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A Cloud Run service has max instances set to 0 in its configuration. What will happen?

medium📝 Debug Q7 of 15
GCP - Cloud Functions
A Cloud Run service has max instances set to 0 in its configuration. What will happen?
AService scales to unlimited instances
BService runs with exactly 0 instances
CDeployment fails because 0 is invalid
DService scales to 1 instance only
Step-by-Step Solution
Solution:
  1. Step 1: Understand max instances = 0 meaning

    Setting max instances to 0 means no limit on instances; effectively unlimited scaling.
  2. Step 2: Confirm deployment behavior

    Deployment accepts 0 as unlimited; service scales as needed.
  3. Final Answer:

    Service scales to unlimited instances -> Option A
  4. Quick Check:

    Max instances 0 means no limit [OK]
Quick Trick: Max instances 0 means unlimited scaling [OK]
Common Mistakes:
  • Thinking 0 disables service
  • Assuming deployment error on 0
  • Confusing 0 with 1 instance

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