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Question 353 - SOA-C02 discussion

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A company has an application that collects notifications from thousands of alarm systems. The notifications include alarm notifications and information notifications. The information notifications include the system arming processes, disarming processes, and sensor status.

All notifications are kept as messages in an Amazon Simple Queue Service (Amazon SQS) queue. Amazon EC2 instances that are in an Auto Scaling group process the messages. A SysOps administrator needs to implement a solution that prioritizes alarm notifications over information notifications.

Which solution will meet these requirements?

A.
Adjust the Auto Scaling group to scale faster when a high number of messages is in the queue.
Answers
A.
Adjust the Auto Scaling group to scale faster when a high number of messages is in the queue.
B.
Use the Amazon Simple Notification Service (Amazon SNS) fanout feature with Amazon SQS to send the notifications in parallel to all the EC2 instances.
Answers
B.
Use the Amazon Simple Notification Service (Amazon SNS) fanout feature with Amazon SQS to send the notifications in parallel to all the EC2 instances.
C.
Add an Amazon DynamoDB stream to accelerate the message processing.
Answers
C.
Add an Amazon DynamoDB stream to accelerate the message processing.
D.
Create a queue for alarm notifications and a queue for information notifications. Update the application to collect messages from the alarm notifications queue first.
Answers
D.
Create a queue for alarm notifications and a queue for information notifications. Update the application to collect messages from the alarm notifications queue first.
Suggested answer: D

Explanation:

To prioritize alarm notifications over information notifications in an Amazon SQS environment, creating separate queues for each type of notification is the best approach. This allows the application processing the queues to prioritize fetching messages from the alarm notifications queue first. Option D directly addresses the need for prioritization without complicating the existing infrastructure. This setup is supported by best practices for using Amazon SQS, where using multiple queues to segregate message types is a recommended strategy Amazon SQS Best Practices.

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asked 16/09/2024
Arnold Bronson TCHOFFO
44 questions
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