Exam AWS Certified Developer Associate topic 1 question 153 discussion

Exam question from Amazon's AWS Certified Developer Associate

Question #: 153
Topic #: 1

[All AWS Certified Developer Associate Questions]

A developer needs to modify an application architecture to meet new functional requirements. Application data is stored in Amazon DynamoDB and processed for analysis in a nightly batch. The system analysts do not want to wait until the next day to view the processed data and have asked to have it available in near-real time.

Which application architecture pattern would enable the data to be processed as it is received?

A. Event driven
B. Client-server driven
C. Fan-out driven
D. Schedule driven

Show Suggested Answer

Suggested Answer: A 🗳️

by sionita at Nov. 21, 2022, 3:12 p.m.

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Comments

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AsmaZoheb

1 year, 5 months ago

Selected Answer: A

I think A, don't need to wait schedule , message ,batch, just focus on real-time event-trigger and process

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llw33

1 year, 9 months ago

Odd question. Let's have a look at "fan-out" definition: "In message-oriented middleware solutions, fan-out is a messaging pattern used to model an information exchange that implies the delivery (or spreading) of a message to one or multiple destinations possibly in parallel, and not halting the process that executes the messaging to wait for any response to that message". https://en.wikipedia.org/wiki/Fan-out_(software) Can't choose between A and C.

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rcaliandro

2 years ago

Selected Answer: A

Event driven architecture is the correct answer

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Groot2

2 years, 3 months ago

I found some useful explanations of event driven arch. https://ably.com/blog/introduction-event-driven-architecture

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Jay1299

2 years, 4 months ago

I think it should be D! A-Event Driven archi' are triggered to run when there is an event like a notification, data push etc. B-Client-Server does not make sense at all C-Fan-out is also similar to A, like SQS-SNS fanout archi' when SNS receives a notificaiton and SQS will process the data . The question asks about analysis to be done in the night batch and to be processed by the next day. Hence Scheduling it using CRON jobs, Eventbridge, Lambda Functions can be used

upvoted 2 times

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