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How can serverless computing reduce costs for a startup with unpredictable traffic?

hard📝 Application Q8 of 15
AWS - Lambda
How can serverless computing reduce costs for a startup with unpredictable traffic?
ABy running all code on local machines instead of cloud
BBy charging only for actual usage, avoiding paying for idle servers
CBy limiting the number of users to reduce load
DBy requiring upfront payment for reserved servers
Step-by-Step Solution
Solution:

  1. Step 1: Understand cost model of serverless

    Serverless charges based on actual function usage, not reserved capacity.

  2. Step 2: Apply to startup with unpredictable traffic

    Paying only for usage avoids costs during low traffic, saving money.

  3. Final Answer:

    By charging only for actual usage, avoiding paying for idle servers -> Option B

  4. Quick Check:

    Serverless cost = pay per use, no idle charges [OK]
Quick Trick: Serverless saves money by billing actual use only [OK]
Common Mistakes:
  • Thinking upfront payments are needed
  • Assuming user limits reduce costs
  • Believing local code runs reduce cloud costs

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