Question

A company needs to publish messages to thousands of subscribers simultaneously using a push mechanism. Which AWS service should the company use?

Answer 1

Amazon Simple Notification Service (SNS) is the AWS service recommended for a company to publish messages to thousands of subscribers simultaneously using a push mechanism. It supports various protocols for message delivery and is scalable and reliable.

Step-by-step explanation:

If a company needs to publish messages to thousands of subscribers simultaneously using a push mechanism, the appropriate AWS service to use is Amazon Simple Notification Service (SNS). Amazon SNS is a fully managed messaging service designed for high-throughput, push-based messaging. It allows you to send individual messages or to simultaneously broadcast messages to a large number of subscribers. Moreover, it supports various protocols such as HTTP, HTTPS, email, SMS, and SQS (Amazon's own Simple Queue Service) among others, which means you can deliver notifications to a wide range of clients.

To implement a messaging system using Amazon SNS, you would typically:

1. Create a topic which is an access point for allowing recipients to dynamically subscribe for identical copies of the same notification.
2. Subscribe clients or endpoints to the topic. Each subscription represents a subscriber's interest in receiving notifications about that topic.
3. Publish messages to the topic. When a message is published to a topic, Amazon SNS delivers the message to all subscribers to that topic.

The benefits of using Amazon SNS include its scalability, reliability, and flexibility in terms of integrating with other AWS services and applications