中级软件设^计师相同项单选集考试卷模拟考试题

1、姓名：_ 班级：_ 学号：_-密-封 -线- 标签:标题考试时间：120分钟 考试总分：100分题号一二三四五总分分数遵守考场纪律，维护知识尊严，杜绝违纪行为，确保考试结果公正。1、midi enables people to use(11)computers and electronic musical instruments. there are actually three components to midi, the communications”(12).”, the hardware interface and a distribution(13)called “standard

2、 midi files”. in the context of the www, the most interesting component is the(14)format. in principle, midi files contain sequences of midi protocol messages. however, when midi protocol(15)are stored in midi files, the events are also time-stamped for playback in the proper sequence. music deliver

3、ed by midi files is the most common use of midi today.（11）是（ ）a.personalb.electronicc.multimediad.network2、midi enables people to use(11)computers and electronic musical instruments. there are actually three components to midi, the communications”(12).”, the hardware interface and a distribution(13)

4、called “standard midi files”. in the context of the www, the most interesting component is the(14)format. in principle, midi files contain sequences of midi protocol messages. however, when midi protocol(15)are stored in midi files, the events are also time-stamped for playback in the proper sequenc

5、e. music delivered by midi files is the most common use of midi today.（12）是（ ）a.deviceb.protocolc.networkd.controller3、midi enables people to use(11)computers and electronic musical instruments. there are actually three components to midi, the communications”(12).”, the hardware interface and a dist

6、ribution(13)called “standard midi files”. in the context of the www, the most interesting component is the(14)format. in principle, midi files contain sequences of midi protocol messages. however, when midi protocol(15)are stored in midi files, the events are also time-stamped for playback in the pr

7、oper sequence. music delivered by midi files is the most common use of midi today.（13）是（ ）a.formatb.textc.waved.center4、midi enables people to use(11)computers and electronic musical instruments. there are actually three components to midi, the communications”(12).”, the hardware interface and a dis

8、tribution(13)called “standard midi files”. in the context of the www, the most interesting component is the(14)format. in principle, midi files contain sequences of midi protocol messages. however, when midi protocol(15)are stored in midi files, the events are also time-stamped for playback in the p

9、roper sequence. music delivered by midi files is the most common use of midi today.（14）是（ ）a.videob.faxmailc.graphicd.audio5、midi enables people to use(11)computers and electronic musical instruments. there are actually three components to midi, the communications”(12).”, the hardware interface and

10、a distribution(13)called “standard midi files”. in the context of the www, the most interesting component is the(14)format. in principle, midi files contain sequences of midi protocol messages. however, when midi protocol(15)are stored in midi files, the events are also time-stamped for playback in

11、the proper sequence. music delivered by midi files is the most common use of midi today.（15）是（ ）a.messagesb.packetsc.framed.information6、spread spectrum simply means that data is sent in small pieces over a number of the(46)frequencies available for use at any time in the specified range. devices us

12、ing(47)spread spectrum (dsss) communicate by(48)each byte of data into several parts and sending them concurrently on different(49). dsss uses a lot of the available(50), about 22 megahertz (mhz) .（46）是（ ）a.continuousb.highc.lowd.discrete7、spread spectrum simply means that data is sent in small piec

13、es over a number of the(46)frequencies available for use at any time in the specified range. devices using(47)spread spectrum (dsss) communicate by(48)each byte of data into several parts and sending them concurrently on different(49). dsss uses a lot of the available(50), about 22 megahertz (mhz) .

14、（47）是（ ）a.direct-sequenceb.discrete-sequencec.duplicate-sequenced.dedicate-sequence8、spread spectrum simply means that data is sent in small pieces over a number of the(46)frequencies available for use at any time in the specified range. devices using(47)spread spectrum (dsss) communicate by(48)each

15、 byte of data into several parts and sending them concurrently on different(49). dsss uses a lot of the available(50), about 22 megahertz (mhz) .（48）是（ ）a.splittingb.combiningc.packingd.compacting9、spread spectrum simply means that data is sent in small pieces over a number of the(46)frequencies ava

16、ilable for use at any time in the specified range. devices using(47)spread spectrum (dsss) communicate by(48)each byte of data into several parts and sending them concurrently on different(49). dsss uses a lot of the available(50), about 22 megahertz (mhz) .（49）是（ ）a.bitsb.frequenciesc.packetsd.mess

17、ages10、spread spectrum simply means that data is sent in small pieces over a number of the(46)frequencies available for use at any time in the specified range. devices using(47)spread spectrum (dsss) communicate by(48)each byte of data into several parts and sending them concurrently on different(49

18、). dsss uses a lot of the available(50), about 22 megahertz (mhz) .（50）是（ ）a.rateb.velocityc.bandwidthd.period11、(41)is a protocol that a host uses to inform a router when it joins or leaves an internet multicast group.(42)is an error detection code that most data communication networks use.(43)is a

19、n interior gateway protocol that uses a distance vector algorithm to propagate routing information.(44)is a transfer mode in which all types of information are organized into fixed form cells on an asynchronous or non-periodic basis over a range of media.(45)is an identifier of a web page.（41）是（ ）a.

20、icmpb.smtpc.igmpd.arp12、(41)is a protocol that a host uses to inform a router when it joins or leaves an internet multicast group.(42)is an error detection code that most data communication networks use.(43)is an interior gateway protocol that uses a distance vector algorithm to propagate routing in

21、formation.(44)is a transfer mode in which all types of information are organized into fixed form cells on an asynchronous or non-periodic basis over a range of media.(45)is an identifier of a web page.（42）是（ ）a.4b/5bb.crcc.manchester coded.huffman code13、(41)is a protocol that a host uses to inform

22、a router when it joins or leaves an internet multicast group.(42)is an error detection code that most data communication networks use.(43)is an interior gateway protocol that uses a distance vector algorithm to propagate routing information.(44)is a transfer mode in which all types of information ar

23、e organized into fixed form cells on an asynchronous or non-periodic basis over a range of media.(45)is an identifier of a web page.（43）是（ ）a.ospfb.ripc.rarpd.bgp14、(41)is a protocol that a host uses to inform a router when it joins or leaves an internet multicast group.(42)is an error detection cod

24、e that most data communication networks use.(43)is an interior gateway protocol that uses a distance vector algorithm to propagate routing information.(44)is a transfer mode in which all types of information are organized into fixed form cells on an asynchronous or non-periodic basis over a range of

25、 media.(45)is an identifier of a web page.（44）是（ ）a.isdnb.x.25c.frame relayd.atm15、(41)is a protocol that a host uses to inform a router when it joins or leaves an internet multicast group.(42)is an error detection code that most data communication networks use.(43)is an interior gateway protocol th

26、at uses a distance vector algorithm to propagate routing information.(44)is a transfer mode in which all types of information are organized into fixed form cells on an asynchronous or non-periodic basis over a range of media.(45)is an identifier of a web page.（45）是（ ）a.httpb.urlc.htmld.tag16、network

27、s can be interconnected by different devices. in the physical layer networks can be connected by(31)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(32), examine the mac address and

28、 forward the frames to a different network while doing minor protocol translation in the process. in network layer, we have routers that can connect two networks. if two networks have(33)network layer, the muter may be able to translate between the packer formats. in the transport layer we find tran

29、sport gateway, which can interface between two transport connections. finally, in the application layer, application gateways translate message(34). as an example, gateways between internet e-mail and x.400 e-mail must(35)the e-mail message and change various header fields.（31）是（ ）a.reapersb.relaysc

30、.packagesd.modems17、networks can be interconnected by different devices. in the physical layer networks can be connected by(31)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(32),

31、examine the mac address and forward the frames to a different network while doing minor protocol translation in the process. in network layer, we have routers that can connect two networks. if two networks have(33)network layer, the muter may be able to translate between the packer formats. in the t

32、ransport layer we find transport gateway, which can interface between two transport connections. finally, in the application layer, application gateways translate message(34). as an example, gateways between internet e-mail and x.400 e-mail must(35)the e-mail message and change various header fields

33、.（32）是（ ）a.framesb.packetsc.packagesd.cells18、networks can be interconnected by different devices. in the physical layer networks can be connected by(31)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 la

34、yer. they can accept(32), examine the mac address and forward the frames to a different network while doing minor protocol translation in the process. in network layer, we have routers that can connect two networks. if two networks have(33)network layer, the muter may be able to translate between th

35、e 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(34). as an example, gateways between internet e-mail and x.400 e-mail must(35)the e-mail message and ch

36、ange various header fields.（33）是（ ）a.specialb.dependentc.similard.dissimilar19、networks can be interconnected by different devices. in the physical layer networks can be connected by(31)or hubs, which just move the bits from one network to an identical network. one layer up we find bridges and switc

37、hes which operate at data link layer. they can accept(32), examine the mac address and forward the frames to a different network while doing minor protocol translation in the process. in network layer, we have routers that can connect two networks. if two networks have(33)network layer, the muter ma

38、y be able to translate between the 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(34). as an example, gateways between internet e-mail and x.400 e-mail

39、must(35)the e-mail message and change various header fields.（34）是（ ）a.syntaxb.semanticsc.languaged.format20、networks can be interconnected by different devices. in the physical layer networks can be connected by(31)or hubs, which just move the bits from one network to an identical network. one layer

40、 up we find bridges and switches which operate at data link layer. they can accept(32), examine the mac address and forward the frames to a different network while doing minor protocol translation in the process. in network layer, we have routers that can connect two networks. if two networks have(3

41、3)network layer, the muter may be able to translate between the 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(34). as an example, gateways between inte

42、rnet e-mail and x.400 e-mail must(35)the e-mail message and change various header fields.（35）是（ ）a.analyzeb.parsec.deleted.create21、(51)is a six bytes osi layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.(52)is a professi

43、onal organization of individuals in multiple professions which focuses on effort on lower-layer protocols.(53)functions with two layers of protocols. it can connect networks of different speeds and can be adapted to an environment as it expands.(54)is the popular lan developed under the direction of

44、 the ieee802.5.(55)is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ansi.（51）是（ ）a.the mac addressb.the ip addressc.the subnet addressd.the virtual address22、(51)is a six bytes osi layer 2 add

45、ress which is burned into every networking device that provides its unique identity for point to point communication.(52)is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.(53)functions with two layers of protocols. it can connect n

46、etworks of different speeds and can be adapted to an environment as it expands.(54)is the popular lan developed under the direction of the ieee802.5.(55)is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the dir

47、ection of ansi.（52）是（ ）a.isob.ansic.ccitd.ieee23、(51)is a six bytes osi layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.(52)is a professional organization of individuals in multiple professions which focuses on effort on

48、 lower-layer protocols.(53)functions with two layers of protocols. it can connect networks of different speeds and can be adapted to an environment as it expands.(54)is the popular lan developed under the direction of the ieee802.5.(55)is the popular backbone technology for transmitting information

49、at high speed with a high level of fault tolerance which is developed under the direction of ansi.（53）是（ ）a.the hubb.the bridgec.the routerd.the proxy24、(51)is a six bytes osi layer 2 address which is burned into every networking device that provides its unique identity for point to point communicat

50、ion.(52)is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.(53)functions with two layers of protocols. it can connect networks of different speeds and can be adapted to an environment as it expands.(54)is the popular lan developed u

51、nder the direction of the ieee802.5.(55)is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ansi.（54）是（ ）a.ethernetb.tokenbusc.tokenringd.dqdb25、(51)is a six bytes osi layer 2 address which is bu

52、rned into every networking device that provides its unique identity for point to point communication.(52)is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.(53)functions with two layers of protocols. it can connect networks of diffe

53、rent speeds and can be adapted to an environment as it expands.(54)is the popular lan developed under the direction of the ieee802.5.(55)is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ansi.（

54、55）是（ ）a.x.25b.atmc.fddid.smds26、originally introduced by netscape communications,(1)are a general mechanism which htfp server side applications, such as cgi(2), can use to both store and retrieve information on the http(3)side of the connection. basically, cookies can be used to compensate for the(

55、4)nature of http. the addition of a simple, persistent, client-side state significantly extends the capabilities of www-based(5).（1）是（ ）a.browsersb.cookiesc.connectionsd.scripts27、originally introduced by netscape communications,(1)are a general mechanism which htfp server side applications, such as

56、 cgi(2), can use to both store and retrieve information on the http(3)side of the connection. basically, cookies can be used to compensate for the(4)nature of http. the addition of a simple, persistent, client-side state significantly extends the capabilities of www-based(5).（2）是（ ）a.graphicsb.proce

57、ssesc.scriptsd.texts28、originally introduced by netscape communications,(1)are a general mechanism which htfp server side applications, such as cgi(2), can use to both store and retrieve information on the http(3)side of the connection. basically, cookies can be used to compensate for the(4)nature of http. the addition of a simple, per