Why might running tests inside containers sometimes cause slower test execution compared to running locally?

hard📝 Conceptual Q10 of 15

Docker - in CI/CD

ADocker automatically limits CPU usage to 10%

BContainer overhead and volume mounts can slow file access

CTests inside containers skip caching mechanisms

DContainers run on separate physical machines always

Step-by-Step Solution

Solution:

Step 1: Understand container overhead
Containers add a small overhead and mounted volumes can slow file reads/writes compared to local disk.
Step 2: Evaluate other options
Docker does not limit CPU by default, caching depends on test setup, and containers usually run on same machine.
Final Answer:
Container overhead and volume mounts can slow file access -> Option B
Quick Check:
Container overhead affects speed sometimes [OK]

Quick Trick: Volume mounts may slow file access inside containers [OK]

Common Mistakes:

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