通信英语知识工程师认证考试复习题.pdf

通信英语I 单项选择1抽样频率a.sampling rate b.repetition rate c.sampling frequency 答案：c 2数字通信a.digital communication b.digital transmission c.transmission path 答案：a 3帧格式a.synchronization word b.frame format c.reverse operation 答案：b 4噪声功率a.noisy environment b.signal levels c.noise power 答案：c 5含噪声的环境a.signal levels b.noisy environment c.noise power 答案：b 6模拟信号a.speech channel b.analog signal c.amplitude value 答案：b 7脉冲流 a.stream of pulses b.receiving terminal c.terrestrial system 答案：a 8传输路由a.transmission path b.transmission quality c.binary transmission 答案：a 9互联网work resource b.Internet c.interconnected systems 答案：b 10命令a.copy b.host mand 答案：c 11拷贝a.address b.mouse c.copy 答案：c 12搜索工具a.user interface b.searching tools c.electronic mail 答案：b 13存取 a.access b.protocol c.copy 名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页，共 20 页 -答案：a 14网络资源a.textual messages b.remote terminals work resources 答案：c 15文本信息a.information services b.hypertext protocol c.textual messages 答案：c 16频谱a.bandwidth b.spread spectrum c.frequency band 答案：b 17移动a.mobile subscriber b.mobile unit c.service performance 答案：b 18频带a.frequency spectrum b.frequency band c.spread spectrum 答案：b 19蜂窝交换机a.cellular switch b.cellular site c.mobile unit 答案：a 20单边带a.single-sideband b.bandwidth c.service area 答案：a 21服务区a.service area b.service performance c.service capability 答案：a 22移动用户a.mobile unit b.mobile subscriber c.mobile transceiver 答案：b 23微处理器a.subsystems b.utilization c.microprocessor 答案：c 24无线机架a.radio cabinet b.antenna c.mobile unit 答案：a 25电路交换a.packet switching b.circuit switching c.message switching 答案：b 26分组交换a.packet switching b.circuit switching c.message switching 答案：a 27报文交换a.packet switching b.circuit switching c.message switching 答案：c 名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页，共 20 页 -28专用电路a.dedicated circuit b.error control c.return signal 答案：a 29突发性 a.bursty b.random c.header 答案：a 30传输时延a.destination address b.transmission delay c.return signal 答案：b 31中间交换设备a.given maximum b.intermediate switching equipment c.store-and-forward manner 答案：b 32子网a.header b.subnet c.busty 答案：b 33.公众电信网a.public telecommunication network b.intermediate switching node c.circuit-switched network 答案：a 34.半双工的a.full-duplex b.half-duplex c.external call 答案：b 35.端局a.toll center b.end office c.tandem switch 答案：b 36.外部呼叫a.external call b.data traffic c.toll center 答案：a 37.链路a.trunk b.link c.route 答案：b 38.交换节点a.intermediate switching node b.voice-frequency circuit c.switching node 答案：c 39.音频电路a.telephone subscriber b.voice-frequency circuit c.two wire connection 答案：b 40.拓扑a.internodes b.topology c.route 答案：b 名师资料总结-精品资料欢迎下载-名师精心整理-第 3 页，共 20 页 -41.二线连接a.data traffic b.end office c.two wire connection 答案：c 42.数据流量a.data traffic b.tandem switch c.toll center 答案：a 43.全球通信a.interface equipment b.global communication munication carriers 答案：b 44.脉码调制a.pulse code modulation b.voice encoding c.open network 答案：a 45.接口设备a.switching equipment b.transmission medium c.interface equipment 答案：c 46.综合业务数字网a)end-to-end digital connectivity b.international organization for standardization c.integrated services digital network 答案：c 47.通信载体munication carriers b.transmission medium c.interface equipment 答案：a 48.系统结构a.infrastructure c.flexibility d.basic access 答案：a 49.蜂窝式移动a.cellular switch b.cellular mobile telephone c.cellular site 答案：b 50.数据传输a.data transmission b.transmission error c.error flag 答案：a 51.传号电平a.space level b.logical level c.mark level 答案：c 52.接收机的定时a.intersymbol space b.serial interface c.receiver timing 答案：c 53.明显的缺点a.transmission error b.obvious disadvantage 名师资料总结-精品资料欢迎下载-名师精心整理-第 4 页，共 20 页 -c.error flag 答案：b 54.起始位a.start bit b.stop bit c.parity bit 答案：a 55.空号电平a.mark level b.space level c.the idle state 答案：b 56.控制比特a.binary data b.local clock c.control bit 答案：c 57.串行接口a.data stream b.CRT terminal c.serial interface 答案：c 58.发送器和接收器a.transmitter and receiver b.receiver timing c.duration of T seconds 答案：a 59.二进制数据a.binary data b.data stream c.data transmission 答案：a 60.高速电子开关a.the voice channel b.the repetition rate c.a high-speed switch 答案：c II.根据所给英文选择合适的答案1 digital communication a.全球通信 b.公共通信载体 c.数字通信答案：c 2 voice encoding techniques a.语音编码技术 b.脉冲 c.脉冲编码调制答案：a 3 basic access signaling rate a.大量的接口设备 b.基本接入信令速率 c.统一的接入答案：b 4 the International Organization for Standardization a.综合业务数字网 b.ISDN的标准和系统结构 c.国际标准化组织答案：c 5 end-to-end digital connectivity a.基本接入信令速率 b.端对端的数字连接 c.语音编码技术答案：b 6 progressive application of digital technology 名师资料总结-精品资料欢迎下载-名师精心整理-第 5 页，共 20 页 -a.由于传输媒体导致的质量下降b.4KHz 话路中所固有的带宽限制c.数字技术的逐步应用答案：c 7 enhanced quality a.高质量 b.带宽的限制 c.统一的接入答案：a 8 the branches between nodes a.节点间的支路 b.中间交换节点 c.全双工的连接答案：a 9 tree topology a.双绞线 b.结构部件 c.树状拓扑答案：c 10backbone hierarchical network a.国家网络 b.被分离开的子网 c.主干体系网络答案：c 11the subscriber that transmit digital signal a.发送数字信号的用户 b.一小部分用户 c.相邻的端局答案：a 12multiple voice-frequency circuits a.高效中继线 b.多音频电路 c.同步时分复用答案：b 13the function of concentrating traffic a.集中话务量的功能 b.路由选择的基本次序c.发送数字信号的用户答案：a 14full duplex a.全双工的连接 b.全连通性 c.全双工的答案：c 15transmission facilities a.传输设备 b.交换区 。