Which of the Following Is Not True About Switched Backbones

Multiple Choice

Which of the following is not true about switched backbones?

A) network latency delay) is decreased in comparison to traditional bridged or routed) backbone networks
B) each connection into the switch is a separate point-to-point circuit which supports simultaneous access by the LANs connected to the switch
C) there are many more networking devices in a switched backbone network compared to the number of LANs attaching to it
D) use a star topology
E) the backbone essentially exists in the switch; there is no backbone cable