic, rather than requiring subscribers to actively retrieve messages. In a push-based system, the sender (SNS in this case) actively delivers messages to the receivers (subscribers), which can include endpoint types such as SMS, email, or HTTP/HTTPS endpoints.

The push nature of SNS allows for real-time notifications and event-driven architectures, where applications can immediately respond to events. This is a key characteristic that distinguishes it from pull-based services, where clients must request or poll for messages from a server.

The statement that SNS is a pull-based service is therefore not accurate, as SNS is explicitly designed to deliver messages automatically as they become available, showcasing its push-based nature.

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It depends on the configuration

Only for certain protocols

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