Before adding a peripheral device, which of the following actions should you perform? Choose all correct options.

A.
Inform users of the pending update.

B.
Check whether an update has been released for the firmware of the peripheral device that includes features required by your server system.

C.
Obtain the update tool associated with the firmware update so that you can apply the update.

D.
All of the above.

Explanation:
Before installing any peripheral device you should visit the website of the manufacturer to determine whether there are any newly released firmware updates for the peripheral device that includes features required by your server system. You also need to obtain the update tool associated with the firmware update so that you can apply the update. Before proceeding with the installation of the peripheral device, inform your users thereof.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 409-410.