Crucial Exams

AWS Certified Data Engineer Associate DEA-C01 Practice Question

A company ingests IoT sensor data into a DynamoDB table. Baseline traffic is 2,000 writes/s, but spikes to 20,000 writes/s for 10 minutes several times daily. Provisioning 20,000 WCU constantly avoids throttling but is costly. They want a cheaper solution that prevents throttled writes during spikes and needs little operations. Which option meets these needs?

  • Create a scheduled scaling action that increases the table to 20,000 WCU every hour and reduces it afterward.

  • Convert the table to on-demand capacity mode.

  • Enable DynamoDB auto scaling with a minimum of 2,000 and a maximum of 20,000 WCU.

  • Shard the data across ten new DynamoDB tables chosen by a hash of device ID to distribute the write load.

AWS Certified Data Engineer Associate DEA-C01
Data Ingestion and Transformation
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