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Exam AWS Certified Database - Specialty topic 1 question 236 discussion

Exam question from Amazon's AWS Certified Database - Specialty
Question #: 236
Topic #: 1
[All AWS Certified Database - Specialty Questions]

An online gaming company is using an Amazon DynamoDB table in on-demand mode to store game scores. After an intensive advertisement campaign in South
America, the average number of concurrent users rapidly increases from 100,000 to 500,000 in less than 10 minutes every day around 5 PM.
The on-call software reliability engineer has observed that the application logs contain a high number of DynamoDB throttling exceptions caused by game score insertions around 5 PM. Customer service has also reported that several users are complaining about their scores not being registered.
How should the database administrator remediate this issue at the lowest cost?

  • A. Enable auto scaling and set the target usage rate to 90%.
  • B. Switch the table to provisioned mode and enable auto scaling.
  • C. Switch the table to provisioned mode and set the throughput to the peak value.
  • D. Create a DynamoDB Accelerator cluster and use it to access the DynamoDB table.
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Suggested Answer: B 🗳️
by mbar94 at Sept. 7, 2022, 11:06 a.m.
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aviathor
1 year, 11 months ago
Selected Answer: B
That is the most complete answer. A looks plausible, but you cannot enable auto-scaling in on-demand mode.
upvoted 4 times
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RBSK
2 years, 4 months ago
https://aws.amazon.com/premiumsupport/knowledge-center/dynamodb-table-throttled/
upvoted 2 times
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mbar94
2 years, 8 months ago
Selected Answer: B
B is fine, A is too little buffer with 90% target utilization rate.
upvoted 4 times
RBSK
2 years, 4 months ago
Q claims, lowest cost. Opt.A is lower than B. Hence unsure of B as a right Ans.
upvoted 1 times
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