How should the company re-design its architecture to address this requirement?

A company launched a website that accepts high-quality photos and turns them into a downloadable video montage. The website offers a free and a premium account that guarantees faster processing. All requests by both free and premium members go through a single SQS queue and then processed by a group of EC2 instances that generate the videos. The company needs to ensure that the premium users who paid for the service have higher priority than the free members.

How should the company re-design its architecture to address this requirement?
A . For the requests made by premium members, set a higher priority in the SQS queue so it will be processed first compared to the requests made by free members.
B . Use Amazon Kinesis to process the photos and generate the video montage in real-time.
C . Create an SQS queue for free members and another one for premium members. Configure your EC2 instances to consume messages from the premium queue first and if it is empty, poll from the free members’ SQS queue.
D . Use Amazon S3 to store and process the photos and then generate the video montage afterward.

View Answer

Answer: C

Explanation:

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. SQS eliminates the complexity and overhead associated with managing and operating message-oriented middleware and empowers developers to focus on differentiating work. Using SQS, you can send, store, and receive messages between software components at any volume without losing messages or requiring other services to be available.

In this scenario, it is best to create 2 separate SQS queues for each type of member. The SQS queues for the premium members can be polled first by the EC2 Instances and once completed, the messages from the free members can be processed next.

Hence, the correct answer is: Create an SQS queue for free members and another one for premium members. Configure your EC2 instances to consume messages from the premium queue first and if it is empty, poll from the free members’ SQS queue.

The option that says: For the requests made by premium members, set a higher priority in the SQS queue so it will be processed first compared to the requests made by free members is incorrect as you cannot set a priority to individual items in the SQS queue.

The option that says: Using Amazon Kinesis to process the photos and generate the video montage in real time is incorrect as Amazon Kinesis is used to process streaming data and it is not applicable in this scenario.

The option that says: Using Amazon S3 to store and process the photos and then generating the video

montage afterward is incorrect as Amazon S3 is used for durable storage and not for processing data.

Explanation:

Reference:

https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-best-practices.

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Check out this Amazon SQS Cheat Sheet:

https://tutorialsdojo.com/amazon-sqs/