Which of the following are the MAIN reasons why a systems administrator would install security patches in a staging environment before the patches are applied to the production server? (Select two.)

Installing patches in a staging environment first allows administrators to identify whether a patch causes service disruptions, compatibility issues, or crashes before those problems affect the live production server, thereby preventing unplanned downtime and preserving availability.

Verifying that the correct patch is being installed is a change management and patch identification step that occurs before deployment and does not specifically require a staging environment to accomplish.

Generating a new baseline hash after patching is a system integrity and change management task performed post-deployment on any environment, not a primary justification for using a staging environment.

A staging environment allows end users or QA teams to test that existing application functionality still works correctly after patching, catching regressions or broken workflows before they impact the production user base.

Training users on new functionality is an organizational change management concern unrelated to the technical purpose of a staging environment, which focuses on stability and regression testing rather than user education.