The process of reverting a system to a previous or original version is called what?

• A. Rollback
• B. Upgrade
• C. Patch
• D. Reimage

Answer: (A)

Returning a system to a previous state is rollback. It means undoing changes and restoring the software, settings, and often data to how things were at a known good point in time. This is commonly used after a faulty update, misconfiguration, or a corrupted change, so you can return to a stable configuration without starting from scratch.

Upgrading moves you to a newer version with new features or fixes, not reversing changes. Patching applies fixes to the current version, which again does not revert to an earlier state. Reimaging involves reinstalling the operating system from a clean image, which is a more drastic reset to a base setup and not simply undoing recent changes.