程控交换机采用的交换技术是(23),交换的最小信息单位是(24),传送信息之前 (25)建立连接,其信息复用方式为(26)复用。IP路由器中采用的交换技术是(27), 交换的最小信息单位是(28),传送信息之前(29)建立连接,其信息复用方式为(30)。
可选项:A. ATM交换 B.分组交换 C.帧交换 D.电路交换
E.时隙 F.帧 G.比特 H.分组
I.信元 J带标记的分组 K.会话 L.比特
M.不需要 N.需要
O.异步时分复用 P.同步时分复用 Q.统计时分复用
第1题
句不计分。
4G的核心网架构发生了质的变化,其分组域实现(56)的分离,演进为EPS架构。EPS所有网元均基于(57)承载组成一个扁平网络。(58)是EPS的控制核心,主要负责用户及会话管理;(59)负责用户平面的数据传送、转发及切换路由;(60)负责为用户提供一个稳定的接入点。
EPS架构中,MME与HSS之间的接口是(61)接口。该接口采用基于全网IP方式的(62)协议,替代(63)来为众多的接入技术提供(64)、(65)和计费服务。
可选项:A.IP B. ATM C.控制与承载 D业务与控制
E. P-GW F. S-GW G. MME H. RNC l.HSS
J. Gx K. S6a L. Rx M. Diameter N.Radius
O.加密 P.授权 Q.认证
第3题
way.including automation,transportation, health-care and disaster management. ioT enables an object to listen, hear, see and communicate at the same time, loT thus transforms the devices from being smart by incorporating its pervasive and ubiquitous computing, communication technologies, embedded devices and many other applications to influence and revolutionize human life. Looking into the future, the Internet will no Jonger be considered a network of computers, Instead it will consist billions of smart objects along with embedded devices, As a result of this, the application of internet of Things (IoT) will exponentially rise both in scope and size, providing new opportunities as well as challenges, A number of countries have developed long term national strategies for the implementation of loT For instance, broadband access in Japan is facilitating the communication between people, things and things, and people and things.
97、IoT enables an object()。
A.to listen
B.to see
C.to communicate
D.smart
98、Looking into the future, the Internet ()。
A.will still be considered a network of computers
B.wil no longer be considered a network of computers
C.will be considered a network of things
D.will no longer be considered a network of things
99、The application of Internet of Things (IoT) will exponentially rise(),providing new opportunities as well as challenges.
A.in scope
B.in size
C.both in scope and size
D.in deep
100、This paragraph mainly explains()。
A.the Internet of Things
B.the Internet
C.the smart object
D.the communication between people and things
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