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Question 310 - DBS-C01 discussion

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A company is running a mobile app that has a backend database in Amazon DynamoDB. The app experiences sudden increases and decreases in activity throughout the day. The companys operations team notices that DynamoDB read and write requests are being throttled at different times, resulting in a negative customer experience

Which solution will solve the throttling issue without requiring changes to the app?

A.
Add a DynamoD3 table in a secondary AWS Region. Populate the additional table by using DynamoDB Streams.
Answers
A.
Add a DynamoD3 table in a secondary AWS Region. Populate the additional table by using DynamoDB Streams.
B.
Deploy an Amazon ElastiCache cluster in front of the DynamoDB table.
Answers
B.
Deploy an Amazon ElastiCache cluster in front of the DynamoDB table.
C.
use on-demand capacity mode tor the DynamoDB table.
Answers
C.
use on-demand capacity mode tor the DynamoDB table.
D.
use DynamoDB Accelerator (DAX).
Answers
D.
use DynamoDB Accelerator (DAX).
Suggested answer: C

Explanation:

Option C is correct because it solves the throttling issue without requiring changes to the app. On-demand capacity mode is a flexible billing option for DynamoDB that automatically accommodates your workload as it ramps up or down. With on-demand mode, you pay per request for the data reads and writes your application performs on your tables, and you don't need to specify how much read and write throughput you expect.On-demand mode can handle sudden increases and decreases in activity without throttling, as long as the request rate does not exceed the default table quotas1.To use on-demand mode, you only need to update the table settings in the AWS Management Console or by using the AWS SDK2. You don't need to modify any application logic, as on-demand mode is compatible with existing DynamoDB API calls.

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asked 16/09/2024
Nito Nobel
44 questions
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