2018上半年网络工程师英语真题

With circuit switching a __(1)__path is established between two stations for communication . Switching and transmission resources within the network are __(2)__for the exclusive use of  the circuit for the duration of the connection . The connection is__(3)__：Once it is established ，It  appears to attached devises as if there were a direct connection. Packet switching was  designed to  provide a more efficient faciltiy than circult switching for (   ) data tratffic.  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__(4)__ route, With internal datagrams,each packet is treated independently,and packets intended for the same destination may follow different routes.

（1）A．unique

B. dedicated

C. nondedicated

D.independent

（2）A．discarded

B. abandoned

C. reserved

D. broken

（3）A． indistinct

B.direct

C.indirect

D. transparent

（4）A．casual

B.bursty

C.limited

D.abundant

（5）A．same

B. different

C. single

D.multiple

点击注册会员>>>即可获取网络工程师免费在线真题、观看免费公开课！

软考报名：2018下半年软考各地区报名时间汇总

真题自测：软考各科目历年真题及答案解析

更多资讯可关注希赛网软考频道，问题咨询请拨打客服电话400-111-9811。