Before committing changes to the certified directory, where must the changes be tested?

• A. In the working directory
• B. In RAM only
• C. In the boot flash
• D. In the image directory

Answer: (A)

Testing in the working directory is the safe, iterative space for validating changes before they move into the certified area. It lets you modify files, run tests, and verify behavior without affecting the device’s live firmware or storage. Testing in RAM would be volatile and won’t persist after a reboot, so it can’t confirm lasting correctness. Testing in the boot flash is risky and inappropriate because that area stores the bootloader and firmware; changing it directly bypasses proper validation and can brick the device. The image directory is meant for final built artifacts, not for experimenting with changes. By testing in the working directory, you ensure changes are sound and reproducible before committing.