What is one reason to back up the PCE after provisioning policy changes?

Backing up the Policy Compute Engine (PCE) after provisioning policy changes is critical for several reasons, one of which is to ensure security against data corruption. When policy changes are made, there’s a risk that these alterations could inadvertently introduce errors or corrupt the existing configurations. By having a backup in place, you create a safety net that allows for restoration to a known state prior to the changes. This is particularly essential in environments where configurations are complex and any corruption can lead to significant disruptions in policy enforcement and network segmentation.

Other aspects like reverting to previous configurations or documenting changes can indeed be useful but are secondary considerations compared to the immediate need for protecting against potential data corruption. Ensuring backup integrity is also important, but it relates more to the reliability and verification of the backup process itself rather than the reason for backing up post-policy changes. Thus, securing against data corruption emerges as a primary motivator for creating a backup after making significant changes to the policy.