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Why might Cloud SQL storage costs increase unexpectedly even if allocated storage size remains the same?

hard📝 Conceptual Q10 of 15
GCP - Cloud SQL and Databases
Why might Cloud SQL storage costs increase unexpectedly even if allocated storage size remains the same?
ABecause CPU usage increased
BDue to automatic backups and transaction log storage
CBecause network egress increased
DDue to changes in instance tier
Step-by-Step Solution
Solution:

  1. Step 1: Identify hidden storage costs

    Backups and transaction logs consume additional storage beyond allocated size.

  2. Step 2: Evaluate other options

    CPU and network egress affect compute and network costs, not storage. Instance tier changes affect compute cost.

  3. Final Answer:

    Due to automatic backups and transaction log storage -> Option B

  4. Quick Check:

    Backups increase storage cost beyond allocated size [OK]
Quick Trick: Backups and logs add to storage cost beyond allocated size [OK]
Common Mistakes:
  • Ignoring backup storage impact
  • Confusing CPU/network with storage costs

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