电信网（Telecommunication Network）是多个用户电信系统互联的通信体系，是由终端设备、传输设备、（）等基本要素组成的综合系统。
All of these applications will enhance the(130)of life and spur economic growth. Over half of the U.S. work force is now in jobs that are information(131). The telecommunication and information sector of the U.S. economy now(132)for 12 percent of the Gross Domestic Product, growing much faster than any other sector of the economy. Last year the(133)in this sector exceeded 700 billion dollars. The U.S. exported over 48 billion dollars of telecommunication equipment(134).A．quantityB．qualityC．massD．amount
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Network managers have long awaited practical voice-over-IP(VOIP)solutions. VOIP promises ease network management and decreases(66)by converging a company's telephony and data infrastructures into one network. And a VOIP solution implemented at a company's head-quarters with far-reaching branch offices can(67)tremendous amounts of money in long distance phone bills, provided that solution delivers POTS-like voice(68)over the Internet.VOIP gateways are designed to convert voice from the(69)domain to the circuit switched domain. VOIP solutions use a digital signal processor(DSP)to process the voice data, preparing the voice sample for transmission by compressing voice and removing jitter. The VOIP equipment must comply with the(70)H.323 standard defined by the International Telecommunication Union, or ITU.A．timeB．cashC．costsD．space
Recently,telecommunication carriers has been building ( ) core networks in order to effectively support various kinds of fixed and mobile broadband services.A. NGN B.social network C. mobile network D. AII -IP
【Recently， telecommunication carriers has been building All-IP core networks in order to effectively support various kinds of fixed and mobile broadband services，such as up-and down-loading You tube and SNS（Social Networking Services）with rich video file，as well as broadband mobile Internet services. Such All-IP network is called NGN（Next Generation Network），which guarantees secure authentication and QoS such as the bandwidth and the delay. From the service point of view，convergence of fixed and mobile communications，known as FMC（Fixed Mobile Convergence）is becoming a key increasing new services and expanding the market.】 Form the paragraph above，we can see that（）can be defined as a network that can effectively support various kinds of fixed and mobile broadband services，with guaranteed QoS in terms of（）and etc. And the key to develop new services and gain larger market share should be（）A．All-IP access network B．broad band network C．NGN D．social network A．data rate B．error rate C．availability D．band width， delay A．mobile communications B．Internet C．All-IP core network D．Fixed Mobile Convergence
How many morphemes does the word "telecommunication" containA.1B.2C.3D.4
通信网按服务区域范围分为哪几类？A、本地电信网B、长途电信网C、移动通信网D、国际电信网
不是在《关于电信网络等级保护工作有关问题的通知》（信电函[2006]35号）中，指出的电信网络的两个特点的是（）。A、电信网络的基础网络和重要信息系统是逻辑分离的，可以分开实施技术保护B、电信网络在实施技术保护方式时，其中的重要信息系统是实现电信网络安全可靠运行的重中之重C、电信网络由各种设备、线路和相应的支撑、管理子系统组成，是一个不可分割的整体D、电信网络具有全程全网的特点，落实保护措施必须要对整个网络统筹监顾
