Which of the following cannot be used to clean the surface of the keyboard? Choose all that apply.

A.
A mini vacuum cleaner.

B.
An antistatic screen cleaner.

C.
An approved cleaning solution.

D.
All of the above

Explanation:
A mini vacuum cleaner is used to clean between and under the keys. An antistatic screen cleaner should be avoided because it can deposit a conductive film over the cleaned surface. Unapproved cleaning solutions can result in the fading and removal of the key buttons’ lettering Incorrect Answers: C: You should use an approved cleaning solution to clean the surface of the keyboard.
D: Unapproved cleaning solutions can result in the fading and removal of the key buttons’ lettering.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 453-454.