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If a GCP service has a minimum instance count set to 3 and the current load is very low, how many instances will be running?

medium📝 service behavior Q5 of 15
GCP - Cloud Run
If a GCP service has a minimum instance count set to 3 and the current load is very low, how many instances will be running?
A3 instances will run due to minimum instance setting
B0 instances will run because load is low
C1 instance will run regardless of minimum setting
DInstances will scale down to zero automatically
Step-by-Step Solution
Solution:
  1. Step 1: Understand minimum instance count effect

    Minimum instance count ensures at least that many instances run regardless of load.
  2. Step 2: Apply to current low load scenario

    Even with low load, 3 instances will remain running due to minimum setting.
  3. Final Answer:

    3 instances will run due to minimum instance setting -> Option A
  4. Quick Check:

    Minimum instances enforce minimum running count [OK]
Quick Trick: Minimum instance count prevents scaling below set number [OK]
Common Mistakes:
  • Assuming instances scale down to zero ignoring minimum
  • Believing only one instance runs by default
  • Confusing minimum with target concurrency

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