SAP-C02 Continuous Improvement for Existing Solutions Practice Question

A company is using Amazon DynamoDB as the primary database for a web application. The application experiences occasional throttling on writes. The company wants to implement a solution that automatically increases write capacity during traffic spikes. Which solution should they use?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Enable DynamoDB Auto Scaling for write capacity.

DynamoDB Auto Scaling automatically adjusts the provisioned write capacity based on actual traffic patterns, preventing throttling during spikes while optimizing costs. Option A is wrong because On-Demand capacity mode handles spikes but incurs higher costs and does not involve manual auto-scaling configuration. Option B is wrong because DAX is an in-memory cache that reduces read latency, not a scaling solution for write capacity. Option C is wrong because Global Tables provide multi-region replication and disaster recovery but do not address write throttling in a single region.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Switch to DynamoDB On-Demand capacity mode.
Why it's wrong here
On-Demand handles sudden spikes but is not automatic scaling based on utilization.
✗
Implement DynamoDB Accelerator (DAX) for caching.
Why it's wrong here
DAX reduces read load, not write throttling.
✗
Use DynamoDB Global Tables to distribute writes.
Why it's wrong here
Global Tables do not increase capacity in one region.
✓
Enable DynamoDB Auto Scaling for write capacity.
Why this is correct
Auto Scaling adjusts capacity based on actual utilization.

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SAP-C02 Continuous Improvement for Existing Solutions Practice Question

Why each option matters

Option-by-option breakdown

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