AWS Certified Data Analytics Specialty 2021 – Hands-On - DynamoDB RCU and WCU – Hands-On

The video tutorial explains the concepts of read and write capacity units (RCU and WCU) in tables, focusing on the ability to switch between capacity modes in DynamoDB. It covers the on-demand capacity mode, which is suitable for unpredictable workloads, and the provisioned capacity mode, which requires understanding and computing reads and writes. The tutorial also introduces the capacity calculator for estimating costs and highlights the benefits of auto scaling, which adjusts capacity based on usage. The lecture concludes with a summary and encourages practice with these settings.

What are the two main capacity modes discussed for DynamoDB tables?

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Explain the difference between on-demand capacity mode and provisioned capacity mode.

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Describe a scenario where on-demand capacity mode would be more beneficial than provisioned capacity mode.

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What factors should you consider when using the capacity calculator for DynamoDB?

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How does auto scaling work in DynamoDB, and what parameters do you need to set?

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