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、The upstream DSL bandwidth is reduced， since less carriers become available for upstream trafficD、The downstream DSL bandwidth is increased
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
相关考题：
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
(c) Explain how Perfect Shopper might re-structure its downstream supply chain to address the problemsidentified in the scenario. (10 marks)
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
Which device is responsible for assigning label values in an MPLS network?() A. upstream nodeB. originating nodeC. destination nodeD. downstream node
BGP route dampening is configured on a BGP router.Whose routing behavior is affected by this configuration?() A. upstream EBGP neighborsB. downstream EBGP neighborsC. upstream IBGP neighbors learned by IBGP peersD. downstream IBGP neighbors learned by IBGP peers
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.
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）
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。
设置某ONU最大上行带宽的命令是ZXAN#（）？A、bANdwidTh dOwNsTreAM MAxiMUMB、bANdwidTh UPsTreA MAssUredC、bANdwidTh UPsTreA MfixedD、bANdwidTh UPsTreAM MAxiMUM
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.
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 channelB、The modem uses the default value in the broadcom chipsetC、The modem tuner sets a level as defined by the DOCSIS specificationD、The modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered
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、backgroundB、best effortC、voiceD、video
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
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）
Which device is responsible for assigning label values in an MPLS network?（）A、upstream nodeB、originating nodeC、destination nodeD、downstream node
BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?（）A、upstream EBGP neighborsB、downstream EBGP neighborsC、upstream IBGP neighbors learned by IBGP peersD、downstream IBGP neighbors learned by IBGP peers
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.
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
单选题What is the effect of turning on all available downstream carrier tones in a DMT DSL transmissionsystems？（）ADownstream RS error correction effectiveness is reducedBThe downstream line rate and throughput remains unchanged， but FEC efficiency is reducedCThe upstream DSL bandwidth is reduced， since less carriers become available for upstream trafficDThe downstream DSL bandwidth is increased
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）
单选题The head of the bend is the（）.Atop or upstream beginning of a bendBbottom or downstream beginning of a bendCmidpoint or center radius of a bendDcenter line or apex of a bend
单选题During the modem boot process，how does the modem acquire the downstream channel？（）AThe modem is commanded by the CMTS to set to the specific channelBThe modem uses the default value in the broadcom chipsetCThe modem tuner sets a level as defined by the DOCSIS specificationDThe modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered
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? （）AThe vessel moving upstream against the currentBThe vessel moving downstream with a following currentCThe vessel located more towards the channel centerlineDThe vessel with the least amount of maneuverability
单选题What is the use of MSDP across multiple PIM domains?（）AIt scopes multicast traffic.BIt prevents multicast routing loops.CIt advertises active multicast sources.DIt advertises RPs to all downstream routers.
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？（）Adownstream serversBPersonalizationCreporting rollupDsynchronizations