Exam AWS Certified Solutions Architect - Associate SAA-C02 All Questions

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Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 16 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C02

Question #: 16
Topic #: 1

[All AWS Certified Solutions Architect - Associate SAA-C02 Questions]

A solutions architect is designing a new service behind Amazon API Gateway. The request patterns for the service will be unpredictable and can change suddenly from 0 requests to over 500 per second. The total size of the data that needs to be persisted in a backend database is currently less than 1 GB with unpredictable future growth. Data can be queried using simple key-value requests.
Which combination of AWS services would meet these requirements? (Choose two.)

A. AWS Fargate
B. AWS Lambda
C. Amazon DynamoDB
D. Amazon EC2 Auto Scaling
E. MySQL-compatible Amazon Aurora

Show Suggested Answer

Suggested Answer: BC 🗳️

by Kossa at June 2, 2020, 4:59 a.m.

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Kossa

Highly Voted 3 years, 9 months ago

Ans is B & C

upvoted 67 times

greypig

3 years, 8 months ago

B and C are ok

upvoted 5 times

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aguy9

3 years, 8 months ago

Yes B and C

upvoted 3 times

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moglie

Highly Voted 3 years, 9 months ago

Keywords: Key-value = Dynamo DB, API gateway + unpredicatable req.pattern = Lambda. Answer: B and C

upvoted 38 times

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48cd959

Most Recent 1 year, 3 months ago

Selected Answer: BC

Answer B and C - Clue - Dynamo DB for unpredicatble load and auto scaling, Lambda for querying data.

upvoted 1 times

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Sachin032

2 years, 5 months ago

Selected Answer: BC

B & C is perfect combination

upvoted 1 times

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NikaCZ

2 years, 7 months ago

Selected Answer: BC

Lambda and Dynamo DB

upvoted 1 times

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bloless1s

2 years, 10 months ago

definitely B&C will be a choice

upvoted 1 times

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Venki_dev

3 years, 3 months ago

Selected Answer: BC

AWS Lambda , DynamoDB and API Gateway are all cousins, always together

upvoted 11 times

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sri29

3 years, 3 months ago

DynamoDB only supports the Object of 400KB. Question asking for Data size is less than a GB and Key-Value Query Data also.

upvoted 1 times

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dziwa

3 years, 5 months ago

if B,C , what about the time limitation 15 minutes of Lambda?

upvoted 2 times

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Sandy1971

3 years, 5 months ago

Selected Answer: BC

A,C is very strong contender with B,C but later is the winner. Rapid Scaling is the Keyword in the Question https://www.trek10.com/blog/fargate-vs-lambda "Lambda particularly shines in two areas - scale to zero, and rapid scaling. The fact that you don’t have to pay for idle applications is very useful for low traffic workloads and dev environments. The ability to scale from 0-1000 rapidly is important for spiky, unpredictable traffic."

upvoted 4 times

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gargaditya

3 years, 7 months ago

Lambda and Dynamo DB (B,C) The request patterns for the service will be unpredictable = Lambda/Fargate with autoscaling- But option for autoscaling is on EC2('ECS' has 2 deployment modes-Fargate and EC2, Fargate is serverless) ,so go with Lambda (Fargate will not scale on its own,need Autoscaling to be applied) unpredictable future growth = DynamoDB/Aurora/RDS with autoscaling Key-value = Dynamo DB and not Aurora(SQL based queries)

upvoted 6 times

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ShehuUsman

3 years, 8 months ago

The request patterns for the service will be unpredictable = Lambda unpredictable future growth = DynamoDB Answer is B & C

upvoted 3 times

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cloudset

3 years, 8 months ago

B & C If you are confused between A & B https://www.bluematador.com/blog/serverless-in-aws-lambda-vs-fargate A - Incorrect: Fargate is a good choice for consistent workloads or applications that want to use docker generally. B - Correct - Good use cases for Lambda include unpredictable or inconsistent workloads and applications that can be easily expressed as a single function with predictable resource usage on each invocation.

upvoted 7 times

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