Exam AWS Certified Developer Associate topic 1 question 400 discussion

Exam question from Amazon's AWS Certified Developer Associate

Question #: 400
Topic #: 1

[All AWS Certified Developer Associate Questions]

A company built an online event platform. For each event, the company organizes quizzes and generates leaderboards that are based on the quiz scores. The company stores the leaderboard data in Amazon DynamoDB and retains the data for 30 days after an event is complete. The company then uses a scheduled job to delete the old leaderboard data

The DynamoDB table is configured with a fixed write capacity. During the months when many events occur, the DynamoDB write API requests are throttled when the scheduled delete job runs.

A developer must create a long-term solution that deletes the old leaderboard data and optimizes write throughput.

Which solution meets these requirements?

A. Configure a TTL attribute for the leaderboard data.
B. Use DynamoDB Streams to schedule and delete the leaderboard data
C. Use AWS Step Functions to schedule and delete the leaderboard data.
D. Set a higher write capacity when the scheduled delete job runs.

Show Suggested Answer

Suggested Answer: A 🗳️

by KT_Yu at Jan. 20, 2023, 8:31 p.m.

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AWSdeveloper08

2 years, 1 month ago

Selected Answer: A

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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