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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
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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, 7 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, 10 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, 8 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
2 years, 12 months 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, 4 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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