D - Amazon SQS is a fully managed message queuing for microservices, distributed systems, and serverless applications.
Elastic Load Balancing automatically distributes incoming application traffic; it doesn’t help with developer work in this context.
Amazon SNS is used for email and notifications to users, not for developers.
Amazon CloudFront is a content delivery network (CDN) service built for securely delivering content to customers. It is not used for loose coupling nor microservices.
It is BOTH SQS and SNS.
AWS SQS - "What is the use of SQS in AWS?
Amazon Simple Queue Service (Amazon SQS) lets you send, store, and receive messages between software components..."
AWS SNS - "Amazon SNS is a managed messaging service for communication, allowing messaging between decoupled microservices applications or directly to users with SMS..."
SNS is not just used for user communication but is a vital part of decoupled event driven architecture.
D. Amazon Simple Queue Service (Amazon SQS)
"Amazon SQS provides a simple and reliable way for customers to decouple and connect components (microservices) together using queues."
https://aws.amazon.com/sqs/#:~:text=Amazon%20SQS%20provides%20a%20simple%20and%20reliable%20way%20for%20customers%20to%20decouple%20and%20connect%20components%20(microservices)%20together%20using%20queues.
Amazon SQS is a fully managed message queuing service that enables decoupling and asynchronous communication between microservices. It provides reliable message delivery and ensures that messages are processed in a scalable and fault-tolerant manner. By using SQS, developers can implement a publish-subscribe pattern or a message queue pattern to enable loosely coupled communication between microservices.
D. simple queue service
What is Amazon SQS used for?
Amazon SQS is a message queue service used by distributed applications to exchange messages through a polling model, and can be used to decouple sending and receiving components.
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