Which of the Following Is True Regarding Switched Backbones

Multiple Choice

Which of the following is true regarding switched backbones?

A) They place all network devices for one part of the building physically in the same room, often in a rack of equipment
B) They have an advantage of requiring less cable
C) They make it more difficult to move computers from one LAN to another
D) Network capacity is always tied to the physical location of the computers
E) They are harder to maintain and upgrade than a BN that is not rack-based