AWS AWS Application Integration and Messaging

Question 1

Which AWS service provides a fully managed message queuing service that enables decoupling of distributed application components?

Accepted Answer

Amazon SQS

Answer

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

Question 2

What is the maximum message retention period for Amazon SQS?

Accepted Answer

14 days

Answer

Amazon SQS can retain messages for up to 14 days, with the default retention period being 4 days.

Question 3

Which Amazon SQS queue type guarantees that messages are processed exactly once and in the exact order they are sent?

Accepted Answer

FIFO Queue

Answer

SQS FIFO (First-In-First-Out) queues guarantee that messages are processed exactly once, in the exact order that they are sent, supporting up to 300 TPS.

Question 4

Which AWS service is a fully managed pub/sub messaging service that enables fan-out to multiple endpoints?

Accepted Answer

Amazon SNS

Answer

Amazon SNS (Simple Notification Service) is a managed pub/sub messaging service that enables message fan-out to multiple subscribers including SQS, Lambda, HTTP, and email.

Question 5

What is the purpose of an SQS Dead-Letter Queue (DLQ)?

Accepted Answer

To store messages that cannot be successfully processed

Answer

A Dead-Letter Queue receives messages that have failed processing a specified number of times, allowing you to isolate and analyze problematic messages.

AWS Practice Test

AWS Practice Test

AWS AWS Application Integration and Messaging