Scenario: A XenApp Administrator of a 100-server farm needs to apply Citrix and vendor hotfixes
on a monthly basis, and a server restart is always required. The administrator needs to automate
this process but does NOT have a third party tool available.
Which two tasks should the administrator complete to guarantee that updates will be applied
successfully? (Choose two.)

A.
Prohibit logons and notify users.

B.
Restart the server and install hotfixes.

C.
Apply application load evaluators and notify users.

D.
Log off all users from servers and schedule a .EXE setup file installation.