Which of the following should occur when implementing an IT infrastructure change that takes risks...

When implementing an IT infrastructure change that takes risks into consideration, the project manager should develop a rollback plan. A rollback plan is a contingency plan that outlines the steps that need to be taken in case the change does not work as expected. It includes a plan to roll back the changes and restore the system to its previous state. References: CompTIA Project+ Study Guide Section 3.3.

The project manager should develop a rollback plan when implementing an IT infrastructure change that takes risks into consideration. A rollback plan is a contingency plan that describes how to revert back to the previous state of the system in case of a failure or disruption during the change implementation. A rollback plan can help to minimize the impact of the change on the system performance and availability and ensure business continuity and data integrity.