DynamoDB - Cost Optimization and Monitoring
A developer tries to reduce costs by purchasing Reserved Capacity but notices no cost reduction. What is a possible mistake?
A developer tries to reduce costs by purchasing Reserved Capacity but notices no cost reduction. What is a possible mistake?
medium📝 Debug Q7 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Reserved Capacity scope
Reserved Capacity applies only to the AWS region where it is purchased.Step 2: Identify why cost reduction failed
If Reserved Capacity is bought in a different region than the table, no cost benefit applies.Final Answer:
They purchased Reserved Capacity for a different AWS region -> Option DQuick Check:
Reserved Capacity region must match table region = C [OK]
Quick Trick: Reserved Capacity applies only in the purchased AWS region [OK]
Common Mistakes:
MISTAKES- Ignoring region mismatch
- Confusing storage size with capacity
- Assuming auto-scaling affects Reserved Capacity
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