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Question 732 - SAA-C03 discussion

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A company has an application that customers use to upload images to an Amazon S3 bucket Each night, the company launches an Amazon EC2 Spot Fleet that processes all the images that the company received that day. The processing for each image takes 2 minutes and requires 512 MB of memory.

A solutions architect needs to change the application to process the images when the images are uploaded

Which change will meet these requirements MOST cost-effectively?

A.
Use S3 Event Notifications to write a message with image details to an Amazon Simple Queue Service (Amazon SQS) queue. Configure an AWS Lambda function to read the messages from the queue and to process the images
Answers
A.
Use S3 Event Notifications to write a message with image details to an Amazon Simple Queue Service (Amazon SQS) queue. Configure an AWS Lambda function to read the messages from the queue and to process the images
B.
Use S3 Event Notifications to write a message with image details to an Amazon Simple Queue Service (Amazon SQS) queue Configure an EC2 Reserved Instance to read the messages from the queue and to process the images.
Answers
B.
Use S3 Event Notifications to write a message with image details to an Amazon Simple Queue Service (Amazon SQS) queue Configure an EC2 Reserved Instance to read the messages from the queue and to process the images.
C.
Use S3 Event Notifications to publish a message with image details to an Amazon Simple Notification Service (Amazon SNS) topic. Configure a container instance in Amazon Elastic Container Service (Amazon ECS) to subscribe to the topic and to process the images.
Answers
C.
Use S3 Event Notifications to publish a message with image details to an Amazon Simple Notification Service (Amazon SNS) topic. Configure a container instance in Amazon Elastic Container Service (Amazon ECS) to subscribe to the topic and to process the images.
D.
Use S3 Event Notifications to publish a message with image details to an Amazon Simple Notification Service (Amazon SNS) topic. to subscribe to the topic and to process the images.
Answers
D.
Use S3 Event Notifications to publish a message with image details to an Amazon Simple Notification Service (Amazon SNS) topic. to subscribe to the topic and to process the images.
Suggested answer: A

Explanation:

Understanding the Requirement: The company needs to process images as they are uploaded to S3 in a cost-effective manner, currently using an EC2 Spot Fleet for nightly processing.

Analysis of Options:

S3 Event Notifications to SQS and Lambda: This setup allows for event-driven processing with Lambda, which scales automatically based on the number of messages in the queue. It is cost-effective as Lambda charges are based on the compute time used.

S3 Event Notifications to SQS and EC2 Reserved Instance: Involves managing EC2 instances, which adds operational overhead and is less cost-effective.

S3 Event Notifications to SNS and ECS: More complex and potentially less cost-effective compared to using Lambda for simple processing tasks.

S3 Event Notifications to SNS: Requires additional configuration and management to process messages.

Best Solution:

S3 Event Notifications to SQS and Lambda: This option is the most cost-effective and scalable, leveraging AWS managed services with minimal operational overhead.

Amazon S3 Event Notifications

Amazon SQS

AWS Lambda

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asked 16/09/2024
Jason Childers
35 questions
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