Joe, the system administrator, is performing an overnight system refresh of hundreds of user
computers. The refresh has a strict timeframe and must have zero downtime during business
hours. Which of the following should Joe take into consideration?

A.
A disk-based image of every computer as they are being replaced.

B.
A plan that skips every other replaced computer to limit the area of affected users.

C.
An offsite contingency server farm that can act as a warm site should any issues appear.

D.
A back-out strategy planned out anticipating any unforeseen problems that may arise.