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What is the effect of turning on all available downstream carrier tones in a DMT DSL transmissionsystems？（）A、Downstream RS error correction effectiveness is reducedB、The downstream line rate and throughput remains unchanged， but FEC efficiency is reducedC

题目

What is the effect of turning on all available downstream carrier tones in a DMT DSL transmissionsystems？（）

  • A、Downstream RS error correction effectiveness is reduced
  • B、The downstream line rate and throughput remains unchanged， but FEC efficiency is reduced
  • C、The upstream DSL bandwidth is reduced， since less carriers become available for upstream traffic
  • D、The downstream DSL bandwidth is increased
相似考题

1.MPLS中,标签分发方式DoD具体解释为()。A.Downstream On DemandB.Data On DemandC.Data Of DemandD.Downstream Of Demand

2.Your network contains a Windows Server Update Services (WSUS) Server infrastructure that has three servers named WSUS1, WSUS2, and WSUS3. WSUS2 is a downstream replica server of WSUS1.WSUS3 is a downstream replica server of WSUS2.You need to ensure that the Update Services console on WSUS2 only displays computers that receive updates from WSUS2.What should you configure on WSUS2？（）A. downstream serversB. PersonalizationC. reporting rollupD. synchronizations

3.Which device is responsible for assigning label values in an MPLS network?()A. upstream nodeB. originating nodeC. destination nodeD. downstream node

4.(c) Explain how Perfect Shopper might re-structure its downstream supply chain to address the problemsidentified in the scenario. (10 marks)

更多“What is the effect of turning on all available downstream carrier tones in a DMT DSL transmissionsystems？（）A、Downstream RS error correction effectiveness is reducedB、The downstream line rate and throughput remains unchanged， but FEC efficiency is reducedC”相关问题

  • 第1题：

    BGP route dampening is configured on a BGP router.Whose routing behavior is affected by this configuration?()

    A. upstream EBGP neighbors

    B. downstream EBGP neighbors

    C. upstream IBGP neighbors learned by IBGP peers

    D. downstream IBGP neighbors learned by IBGP peers


    参考答案：A

  • 第2题：

    MPLS网络中,标签分配方式有下面哪几种()

    A.下游自主方式DU（Downstream Unsolicited）

    B.下游按需方式DoD（Downstream on Demand）

    C.独立方式（Independent）

    D.有序方式（Ordered）


    参考答案：A, B

  • 第3题：

    设置某ONU最大上行带宽的命令是ZXAN#（）？

    • A、bANdwidTh dOwNsTreAM MAxiMUM
    • B、bANdwidTh UPsTreA MAssUred
    • C、bANdwidTh UPsTreA Mfixed
    • D、bANdwidTh UPsTreAM MAxiMUM

    正确答案:D

  • 第4题：

    During the modem boot process，how does the modem acquire the downstream channel？（）

    • A、The modem is commanded by the CMTS to set to the specific channel
    • B、The modem uses the default value in the broadcom chipset
    • C、The modem tuner sets a level as defined by the DOCSIS specification
    • D、The modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered

    正确答案:D

  • 第5题：

    生物工程下游技术(biotechnique downstream processing)


    正确答案:将发酵工程、 酶工程、蛋白质工程和细胞工程生产的生物原料，经过提取、分离、纯化、加工等步骤，最终形成产品的技术。

  • 第6题：

    MPLS网络中，标签分配方式有下面哪几种（）

    • A、下游自主方式DU（Downstream Unsolicited）
    • B、下游按需方式DoD（Downstream on Demand）
    • C、独立方式（Independent）
    • D、有序方式（Ordered）

    正确答案:A,B

  • 第7题：

    BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?（）

    • A、upstream EBGP neighbors
    • B、downstream EBGP neighbors
    • C、upstream IBGP neighbors learned by IBGP peers
    • D、downstream IBGP neighbors learned by IBGP peers

    正确答案:A

  • 第8题：

    Your network contains a Windows Server Update Services (WSUS) Server infrastructure that has three servers named WSUS1, WSUS2, and WSUS3. WSUS2 is a downstream replica server of WSUS1.WSUS3 is a downstream replica server of WSUS2.You need to ensure that the Update Services console on WSUS2 only displays computers that receive updates from WSUS2. What should you configure on WSUS2？（）

    • A、downstream servers
    • B、Personalization
    • C、reporting rollup
    • D、synchronizations

    正确答案:B

  • 第9题：

    多选题
    MPLS网络中，标签分配方式有下面哪几种（）
    A

    下游自主方式DU（Downstream Unsolicited）

    B

    下游按需方式DoD（Downstream on Demand）

    C

    独立方式（Independent）

    D

    有序方式（Ordered）


    正确答案： A,D
    解析： 暂无解析

  • 第10题：

    单选题
    The head of the bend is the（）.
    A

    top or upstream beginning of a bend

    B

    bottom or downstream beginning of a bend

    C

    midpoint or center radius of a bend

    D

    center line or apex of a bend


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    A vessel is proceeding downstream in a narrow channel on the Western Rivers when another vessel is sighted moving upstream. Which vessel has the right of way? （）
    A

    The vessel moving upstream against the current

    B

    The vessel moving downstream with a following current

    C

    The vessel located more towards the channel centerline

    D

    The vessel with the least amount of maneuverability


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    Your network contains a Windows Server Update Services (WSUS) Server infrastructure that has three servers named WSUS1, WSUS2, and WSUS3. WSUS2 is a downstream replica server of WSUS1.WSUS3 is a downstream replica server of WSUS2.You need to ensure that the Update Services console on WSUS2 only displays computers that receive updates from WSUS2. What should you configure on WSUS2？（）
    A

    downstream servers

    B

    Personalization

    C

    reporting rollup

    D

    synchronizations


    正确答案： C
    解析： 暂无解析

  • 第13题：

    What is the use of MSDP across multiple PIM domains?()

    A. It scopes multicast traffic.

    B. It prevents multicast routing loops.

    C. It advertises active multicast sources.

    D. It advertises RPs to all downstream routers.


    参考答案：C

  • 第14题：

    在ONU上的ADSL模式下，使用display line operation portid命令查询用户端口的实际激活速率“Actual line rate downstream/upstream”是否达到要求。


    正确答案:正确

  • 第15题：

    What is the effect of changing DMT interleaved delay from 3 milliseconds to 15 milliseconds？（）

    • A、Latency remains the same， but throughput is decreased.
    • B、Latency remains the same， but error correction effectives may also be reduced.
    • C、Latency is increased， but faster error correction occurs.
    • D、Fewer ATM PVCs can be provisioned on DSL line.

    正确答案:C

  • 第16题：

    What is the WMM user priority of the packets going downstream to the client when the client does not support TSPEC but the Cisco WLC has ACM enabled and WLAN priority is set to Platinum?（）

    • A、background
    • B、best effort
    • C、voice
    • D、video

    正确答案:B

  • 第17题：

    MPLS中，标签分发方式DoD具体解释为（）。

    • A、Downstream On Demand
    • B、Data On Demand
    • C、Data Of Demand
    • D、Downstream Of Demand

    正确答案:A

  • 第18题：

    Which device is responsible for assigning label values in an MPLS network?（）

    • A、upstream node
    • B、originating node
    • C、destination node
    • D、downstream node

    正确答案:D

  • 第19题：

    What is the use of MSDP across multiple PIM domains?（）

    • A、It scopes multicast traffic.
    • B、It prevents multicast routing loops.
    • C、It advertises active multicast sources.
    • D、It advertises RPs to all downstream routers.

    正确答案:C

  • 第20题：

    单选题
    What is the effect of turning on all available downstream carrier tones in a DMT DSL transmissionsystems？（）
    A

    Downstream RS error correction effectiveness is reduced

    B

    The downstream line rate and throughput remains unchanged， but FEC efficiency is reduced

    C

    The upstream DSL bandwidth is reduced， since less carriers become available for upstream traffic

    D

    The downstream DSL bandwidth is increased


    正确答案： B
    解析： 暂无解析

  • 第21题：

    名词解释题
    生物工程下游技术(biotechnique downstream processing)

    正确答案： 将发酵工程、 酶工程、蛋白质工程和细胞工程生产的生物原料，经过提取、分离、纯化、加工等步骤，最终形成产品的技术。
    解析： 暂无解析

  • 第22题：

    单选题
    During the modem boot process，how does the modem acquire the downstream channel？（）
    A

    The modem is commanded by the CMTS to set to the specific channel

    B

    The modem uses the default value in the broadcom chipset

    C

    The modem tuner sets a level as defined by the DOCSIS specification

    D

    The modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    What is the use of MSDP across multiple PIM domains?（）
    A

    It scopes multicast traffic.

    B

    It prevents multicast routing loops.

    C

    It advertises active multicast sources.

    D

    It advertises RPs to all downstream routers.


    正确答案： B
    解析： 暂无解析

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