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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．reapers
B．relays
C．connects
D．modems
参考答案
更多 “ 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 ” 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 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 machine to another over a reliable connection．（ 3 ）is an approach preferred by cable TV providers．In this solution the fiber terminates at an optoelectrical converter and the final segment is a shared coaxial cable．（ 4 ）is a device used to connect two separate network that use different communication protocol．（ 5 ）is a digital-to-digital polar encoding method in which the signal level is always either positive or negative．第6题：文中（ 1 ）处正确的答案是（ ）。A．MDB．RSAC．DESD．MIB
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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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●Which is the second layer from the bottom in Open System Interconnection Reference Model? (71)．(71) A. ApplicationB.Data linkC.NetworkD.Session
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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．programB．UDPC．socketD．TCP
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● An internet is a combination of networks connected by （71） . When a datagram goes from a source to a （72） , it will probably pass many （73） until it reaches the router attached to the destination network. A router receives a （74） from a network and passes it to another network. A router is usually attached to several networks. When it receives a packet, to which network should it pass the packet? The decision is based on optimization: Which of the available （75） is the optimum pathway?（71）A. modemsB. routersC. switchesD. computers（72）A. userB. hostC. cityD. destination（73）A. destinationsB. routersC. packetsD. computers（74）A. destinationB. resourceC. packetD. source（75）A. pathwaysB. routersC. diagramsD. calls
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Every valid character in a computer that uses even(71)must always have an even number of 1 bits．(71)A．parityB．checkC．testD．compare
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● Every valid character in a computer that uses even （71） must always have an even number of1bits.（71）A. parity B. check C. test D. compare● The maximum number of data that can be expressed by 8 bits is （72） .（72）A. 64 B. 128 C. 255 D. 256● Integration （73） is the process of verifying that the components of a system work together as described in the program design and system design specifications.（73）A. trying B. checking C. testing D. coding● GIF files are limited to a maximum of 8 bits/pixel, it simply means that no more than 256 colors are allowed in （74） .（74）A. an image B. a file C. a window D. a page● Computer （75） is a complex consisting of two or more connected computing units, it is used for the purpose of data communication and resource sharing.（75）A. storage B. device C. network D. processor
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●Networks can be interconnected by different devices．In the physical layer，networks can be connected by (66) 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 (67) ，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 routers that can connect two netwoks．If two networks have (68) network layer，the router may be able to translate between the packet formats．In the transport layer we find transport gateway，which can interface between the two transport connections．Finally，in the application layer，application gateways translate message (69) ．As an example，gateways between Internet e-mail and X．400 e-mail must (70) the e-mail message and change various header fields．(66) A．reapersB．relaysC．connectsD．modems(67) A．framesB．bytesC．packagesD．cells(68) A．specialB．dependentC．similarD．dissimilar(69) A．syntaxB．semanticsC．languagesD．format(70) A．analyzeB．pairsC．deleteD．create
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Networks can be interconnected by different devices in the physical layer networks can be connected by (71) or hubs．which just move the bits from one network to an identical network．One layer up we find bridges and switches which operate at data link layer．They can accept (72) ，examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer，we have routers that can connect two networks，If two networks have (73) network layer，the router may be able to translate betweenthe packer formats．In the transport layer we find transport gateway，which can interface between two transport connections Finally，in the application layer，application gateways translate message (74) ．As an example，gateways between Internet e-mail and X，400 e-mail must (75) thee-mail message and change various header fields．(68)A．reapersB．relaysC．packagesD．modems
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An internet is a combination of networks connected by (71) .When a datagram goes from a source to a (72) ，it will probably pass many (73) until it reaches the router attached to the destination network．A router receives a (74) from a network and passes it to another network．A router is usually attached to several networks．When it receives a packet，to which network should it pass the packet? The decision is based on optimization： Which of the available (75) is the optimum pathway?A．modemsB．routersC．switchesD．computers
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Networks can be interconnected by different devices. In the physical layer, networks can be connected by(66)or hubs, which just move the bits from one network to an identical network. One layer up we find bridges and switches, which operate at data link layer. They can accept(67), 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 routers that can connect two networks. If two networks have(68)network layer, the router may be able to translate between the packet formats. In the transport layer we fmd transport gateway, which can interface between two transport connections. Finally, in the application layer, application gateways translate message(69). As an example, gateways between Internet e-mail and X.400 e-mail must(70)the e-mail message and change various header fields.A．repeatersB．relaysC．connectorsD．modems
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Which of the following commands would be used to move the working directory from C:\ to C:\Windows?()
A.CDB.RDC.MDD.SFC
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请教:2011年土地估价师考试《土地估价理论与方法》模拟试卷(5)第4大题第小题如何解答?
【题目描述】
根据材料，回答第 71～75 题：
第 71 题该宗地于2007年11月1日的土地单位面积价格为（ ）元/m2。
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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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● Networks can be interconnected by different devices. In the physical layer，networks can be connected by（1）or hubs，which just move the bits from one network to an identical network. One layer up we find bridges and switches，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 routers that can connect two networks. 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 can interface between 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.（1）A.reapersB.relaysC.connectorsD.modems（2）A.framesB.packetsC.packagesD.cells（3）A.specia lB.dependentC.similarD.dissimilar（4）A.syntaxB.semanticsC.languageD.format（5）A.analyzeB.parseC.deleteD.create
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根据下面的文字资料回答 6～7 题 SSL协议是运行在（ 1 ）层的协议，而IPSec协议是运行在（ 2 ）层的协议。第6题：文中（ 1 ）处正确的答案是（ ）。A．数据链路B．网络C．传输D．应用
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根据下面的文字资料回答 31～33 题 PPP使用（ 1 ）协议。相对于0S1模型，它提供（ 2 ）服务。对于PPP，远程服务器可以为本地客户提供一个（ 3 ）IP地址。第31题：文中（ 1 ）处正确的答案是（ ）。A．FCPB．IPC．802.3D．X.25
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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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Networks can be interconnected by different devices.In the physical layer, networks can be connected by（ ） or hubs, which just move the bits from one network to an identical network.A.repeaters
B.relays
C.connectors
D.modems
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Which of the following memory technologies doubles the amount of data obtained in a single memory access from 64-bits to 128-bits？（）A、SDRAMB、DDR RAMC、Interleaved memoryD、Online spare memory
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Which of the following commands would be used to move the working directory from C:/ to C:/Windows?（）A、CDB、RDC、MDD、SFC
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