A company expects highly variable traffic with unpredictable spikes. To balance cost and performance, which DynamoDB capacity mode and strategy should they use?

hard📝 Application Q8 of 15

AWS - DynamoDB

AUse on-demand mode but limit traffic to avoid throttling

BUse provisioned capacity mode with fixed units to avoid unexpected costs

CUse provisioned capacity mode with auto-scaling enabled to adjust capacity dynamically

DUse on-demand capacity mode to automatically handle traffic spikes without provisioning

Step-by-Step Solution

Solution:

Step 1: Analyze traffic pattern
Unpredictable spikes require flexible capacity without manual provisioning.
Step 2: Evaluate capacity modes
On-demand mode automatically scales and charges per request, ideal for variable traffic.
Step 3: Consider auto-scaling
Provisioned with auto-scaling helps but may lag and requires configuration.
Final Answer:
On-demand capacity mode -> Option D
Quick Check:
On-demand auto-scales instantly [OK]

Quick Trick: On-demand mode best for unpredictable spikes [OK]

Common Mistakes:

Choosing provisioned mode without auto-scaling for variable traffic
Assuming auto-scaling is instantaneous
Limiting traffic in on-demand mode unnecessarily

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More AWS Quizzes

A company expects highly variable traffic with unpredictable spikes. To balance cost and performance, which DynamoDB capacity mode and strategy should they use?

Step 1: Analyze traffic pattern

Step 2: Evaluate capacity modes

Step 3: Consider auto-scaling

Final Answer:

Quick Check:

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