Exam AWS Certified Database - Specialty topic 1 question 267 discussion

Exam question from Amazon's AWS Certified Database - Specialty

Question #: 267
Topic #: 1

[All AWS Certified Database - Specialty Questions]

A startup company is developing electric vehicles. These vehicles are expected to send real-time data to the AWS Cloud for data analysis. This data will include trip metrics, trip duration, and engine temperature. The database team decides to store the data for 15 days using Amazon DynamoDB.

How can the database team achieve this with the LEAST operational overhead?

A. Implement Amazon DynamoDB Accelerator (DAX) on the DynamoDB table. Use Amazon EventBridge (Amazon CloudWatch Events) to poll the DynamoDB table and drop items after 15 days
B. Turn on DynamoDB Streams for the DynamoDB table to push the data from DynamoDB to another storage location. Use AWS Lambda to poll and terminate items older than 15 days.
C. Turn on the TTL feature for the DynamoDB table. Use the TTL attribute as a timestamp and set the expiration of items to 15 days
D. Create an AWS Lambda function to poll the list of DynamoDB tables every 15 days. Drop the existing table and create a new table

Show Suggested Answer

Suggested Answer: C 🗳️

by Sab at Nov. 30, 2022, 11:21 p.m.

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Pranava_GCP

1 year, 9 months ago

Selected Answer: C

C. Turn on the TTL feature for the DynamoDB table. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/TTL.html "Amazon DynamoDB Time to Live (TTL) allows you to define a per-item timestamp to determine when an item is no longer needed. Shortly after the date and time of the specified timestamp, DynamoDB deletes the item from your table and only consumes throughput when the deletion is replicated to additional Regions. TTL is provided at no extra cost as a means to reduce stored data volumes by retaining only the items that remain current for your workload’s needs."

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