名词解释题DSL
名词解释题
DSL
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相关考题：
A Bridged 1483 network is grouping DSL users into a single subnet.Where must the CPE work station’s default gateway point?() A.ERX ATM IP addressB.DSL router IP addressC.DSL bridge IP addressD.ERX loopback address
A user is connected on a DSL line and is using a PPP over Ethernet service.Which network device strips the ATM header from the datagram and investigates the PPP header?() A.DSLAMB.DSL modemC.ERX Edge RouterD.customer workstation
当一个客户通过DSL连接Internet网,DSLmodem上面有4个LED灯,PWR是稳定的绿色灯,DSL是稳定的绿色,ACT没有亮,ENET没有亮,那么最有可能造成网络不同的原因是什么?() A.modem没有检测到DSL信号B.电话线被插到DSL插口C.电脑的连接信号丢失D.modem的电源信号没有开
Which DSL encapsulation method requires client software running on the end － user PC that is directly connected to a DSL modem?() A. PPPoAB. PPPoEC. PPPD. L2TPE. ATM
The user of Host1 wants to ping the DSL modem／router at 192.168.1.254. Based on the Host1 ARP table that is shown in the exhibit, what will Host1 do()。 A.send a unicast ARP packet to the DSL modem/routerB.send unicast ICMP packets to the DSL modem/routerC.send Layer 3 broadcast packets to which the DSL modem/router respondsD.send a Layer 2 broadcast that is received by Host2, the switch, and the DSL modem/router
Which DSL encapsulation method requires client software running on the end - user PC that is directly connected to a DSL modem?（）A、PPPoAB、PPPoEC、PPPD、L2TPE、ATM
A Bridged 1483 network is grouping DSL users into a single subnet.Where must the CPE work station’s default gateway point？（）A、ERX ATM IP addressB、DSL router IP addressC、DSL bridge IP addressD、ERX loopback address
What will significantly degrade DSL performance， regardless of DSL rate or line length？ （）A、Microliters installed between a telephone and shared lineB、POTS splitters at the subscriber’s end of the DSL lineC、POTS splitters at the telco COD、None of the other alternatives apply
单选题Which DSL encapsulation method requires client software running on the end - user PC that is directly connected to a DSL modem?（）APPPoABPPPoECPPPDL2TPEATM
单选题当一个客户通过DSL连接Internet网，DSLmodem上面有4个LED灯，PWR是稳定的绿色灯，DSL是稳定的绿色，ACT没有亮，ENET没有亮，那么最有可能造成网络不同的原因是什么？（）Amodem没有检测到DSL信号B电话线被插到DSL插口C电脑的连接信号丢失Dmodem的电源信号没有开
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
判断题对于使用数字话机的ISDN用户，其电话可以从NT1上取电，也可以由DSL板进行远供，目前较常使用的两种DSL板（CB02DSL、CB03DSL）都支持这两种方式。A对B错