Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 400 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03

Question #: 400
Topic #: 1

[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

A meteorological startup company has a custom web application to sell weather data to its users online. The company uses Amazon DynamoDB to store its data and wants to build a new service that sends an alert to the managers of four internal teams every time a new weather event is recorded. The company does not want this new service to affect the performance of the current application.

What should a solutions architect do to meet these requirements with the LEAST amount of operational overhead?

A. Use DynamoDB transactions to write new event data to the table. Configure the transactions to notify internal teams.
B. Have the current application publish a message to four Amazon Simple Notification Service (Amazon SNS) topics. Have each team subscribe to one topic.
C. Enable Amazon DynamoDB Streams on the table. Use triggers to write to a single Amazon Simple Notification Service (Amazon SNS) topic to which the teams can subscribe.
D. Add a custom attribute to each record to flag new items. Write a cron job that scans the table every minute for items that are new and notifies an Amazon Simple Queue Service (Amazon SQS) queue to which the teams can subscribe.

Show Suggested Answer

Suggested Answer: C 🗳️

by [deleted] at March 10, 2023, 4:55 p.m.

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Buruguduystunstugudunstuy

Highly Voted 1 year, 4 months ago

Selected Answer: C

The best solution to meet these requirements with the least amount of operational overhead is to enable Amazon DynamoDB Streams on the table and use triggers to write to a single Amazon Simple Notification Service (Amazon SNS) topic to which the teams can subscribe. This solution requires minimal configuration and infrastructure setup, and Amazon DynamoDB Streams provide a low-latency way to capture changes to the DynamoDB table. The triggers automatically capture the changes and publish them to the SNS topic, which notifies the internal teams.

upvoted 15 times

Buruguduystunstugudunstuy

1 year, 4 months ago

Answer A is not a suitable solution because it requires additional configuration to notify the internal teams, and it could add operational overhead to the application. Answer B is not the best solution because it requires changes to the current application, which may affect its performance, and it creates additional work for the teams to subscribe to multiple topics. Answer D is not a good solution because it requires a cron job to scan the table every minute, which adds additional operational overhead to the system. Therefore, the correct answer is C. Enable Amazon DynamoDB Streams on the table. Use triggers to write to a single Amazon SNS topic to which the teams can subscribe.

upvoted 6 times

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Manimgh

Most Recent 4 months ago

Selected Answer: C

Sends an alert = SNS

upvoted 1 times

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Guru4Cloud

11 months, 3 weeks ago

Selected Answer: C

Enable Amazon DynamoDB Streams on the table. Use triggers to write to a single Amazon Simple Notification Service (Amazon SNS) topic to which the teams can subscribe

upvoted 4 times

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james2033

1 year, 1 month ago

Selected Answer: C

Question keyword: "sends an alert", a new weather event is recorded". Answer keyword C "Amazon DynamoDB Streams on the table", "Amazon Simple Notification Service" (Amazon SNS). Choose C. Easy question. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Streams.html https://aws.amazon.com/blogs/database/dynamodb-streams-use-cases-and-design-patterns/

upvoted 4 times

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TariqKipkemei

1 year, 2 months ago

Selected Answer: C

Best answer is C

upvoted 3 times

TariqKipkemei

10 months ago

DynamoDB Streams captures a time-ordered sequence of item-level modifications in any DynamoDB table and stores this information in a log for up to 24 hours. This capture activity can also invoke triggers to write the event to a single Amazon Simple Notification Service (Amazon SNS) topic to which the teams can subscribe to.

upvoted 6 times

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