Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 96 discussion

Exam question from Amazon's AWS Certified Developer - Associate DVA-C02

Question #: 96
Topic #: 1

[All AWS Certified Developer - Associate DVA-C02 Questions]

A developer is creating a service that uses an Amazon S3 bucket for image uploads. The service will use an AWS Lambda function to create a thumbnail of each image. Each time an image is uploaded, the service needs to send an email notification and create the thumbnail. The developer needs to configure the image processing and email notifications setup.

Which solution will meet these requirements?

A. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure S3 event notifications with a destination of the SNS topic. Subscribe the Lambda function to the SNS topic. Create an email notification subscription to the SNS topic.
B. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure S3 event notifications with a destination of the SNS topic. Subscribe the Lambda function to the SNS topic. Create an Amazon Simple Queue Service (Amazon SQS) queue. Subscribe the SQS queue to the SNS topic. Create an email notification subscription to the SQS queue.
C. Create an Amazon Simple Queue Service (Amazon SQS) queue. Configure S3 event notifications with a destination of the SQS queue. Subscribe the Lambda function to the SQS queue. Create an email notification subscription to the SQS queue.
D. Create an Amazon Simple Queue Service (Amazon SQS) queue. Send S3 event notifications to Amazon EventBridge. Create an EventBridge rule that runs the Lambda function when images are uploaded to the S3 bucket. Create an EventBridge rule that sends notifications to the SQS queue. Create an email notification subscription to the SQS queue.

Show Suggested Answer

Suggested Answer: A 🗳️

by MrTee at April 21, 2023, 8:33 p.m.

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MrTee

Highly Voted 2 years, 2 months ago

Selected Answer: A

This solution will allow the developer to receive notifications for each image uploaded to the S3 bucket, and also create a thumbnail using the Lambda function. The SNS topic will serve as a trigger for both the Lambda function and the email notification subscription. When an image is uploaded, S3 will send a notification to the SNS topic, which will trigger the Lambda function to create the thumbnail and also send an email notification to the specified email address.

upvoted 17 times

payireb682

1 year, 6 months ago

Thanks. As mentioned Multiple subscription can be added for SNS

upvoted 5 times

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jipark

1 year, 10 months ago

greate !! send email do not need SQS.

upvoted 2 times

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sumanshu

Most Recent 6 months ago

Selected Answer: A

B) Eliminated - The SQS queue is not required because SNS can directly notify both the Lambda function and the email service C) Eliminated - SQS cannot send email notifications. Also, The Lambda function would need to poll the SQS queue, adding unnecessary complexity. D) Eliminated - Using EventBridge to forward S3 event notifications introduces unnecessary complexity.

upvoted 1 times

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Tluszczyk

11 months, 2 weeks ago

None of these is really an optimal solution to the problem, which is a little annoying really

upvoted 1 times

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65703c1

1 year, 1 month ago

Selected Answer: A

A is the correct answer.

upvoted 1 times

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SerialiDr

1 year, 5 months ago

Selected Answer: A

SNS can be used to fan out notifications. When an image is uploaded to the S3 bucket, an event notification is sent to the SNS topic. The Lambda function is subscribed to this topic to create a thumbnail, and an email subscription can also be configured on the same SNS topic to send email notifications. This approach meets all requirements with minimal components.

upvoted 2 times

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