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计算机
With circuit switching,a (71)________________path is established between two stations forcommunication.Switching and transmissi
With circuit switching,a (71)________________path is established between two stations forcommunication.Switching and transmissi
admin
2020-04-30
41
问题
With circuit switching,a (71)________________path is established between two stations forcommunication.Switching and transmission resources within the network are (72)________________ for theexclusive use of the circuit for the duration of the connection.The connection is (73)________________ :Once it is established,it appears to attached devices as if there were a direct connection.Packet switching was designed to provide a more efficient facility than circuit switching for (74)________________data traffic.Each packet contains some portion of the user data plus control information needed for proper functioning of the network.A key distinguishing element of packet-switching networks is whether the internal operation is datagram or virtual circuit.With internal virtual circuits,a route is defined between two endpoints and all packets for that virtual circuit follow the (75)________________ route.With internal datagrams,each packet is treated independently,and packets intended for the same destination may follow different routes.
选项
A、discarded
B、abandoned
C、reserved
D、broken
答案
C
解析
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本试题收录于:
网络工程师上午基础知识考试题库软考中级分类
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网络工程师上午基础知识考试
软考中级
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