UMG8900支持ATM承载的业务类型包括()。A、rt-VBR(real-time Variable Bit Rate)B、ABR(Available bit rate)C、CBR(Constant Bit Rate)D、UBR(Unspecified Bit Rate)E、nrt-VBR(noreal-time Variable Bit Rate)

题目

UMG8900支持ATM承载的业务类型包括()。

  • A、rt-VBR(real-time Variable Bit Rate)
  • B、ABR(Available bit rate)
  • C、CBR(Constant Bit Rate)
  • D、UBR(Unspecified Bit Rate)
  • E、nrt-VBR(noreal-time Variable Bit Rate)

相似考题
参考答案和解析
正确答案:A,C,D
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  • 第1题:

    下列关于ATM业务服务质量从高到低的排序,正确的是()。

    A.CBR ABR rt-VBR nrt-VBR UBR

    B.rt-VBR nrt-VBR CBR ABR UBR

    C.CBR rt-VBR nrt-VBR ABR UBR

    D.Rt-VBR CBR nrt-VBR UBR ABR


    答案C

  • 第2题:

    Which two statements are true about traffic shaping and traffic policing?()

    • A、both traffic shaping and traffic policing cause retransmissions of connection-oriented protocols such as TCP
    • B、both traffic shaping and traffic policing support the marking and re-marking of traffic
    • C、the effects of traffic shaping and traffic policing when configured on a router are applied to outgoing traffic
    • D、traffic shaping queues excess traffic whereas traffic policing discards excess traffic
    • E、traffic shaping allows the traffic to exceed the bit rate whereas traffic policing prevents the traffic from exceeding the bit rate

    正确答案:C,D

  • 第3题:

    下列关于ATM 业务服务质量从高到低的排序,正确的是()   

    • A、 CBR ABR rt-VBR nrt-VBR UBR
    • B、 rt-VBR nrt-VBR CBR ABR UBR
    • C、 CBR rt-VBR nrt-VBR ABR UBR
    • D、 Rt-VBR CBR nrt-VBR UBR ABR

    正确答案:C

  • 第4题:

    What is the advantage of using DTX for an MS? ()

    • A、Increases battery life
    • B、Better Bit Error Rate (BQRE)
    • C、Higher strength
    • D、Increased bit rate
    • E、Better voice quality

    正确答案:A

  • 第5题:

    在链路预算表中,RLCrate与MACrate的关系是()

    • A、RLC rate = MAC rate×90%
    • B、RLC rate = MAC rate×80%
    • C、RLC rate = MAC rate×70%
    • D、RLC rate = MAC rate×60%

    正确答案:A

  • 第6题:

    What is the MD5 algorithm used for?()

    • A、takes a fixed-length message and produces a 128-bit message digest
    • B、takes a variable-length message and produces a 168-bit message digest
    • C、takes a message less than 2^64 bits as input and produces a 160-bit message digest
    • D、takes a variable-length message and produces a 128-bit message digest ActualTests.com

    正确答案:D

  • 第7题:

    Which three statements are correct about Rate Limiters? ()(Choose three.)

    • A、one-rate rate limiters
    • B、two-rate rate limiters
    • C、two-rate rate limiters is the default
    • D、one-rate rate limiters is the default
    • E、there is no default it must be configured

    正确答案:A,B,C

  • 第8题:

    单选题
    When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the interface clock rate determined()。
    A

    It is supplied by the CSU/DSU.

    B

    It is supplied by the far end router.

    C

    It is determined by the clock rate command.

    D

    It is supplied by the Layer 1 bit stream timing.


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    Which codec standard requires a bit rate of 64 kbps to maintain a mean opinion score of 4.1?()
    A

    G711

    B

    G726

    C

    G728

    D

    G729

    E

    G729A


    正确答案: E
    解析: 暂无解析

  • 第10题:

    单选题
    You would like to configure an ATM PVC with a virtual circuit identifier of 33 on virtual path 0.The PVC should use an unspecified bit rate and be encapsulated in the AAL5SNAP format.Which command accomplishes this goal?()
    A

    atm pvc0/33 aal5snap

    B

    atm pvc33033 aal5snap

    C

    atm pvc0/33 aal5snap ubr

    D

    atm pvc33033 aal5snap ubr


    正确答案: D
    解析: 暂无解析

  • 第11题:

    多选题
    有关缺省承载说法正确的是()
    A

    保证客户在开始业务时具有更短的时延

    B

    可提供基本的连接服务

    C

    为PDN连接提供Always-on服务

    D

    是Non-GBR(Non-Guaranteed Bit RatE.类型的承载


    正确答案: D,C
    解析: 暂无解析

  • 第12题:

    单选题
    Which of the following is true of DHL according to the passage?
    A

    It cooperates with TNT Skypack.

    B

    It is showing signs of exhaustion.

    C

    It might have a leading position in the international courier business.

    D

    It has an annual growth rate of 5 %.


    正确答案: C
    解析:
    是非题。第一段最后一句提到“That and its annual growth rate of around 5% have worried DHL, the market leader….”,其中the market leader是DHL的同位语。由此可以推测DHL在国际快递业处于领先地位。因此选C。

  • 第13题:

    When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the interface clock rate determined()。

    A.It is supplied by the CSU/DSU.

    B.It is supplied by the far end router.

    C.It is determined by the clock rate command.

    D.It is supplied by the Layer 1 bit stream timing.


    参考答案:A

  • 第14题:

    Which codec standard requires a bit rate of 64 kbps to maintain a mean opinion score of 4.1?()

    • A、G711
    • B、G726
    • C、G728
    • D、G729
    • E、G729A

    正确答案:A

  • 第15题:

    通过命令ADD PVCTRF配置流量参数表,增加PVC时指定连接所使用的流量参数不支持的业务类别有()。

    • A、rt-VBR(real-time Variable Bit Rate)
    • B、CBR(Constant Bit Rate)
    • C、UBR(Unspecified Bit Rate)
    • D、PBR(Pead Bit Rate)

    正确答案:D

  • 第16题:

    有关缺省承载说法正确的是()

    • A、保证客户在开始业务时具有更短的时延
    • B、可提供基本的连接服务
    • C、为PDN连接提供Always-on服务
    • D、是Non-GBR(Non-Guaranteed Bit RatE.类型的承载

    正确答案:A,B,C,D

  • 第17题:

    有关缺省承载说法正确的是()

    • A、保证客户在开始业务时具有更短的时延
    • B、可提供基本的连接服务
    • C、为PDN连接提供Always-on服务
    • D、是Non-GBR(Non-Guaranteed Bit Rate)类型的承载

    正确答案:A,B,C,D

  • 第18题:

    You would like toconfigure an ATM PVC with a virtual circuit identifier of 33 on virtual path 0.The PVC should use an unspecified bit rate and be encapsulated in the AAL5SNAP format. Which command accomplishes this goal?()

    • A、atm pvc 0/33 aal5snap
    • B、atm pvc 33 0 33aal5snap
    • C、atm pvc 0/33 aal5snap ubr
    • D、atm pvc 33 0 33 aal5snap ubr

    正确答案:B

  • 第19题:

    ATM中的CBR(constant bit rate)模拟的是()业务

    • A、报文交换
    • B、分组交换
    • C、电路交换
    • D、时分交换

    正确答案:C

  • 第20题:

    单选题
    You are making a sharp turn in a channel and using a buoy four points on the bow to gauge your rate of turn.If you observe the buoy moving aft relative to you,what should you do().
    A

    Increase the rate of turn

    B

    Decrease the rate of turn

    C

    Maintain a constant rate of turn

    D

    Decrease speed


    正确答案: C
    解析: 暂无解析

  • 第21题:

    单选题
    According to paragraph 1, what can we know about cardiac arrest?
    A

    It’s far away from Americans.

    B

    It has a high death rate now.

    C

    Its occurrence depends on where you live.

    D

    The survival relies on the real estate.


    正确答案: B
    解析:
    事实细节题。根据题于提示定位至第一段。由本段前两句可知:在医院之外人能够幸免于心脏骤停的几率非常小,可见该病死亡率很高,所以答案是B;文中remote结合上下文的意思应该是“几率非常小,遥远的”A只是其表面意思,因而不正确;由文章后三句可知,幸存的可能性取决于你居住的地点,而C该病的发病由居住地方决定,不合文意;文中最后一句It’s like real estate—location 是用房地产地点的重要性来比喻幸存与所处地方的重要关系,D不符合文意,故排除。

  • 第22题:

    单选题
    Which statement describes how RSVP guarantees bandwidth reservations?()
    A

    It polices each individual session to an explicit rate.

    B

    It does not police, but never allows link oversubscription.

    C

    It polices the aggregate rate of all sessions to an explicit rate.

    D

    It does not police, but limits the amount of reservable bandwidth.


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    A

    Your heart rate is lowered.

    B

    It becomes harder to relax.

    C

    You become too tired to sleep.

    D

    Sleep rhythms are disrupted.


    正确答案: C
    解析:
    [考点]细节题。turn and twist改变睡姿,Kim说会导致心跳加速,很难放松。