The Connections Between Switches Can Use UTP Cable,but If They

Multiple Choice

The connections between switches can use UTP cable,but if they carry a lot of traffic or are far apart,________.

A) the UTP cable may be twisted to reduce cross-wire signal interferences
B) the UTP cable may be replaced by optical fiber cables
C) an additional NIC card should be placed in the network
D) the UTP cables should given one more layer of cladding