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A VPC Service Controls perimeter is blocking legitimate internal service calls. What should you check to fix this?

medium📝 Debug Q7 of 15
GCP - Cloud IAM Advanced
A VPC Service Controls perimeter is blocking legitimate internal service calls. What should you check to fix this?
AIncrease VM instance sizes
BVerify the access levels and service perimeter configuration
CDisable the perimeter temporarily
DChange the billing account
Step-by-Step Solution
Solution:
  1. Step 1: Identify cause of blocking

    Incorrect access levels or perimeter rules can block legitimate calls.
  2. Step 2: Verify and adjust configuration

    Review and update access levels and perimeter settings to allow needed calls.
  3. Final Answer:

    Verify the access levels and service perimeter configuration -> Option B
  4. Quick Check:

    Fix blocking by checking access levels and perimeter [OK]
Quick Trick: Check access levels and perimeter rules for blocking issues [OK]
Common Mistakes:
  • Disabling perimeter without fixing cause
  • Changing unrelated VM sizes or billing

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