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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 extend over a network connect two or more applications running on separate computer sat tached to the network．Asocket（ 2 ）twoaddresses：（ 3 ）．Sockets providea （ 4 ）communication channel between one or more systems.There are stream and datagram sockets separately using TCP and（ 5 ）．
第6题：文中（ 1 ）处正确的答案是（ ）。
A．program
B．UDP
C．socket
D．TCP
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更多 “ 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 extend over a network connect two or more applications running on separate computer sat tached to the network．Asocket（ 2 ）twoaddresses：（ 3 ）．Sockets providea （ 4 ）communication channel between one or more systems.There are stream and datagram sockets separately using TCP and（ 5 ）．第6题：文中（ 1 ）处正确的答案是（ ）。A．programB．UDPC．socketD．TCP ” 相关考题
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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（ 2 ）with the curvature of the earth，they can be （ 3 ）onlyover short distance．Thus，microwave is a good（ 4 ）for sending data between bulldingsin a city or on a large college campus．For longer distances，the waves must berelayed by means of“dishes”or（ 5 ）．These can be installed on towers，highbuildings，and mountain tops．第71题：文中（ 1 ）处正确的答案是（ ）。A．highB．10wC．1ongD．short
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根据下面的文字资料回答 71～75 题 The Simple Network Management Protocol(SNMP)is an （ 1 ）protocol that facilitates the exchange of management information between （ 2 ）．It is part of the Transmission Control ProtocoL/Internet Protocol(TCP/IP)protocol suite. SNMP enables network（ 3 ）to manage network performance，find and sole network problems，and plan for（ 4 ）．An SNMP managed network consists of three key components：managed devices，（ 5 ），and networkmanagement systems．第6题：文中（ 1 ）处正确的答案是（ ）。A．Physical LayerB．Link LayerC．Network LayerD．Transport Layer
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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 at any time in the specified range．Devices using（ 2 ） spread spectrum(DSSS)communicate by splitting each（ 3 ）of data into several parts and sending them concurrently on different（ 4 ），DSSS uses a lot of the available（ 5 ），about 22 megahertz(MHz)．第71题：文中（ 1 ）处正确的答案是（ ）。A．smallB．highC．lowD．long
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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 intradomain routing protocol．This routing，as compared to distance-vector routing，requires（ 3 ）processing power．The Dijkstra algorithm is used to calculate（ 4 ）OSPF routing table updates only take place when necessary，（ 5 ）at regular intervals．第6题：文中（ 1 ）处正确的答案是（ ）。A．distance-vectorB．link-stateC．flow-basedD．selective flooding
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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．During the requirements definition phase，the requirements deftnifion team uses an iterative process to expand a broad statement of the system requirements into a complete and detailed specificationof each function that the software must perform. and each（ 2 ）that it must meet．The starting point is usually a set of high-level requirements from the（ 3 ）that describe the project or problem．In either case，the requirements definition team formulates an overall concept for the system and thedefines（ 4 ）showing how the system will be oPerated，publishes the system and operation concept documents，and conducts a system concept review(SCR).Following the SCR，the team derives（ 5 ）requirements for the system from the highlevel requirements and the systern operations concept．Using structured or object-oriented analysis，the team specifies the software functions and algorithms needed to satisfy each detailedrequirements.第71题：文中（ 1 ）处正确的答案是（ ）。A．functionB．definitionC．specificationD．statement
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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 the frames to a different network while doing minor protocol translation in the process. In the network layer,we have touters that can connect two netwoks. If two networks have（ 3 ）network layer,the router may be able to translate between the packet formats. In the transport layer we find transport gateway, which cart interface between the two transport connections. Finally, in the application layer, application gateways translate message（ 4 ）. As an example,gateways between Internet e-mail and X.400 e-mail must （ 5 ）the e-mail message and change various header fields.第6题：文中（ 1 ）处正确的答案是（ ）。A．reapersB．relaysC．connectsD．modems
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根据下面的材料回答71～75题。
1997年对某地区人员的职业、性别及工资收入进行调查得到如下资料：
该地区男性就业人员在全部就职人员中所占比例约为（ ）。
A.38％
B.52％
C.58％
D.62％
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