初级网络管理员计算机专业英语考试卷模拟考 试题

1、姓名：_ 班级：_ 学号：_-密-封 -线- 初级网络管理员计算机专业英语考试卷模拟考 试题考试时间：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、a transport layer protocol has several responsibilities, one is to create a process-to-process (program-to-program) communication; tcp uses port (1) to accomplish this. another responsibility

2、 of a transport layer protocol is to create a (2) and error-control mechanism at the transport level. tcp uses a sliding (3) protocol to achieve flow control. it uses the acknowledgment packet, time-out, and retransmission to achieve (4) control. the transport layer is also responsible for providing

3、 a connection mechanism for the application program. the application program sends (5) of data to the transport layer. it is the responsibility of the transport layer at the sending station to make a connection with the receiver.空白（1）处应选择（ ）a.numbersb.connectionc.diagramsd.resources2、a transport lay

4、er protocol has several responsibilities, one is to create a process-to-process (program-to-program) communication; tcp uses port (1) to accomplish this. another responsibility of a transport layer protocol is to create a (2) and error-control mechanism at the transport level. tcp uses a sliding (3)

5、 protocol to achieve flow control. it uses the acknowledgment packet, time-out, and retransmission to achieve (4) control. the transport layer is also responsible for providing a connection mechanism for the application program. the application program sends (5) of data to the transport layer. it is

6、 the responsibility of the transport layer at the sending station to make a connection with the receiver.空白（2）处应选择（ ）a.procedureb.functionc.routed.flow3、a transport layer protocol has several responsibilities, one is to create a process-to-process (program-to-program) communication; tcp uses port (1

7、) to accomplish this. another responsibility of a transport layer protocol is to create a (2) and error-control mechanism at the transport level. tcp uses a sliding (3) protocol to achieve flow control. it uses the acknowledgment packet, time-out, and retransmission to achieve (4) control. the trans

8、port layer is also responsible for providing a connection mechanism for the application program. the application program sends (5) of data to the transport layer. it is the responsibility of the transport layer at the sending station to make a connection with the receiver.空白（3）处应选择（ ）a.pathb.windowc

9、.framed.diagram4、a transport layer protocol has several responsibilities, one is to create a process-to-process (program-to-program) communication; tcp uses port (1) to accomplish this. another responsibility of a transport layer protocol is to create a (2) and error-control mechanism at the transpo

10、rt level. tcp uses a sliding (3) protocol to achieve flow control. it uses the acknowledgment packet, time-out, and retransmission to achieve (4) control. the transport layer is also responsible for providing a connection mechanism for the application program. the application program sends (5) of da

11、ta to the transport layer. it is the responsibility of the transport layer at the sending station to make a connection with the receiver.空白（4）处应选择（ ）a.packetb.timec.errord.phase5、a transport layer protocol has several responsibilities, one is to create a process-to-process (program-to-program) commu

12、nication; tcp uses port (1) to accomplish this. another responsibility of a transport layer protocol is to create a (2) and error-control mechanism at the transport level. tcp uses a sliding (3) protocol to achieve flow control. it uses the acknowledgment packet, time-out, and retransmission to achi

13、eve (4) control. the transport layer is also responsible for providing a connection mechanism for the application program. the application program sends (5) of data to the transport layer. it is the responsibility of the transport layer at the sending station to make a connection with the receiver.空

14、白（5）处应选择（ ）a.portsb.streamsc.packetsd.cells6、both bus and tree topologies are characterized by the use of multipoint (1).for the bus, all stations attach, through appropriate hardware (2) known as a tap, directly to a linear transmission medium, or bus. full-duplex operation between the station and

15、the tap allows data to be transmitted onto the bus and received from the(3). a transmission from any station propagates the length of the medium in both directions and can be received by all other (4). at each end of the bus is a (5) , which absorbs any signal, removing it from the bus.空白（1）处应选择（ ）a

16、.mediumb.connectionc.tokend.resource7、both bus and tree topologies are characterized by the use of multipoint (1).for the bus, all stations attach, through appropriate hardware (2) known as a tap, directly to a linear transmission medium, or bus. full-duplex operation between the station and the tap

17、 allows data to be transmitted onto the bus and received from the(3). a transmission from any station propagates the length of the medium in both directions and can be received by all other (4). at each end of the bus is a (5) , which absorbs any signal, removing it from the bus.空白（2）处应选择（ ）a.proces

18、singb.switchingc.routingd.interfacing8、both bus and tree topologies are characterized by the use of multipoint (1).for the bus, all stations attach, through appropriate hardware (2) known as a tap, directly to a linear transmission medium, or bus. full-duplex operation between the station and the ta

19、p allows data to be transmitted onto the bus and received from the(3). a transmission from any station propagates the length of the medium in both directions and can be received by all other (4). at each end of the bus is a (5) , which absorbs any signal, removing it from the bus.空白（3）处应选择（ ）a.treeb

20、.busc.stard.ring9、both bus and tree topologies are characterized by the use of multipoint (1).for the bus, all stations attach, through appropriate hardware (2) known as a tap, directly to a linear transmission medium, or bus. full-duplex operation between the station and the tap allows data to be t

21、ransmitted onto the bus and received from the(3). a transmission from any station propagates the length of the medium in both directions and can be received by all other (4). at each end of the bus is a (5) , which absorbs any signal, removing it from the bus.空白（4）处应选择（ ）a.routersb.stationsc.servers

22、d.switches10、both bus and tree topologies are characterized by the use of multipoint (1).for the bus, all stations attach, through appropriate hardware (2) known as a tap, directly to a linear transmission medium, or bus. full-duplex operation between the station and the tap allows data to be transm

23、itted onto the bus and received from the(3). a transmission from any station propagates the length of the medium in both directions and can be received by all other (4). at each end of the bus is a (5) , which absorbs any signal, removing it from the bus.空白（5）处应选择（ ）a.tapb.repeatc.terminatord.concen

24、trator11、for (1) service, we need a virtual-circuit subnet. let us see how that works. the idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of

25、the connection setup and stored in tables inside the (4) . that route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.when the connection is released, the virtual circuit is also terminated. with connection-oriented service, each packet carri

26、es an (5) telling which virtual circuit it belongs to.空白（1）处应选择（ ）a.connectionlessb.connection-orientedc.datagramd.telegram12、for (1) service, we need a virtual-circuit subnet. let us see how that works. the idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. i

27、nstead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . that route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.when th

28、e connection is released, the virtual circuit is also terminated. with connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白（2）处应选择（ ）a.processorb.devicec.routed.terminal13、for (1) service, we need a virtual-circuit subnet. let us see how that works.

29、the idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . that route is used for all t

30、raffic flowing over the connection, exactly the same way that the telephone system works.when the connection is released, the virtual circuit is also terminated. with connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白（3）处应选择（ ）a.sourceb.routec.dest

31、inationd.host14、for (1) service, we need a virtual-circuit subnet. let us see how that works. the idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as p

32、art of the connection setup and stored in tables inside the (4) . that route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.when the connection is released, the virtual circuit is also terminated. with connection-oriented service, each packe

33、t carries an (5) telling which virtual circuit it belongs to.空白（4）处应选择（ ）a.connectionsb.resources.c.bridgesd.routers15、for (1) service, we need a virtual-circuit subnet. let us see how that works. the idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. instead,

34、when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . that route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.when the conne

35、ction is released, the virtual circuit is also terminated. with connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.空白（5）处应选择（ ）a.addressb.identifierc.interfaced.element16、an internet is a combination of networks connected by (1). when a datagram goes

36、from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. a router receives a (4) 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 pas

37、s the packet? the decision is based on optimization: which of the available (5) is the optimum pathway?空白（1）处应选择（ ）（ ）a.modemsb.routersc.switcherd.computers17、an internet is a combination of networks connected by (1). when a datagram goes from a source to a (2), it will probably pass many (3) until

38、it reaches the router attached to the destination network. a router receives a (4) 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

39、 the available (5) is the optimum pathway?空白（2）处应选择（ ）a.userb.hostc.cityd.destination18、an internet is a combination of networks connected by (1). when a datagram goes from a source to a (2), it will probably pass many (3) until it reaches the router attached to the destination network. a router receives a (4) from a network and passes it to another network. a router is usually attached to several n