Cloud Integrations

Question 1

Which service is a fully managed pub/sub messaging service that makes it easy to set up, operate, and send notifications from the cloud, using a push-based system?

a) Simple Notification Service (SNS)
b) Simple Queue Service (SQS)
c) Auto Scaling Groups (ASG)

Answer 1

a) Simple Notification Service (SNS)

Amazon Simple Notification Service (SNS) is a highly available, durable, secure, fully managed pub/sub messaging service that enables you to decouple microservices, distributed systems, and serverless applications. It uses a push-based system.

Question 2

Which principle is mainly applied when using Amazon SQS or Amazon SNS?

a) Scalability
b) Automation
c) Decouple your applications

Answer 2

c) Decouple your applications

When using SQS or SNS, you apply the “decouple your applications” principle. This means that IT systems should be designed in a way that reduces interdependencies—a change or a failure in one component should not cascade to other components.

Question 3

Which service allows you to send, store, and receive messages between software components at any volume, without losing messages or requiring other services to be available, using a pull-based system?

a) Simple Notification Service (SNS)
b) Simple Queue Service (SQS)
c) Auto Scaling Groups (ASG)

Answer 3

b) Simple Queue Service (SQS)

Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. It uses a pull-based system.