Recall & Review
beginner
What is the On-Demand capacity mode in DynamoDB?
On-Demand capacity mode lets DynamoDB handle all the read and write traffic automatically. You pay only for the requests you use, without setting capacity limits.
Click to reveal answer
beginner
What does Provisioned capacity mode require you to do in DynamoDB?
Provisioned capacity mode requires you to specify the number of reads and writes per second your table needs. You pay for this capacity whether you use it or not.
Click to reveal answer
intermediate
When should you choose On-Demand capacity mode?
Choose On-Demand if your app has unpredictable or variable traffic. It scales automatically and is simple to use without capacity planning.
Click to reveal answer
intermediate
What is a benefit of Provisioned capacity mode?
Provisioned mode can be more cost-effective for steady, predictable workloads because you pay a fixed rate for capacity.
Click to reveal answer
intermediate
What happens if your app exceeds Provisioned capacity limits in DynamoDB?
If you exceed provisioned capacity, requests may be throttled, causing delays or errors until capacity is increased or traffic decreases.
Click to reveal answer
Which DynamoDB capacity mode automatically adjusts to your app's traffic without manual setup?
✗ Incorrect
On-Demand mode automatically handles traffic and scales without manual capacity settings.
In Provisioned capacity mode, what do you need to specify?
✗ Incorrect
Provisioned mode requires setting read and write capacity units per second.
What is a risk of using Provisioned capacity mode with unpredictable traffic?
✗ Incorrect
If traffic exceeds provisioned limits, requests can be throttled causing delays.
Which capacity mode charges you only for the requests you make?
✗ Incorrect
On-Demand charges based on actual request usage, no fixed capacity.
For a steady workload with predictable traffic, which mode is usually more cost-effective?
✗ Incorrect
Provisioned mode is cheaper for steady, predictable workloads due to fixed capacity pricing.
Explain the main differences between DynamoDB's On-Demand and Provisioned capacity modes.
Think about how each mode handles traffic and billing.
You got /5 concepts.
Describe what happens if your application exceeds the Provisioned capacity limits in DynamoDB.
Consider the impact on app performance and user experience.
You got /4 concepts.