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If you increase the storage size of a Cloud SQL instance from 100 GB to 200 GB, how will the monthly storage cost change?

medium📝 Predict Output Q5 of 15
GCP - Cloud SQL and Databases
If you increase the storage size of a Cloud SQL instance from 100 GB to 200 GB, how will the monthly storage cost change?
AIt will double approximately
BIt will stay the same
CIt will increase by 10%
DIt will decrease due to volume discounts
Step-by-Step Solution
Solution:

  1. Step 1: Understand storage pricing

    Storage cost is charged per GB, so doubling storage roughly doubles cost.

  2. Step 2: Evaluate options

    Staying the same or increasing by only 10% underestimates the cost increase. Decreasing due to volume discounts is incorrect, as Cloud SQL does not offer such discounts for storage.

  3. Final Answer:

    It will double approximately -> Option A

  4. Quick Check:

    Storage cost scales linearly with size [OK]
Quick Trick: Storage cost grows roughly linearly with allocated GB [OK]
Common Mistakes:
  • Assuming storage cost is fixed
  • Expecting volume discounts for storage

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