DynamoDB - Cost Optimization and Monitoring
Why might on-demand mode be more expensive than provisioned mode for a steady, predictable workload?
Why might on-demand mode be more expensive than provisioned mode for a steady, predictable workload?
hard🧠 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Compare cost models for steady workloads
Provisioned mode allows reserving capacity at lower cost for steady usage, while on-demand charges per request without discounts.Step 2: Identify why on-demand can be costlier
On-demand's pay-per-request pricing can be more expensive when usage is predictable and high, as it lacks reserved capacity discounts.Final Answer:
Because on-demand charges per request without discounts for reserved capacity -> Option DQuick Check:
Steady workload cost advantage = provisioned mode [OK]
Quick Trick: On-demand costs more for steady high traffic without reserved discounts [OK]
Common Mistakes:
MISTAKES- Thinking on-demand requires manual capacity
- Assuming on-demand has fixed fees
- Believing on-demand throttles more often by default
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