Exam AWS Certified Database - Specialty topic 1 question 52 discussion

Exam question from Amazon's AWS Certified Database - Specialty

Question #: 52
Topic #: 1

[All AWS Certified Database - Specialty Questions]

A user has a non-relational key-value database. The user is looking for a fully managed AWS service that will offload the administrative burdens of operating and scaling distributed databases. The solution must be cost-effective and able to handle unpredictable application traffic.
What should a Database Specialist recommend for this user?

A. Create an Amazon DynamoDB table with provisioned capacity mode
B. Create an Amazon DocumentDB cluster
C. Create an Amazon DynamoDB table with on-demand capacity mode
D. Create an Amazon Aurora Serverless DB cluster

Show Suggested Answer

Suggested Answer: C 🗳️

by 2025flakyt at Dec. 10, 2021, 12:25 p.m.

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jove

Highly Voted 3 years, 4 months ago

Selected Answer: C

Key-value database -> DynamoDB Capable of dealing with unexpected application traffic -> on-demand capacity mode

upvoted 6 times

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Pranava_GCP

Most Recent 1 year, 8 months ago

Selected Answer: C

C. Create an Amazon DynamoDB table with on-demand capacity mode https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.ReadWriteCapacityMode.html#HowItWorks.OnDemand

upvoted 1 times

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aviathor

1 year, 11 months ago

Selected Answer: A

"With provisioned capacity you can also use auto scaling to automatically adjust your table’s capacity based on the specified utilization rate to ensure application performance, and also to potentially reduce costs. To configure auto scaling in DynamoDB, set the minimum and maximum levels of read and write capacity in addition to the target utilization percentage." https://docs.aws.amazon.com/wellarchitected/latest/serverless-applications-lens/capacity.html

upvoted 1 times

ajndcjeandca

1 year, 9 months ago

If auto scaling was mentioned in the option then that would’ve been the most cost effective solution but since it is not mentioned C seems to be more appropriate

upvoted 1 times

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novice_expert

3 years ago

Selected Answer: C

C. Create an Amazon DynamoDB table with on-demand capacity mode

upvoted 1 times

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2025flakyt

3 years, 5 months ago

C is the answer A key-value database is a type of nonrelational database that uses a simple key-value method to store data. A key-value database stores data as a collection of key-value pairs in which a key serves as a unique identifier. On-demand mode is a good option to create new tables with unknown workloads. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/HowItWorks.ReadWriteCapacityMode.html#HowItWorks.OnDemand

upvoted 2 times

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