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If a DynamoDB table is set to on-demand capacity mode, what happens when traffic suddenly spikes to 1000 requests per second?

medium📝 Predict Output Q5 of 15
AWS - DynamoDB
If a DynamoDB table is set to on-demand capacity mode, what happens when traffic suddenly spikes to 1000 requests per second?
ARequests above the initial limit are throttled until capacity is increased
BYou must manually increase capacity units to handle the spike
CDynamoDB instantly scales to handle the spike without throttling
DThe table switches automatically to provisioned mode
Step-by-Step Solution
Solution:

  1. Step 1: Recall on-demand mode behavior

    On-demand mode automatically scales to handle sudden traffic spikes.

  2. Step 2: Confirm no manual intervention needed

    It does not require manual capacity changes and avoids throttling during spikes.

  3. Final Answer:

    DynamoDB instantly scales to handle the spike without throttling -> Option C

  4. Quick Check:

    On-demand = instant scaling, no throttling [OK]
Quick Trick: On-demand mode auto-scales instantly for traffic spikes [OK]
Common Mistakes:
MISTAKES
  • Thinking manual capacity increase is needed
  • Assuming throttling occurs
  • Believing mode switches automatically

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