第11题:文中( 1 )处正确的答案是( )。
A.字节流套接字
B.数据报套接字
C.原始数据报套接字
D.A、B和C
[单选题]根据下面的文字资料回答 42~44 题 光纤通信中使用的复用方式是( 1 )。E1载波把32个信道按( 2 )方式复用在一条2.048Mbit/s的高速信道上,每条话音信道的数据速率是( 3 )。第42题:文中( 1 )处正确的答案是( )。A.时分多路B.空分多路C.波分多路D.频分多路
[单选题]根据下面的文字资料回答 71~75 题 connected by( 1 )or Hubs,which just move the bits from one network to an identical network. One layer up we find bridgas and swiehes,which operate at data link layer. They can accept ( 2 ) , examine the MAC address, and forward th
[单选题]根据下面的文字资料回答 72~76 题 ( 1 )is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string.( 2 )is a protocol that most USENET machines nOW use it to allow news articles to propagate from one machi
[单选题]根据下面的文字资料回答 61~62 题 RMON-1(1991)和RMON-2(1995)是( 1 )标准。RMON MIB分为10组,这10组中有( 2 )组反映以太网的统计信息。第61题:文中( 1 )处正确的答案是( )。A.远程访问B.远程网络监控C.远程登录D.远程控制
[单选题]根据下面的文字资料回答 71~75 题 In the following essay,each blank has four choices.Choose the most suitable one from the four choices and write down in the answer sheet.A( 1 )is basically an end point of a communication link between two applications.Sockets that
[单选题]根据下面的文字资料回答 71~75 题 The purpose of the requirements definition phase is to produce a clear,complete,consistent,and testable( 1 )of the technical requirements for the software produet.D.uring the requirements definition phase,the requirements deftnifi
[单选题]根据下面的文字资料回答 71~75 题 In the following essay.each blank has four choices.Choose the best answer and write down on the answer sheet.Spread spectrum simply means that data is sent in( 1 )pieces over a number of the discrete frequencies available for use
[单选题]根据下面的文字资料回答 71~75 题In the following essay,each blank has fourchoices.Choose the best answer and write down on thean,swer sheet.Microwave communication uses( 1 )frequency radio waves that travel instraighdine sthroughthe air.Because the waves cannot(
[单选题]根据下面的文字资料回答 11~13 题软件能力成熟度模型CMM(Capability Maturity Model)描述和分析了软件过程能力的发展与改进的程度,确立了一个软件过程成熟程度的分级标准。在初始级,软件过程定义几乎处于无章可循的状态,软件产品的成功往往依赖于个人的努力和机遇。在( 1 ),已建立了基本的项目管理过程,可对成本、进度和功能特性进行跟踪。在( 2 ),用于软件管理与工程两方面的软件过程均已文档化、标准化,并形成了整个软件组织的标准软件过程。在已管理级,对软件过程和产品质量有
[单选题]根据下面的文字资料回答 71~75 题 n the following essay,each blank has four choices.Choose the most suitable one from the four choices and write down in the answer sheet.Open Shortest Path First(OSPF)is a( 1 )routing algorithm that( 2 )work done on the OSI IS-IS i