When a new network drop was installed, the cable was run across several fluorescent lights. The
users of the new network drop experience intermittent connectivity. Which of the following
environmental controls was MOST likely overlooked during installation?

A.
Humidity sensors

B.
EMI shielding

C.
Channel interference

D.
Cable kinking

Explanation:

Shielding refers to the process of preventing electronic emissions from your computer systems
from being used to gather intelligence and preventing outside electronic emissions from disrupting
your information-processing abilities. In this case you are experiencing intermittent connectivity
since Electro Magnetic Interference (EMI) was not taken into account when running the cables
over fluorescent lighting.