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Both bus and tree topologies are characterized by the use of multipoint (71) .For the bus,all stations attach,through appropriate hardware (72) known as a tap,directly to a linear transmission medium,or bus.Full-duplex operation between the station and th

题目

Both bus and tree topologies are characterized by the use of multipoint (71) .For the bus,all stations attach,through appropriate hardware (72) 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 transmitted onto the bus and received from the (73) .A transmission from any station propagates the length of the medium in both directions and can be received by all other (74) .At each end of the bus is a (75) ,which absorbs any signal,removing it from the bus.

(71)

A.medium

B.connection

C.token

D.resource


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正确答案:A
更多“Both bus and tree topologies are characterized by the use of multipoint(71).For the bus,al ”相关问题
  • 第1题:

    WhichthreeofthesearetypesofEthernetVirtualConnections(EVCs)intheMEFconcept?()

    A.rootedmultipointEVC(E-Tree)

    B.point-to-pointEVC(E-Line)

    C.point-to-multipointEVC(E-Tree)

    D.hubspokeEVC(E-Tree)

    E.multipoint-to-multipointEVC(E-LAN)


    参考答案:A, B, E

  • 第2题:

    以下对RBS200的TX-BUS与INTERNAL TX-BUS的描述,哪项是错误的?()

    A.TX-BUS将脉冲串送各个RTX,INTERNALTX-BUS送脉冲串至RRX,实现收发同步。

    B.TX-BUS是TG中的外部总线,INTERNALTX-BUS是TG中的内部总线。

    C.如果不开跳频,可以不用接RTX上的TX-BUS。

    D.RTX依据脉冲串中的串头频率信息来选择脉冲串,且由BBX来执行。


    参考答案:C

  • 第3题:

    .RBS2202里包含了哪几种系统总线?()

    A.本地总线、时钟总线、CDU总线和X-BUS。

    B.TIB、时钟总线、CDU总线和X-BUS。

    C.LIB、时钟总线、CDU总线和X-BUS。

    D.O&M BUS、时钟总线、CDU总线和X-BUS。


    参考答案:A

  • 第4题:

    Y-LINK相当于RBS2202中的哪些BUS()

    A.X-BUS

    B.TIMMING-BUS

    C.LOCAL-BUS

    D.CDU-BUS


    参考答案:A, B, C

  • 第5题:

    LOCAL-BUS的错误描述是()

    A.LOCAL-BUS-A用于主架,LOCAL-BUS-B用于E架

    B.621型机架的C5、C6为LOCAL-BUS的扩展接口,不用时要终止

    C.1024型机架只有C5接口,说明C5接口是LOCAL-BUS-B的接口

    D.LOCAL-BUS是一对时分总线,每个TRU单元只占用其中3个TS


    参考答案:C

  • 第6题:

    已知wire [31:0] bus;则下列说法真确的是 。

    A.bus [31]是bus的最高有效位

    B.bus [0]是bus的最高有效位

    C.bus [31]是bus的最低有效位

    D.bus [0]是bus的最低有效位


    bus [31] 是 bus 的最高有效位;bus [0] 是 bus 的最高有效位