[ 判断题 ] (2分)Packet switching is commonly used in traditional telephone networks ( )
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[ 判断题 ] (2分)The full text in English of RFC is request for comments. ( )
A. True
B. False
[ 判断题 ] (2分)There is no difference between a host and an end system. ( )
A. True
B. False
[ 单选题 ] (3分)By which of the following access technology, bandwidth is not shared among the users? ( )
A. WiFi
B. HFC
C. ADSL
D. None of the above
The original reason for the Internet to use packet switching is ( ).
A. Statistical multiplexing enables efficient sharing of expensive long-haul links.
B. Packet switching enables data to be routed faster than circuit switching.
C. It is less work for a router to process a packet than to process the data in a circuit.
D. Packet switching requires simpler hardware on the routers than circuit switching.