A.A CSU/DSU terminates a digital local loop.
B.A modem terminates a digital local loop.
C.A CSU/DSU terminates an analog local loop.
D.A modem terminates an analog local loop.
E.A router is commonly considered a DTE device.
F.A router is commonly considered a DCE device.
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A.Switches are primarily software based while bridges are hardware based.
B.Both bridges and switches forward Layer 2 broadcasts.
C.Bridges are frequently faster than switches.
D.Switches have a higher number of ports than most bridges.
E.Bridges define broadcast domains while switches define collision domains.
F.Both bridges and switches make forwarding decisions based on Layer 2 addresses.
A.addresses chosen by a company to communicate with the Internet
B.addresses that cannot be routed through the public Internet
C.addresses that can be routed through the public Internet
D.a scheme to conserve public addresses
E.addresses licensed to enterprises or ISPs by an Internet registry organization
A.during high traffic periods
B.after broken links are re-established
C.when upper-layer protocols require high reliability
D.in an improperly implemented redundant topology
E.when a dual ring topology is in use
A.TFTP server, Flash, NVRAM
B.ROM, NVRAM, TFTP server
C.NVRAM, TFTP server, ROM
D.Flash, TFTP server, ROM
E.Flash, NVRAM, ROM
A.a primary route,stored in the routing table
B.a backup route,stored in the routing table
C.a backup route,stored in the topology table
D.a primary route,stored in the topology table
A.ATM
B.IDS
C.IOS
D.IOX
E.IPS
F.SDM
A.Filtering can occur based on Layer 3 information.
B.Broadcasts are eliminated.
C.Routers generally cost less than switches.
D.Broadcasts are not forwarded across the router.
E.Adding a router to the network decreases latency.
A.remote DLCI on the main interface
B.local DLCI on the main interface
C.local DLCI on the subinterface
D.remote DLCI on the subinterface
根據(jù)下圖,該access list被配置在路由器RTB的S0/0接口上的OUT方向,哪兩個數(shù)據(jù)包會被DENY,如果被路由到該接口上的話?()
A.source ip address:192.168.15.5 destination port:21
B.source ip address:192.168.15.37 destination port:21
C.ssource ip address192.168.15.41 destination port:21
D.source ip address:192.168.15.36 destination port:23
E.source ip address:192.168.15.46 destination port:23
F.source ip address:192.168.15.49 destination port:23
A.The PC has connectivity with a local host.
B.The PC has connectivity with a Layer 3 device.
C.The PC has a default gateway correctly configured.
D.The PC has connectivity up to Layer 5 of the OSI model.
E.The PC has the TCP/IP protocol stack correctly installed.
最新試題
請參見圖示。一臺主機(jī)正使用NAT 連接到Internet。下列哪三項(xiàng)IP 地址可實(shí)現(xiàn)此連接?()
請參見圖示。主機(jī)A 和B 無法互相通信。此問題的原因是什么?()
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請參見圖示。對于從主機(jī)A 向Web 服務(wù)器發(fā)出的網(wǎng)頁請求,正確的目的套接字?jǐn)?shù)字是什么?()
在路由器上使用Router#copy running-config startup-config 命令會產(chǎn)生什么效果?()
PC 無法連接到任何遠(yuǎn)程網(wǎng)站,無法ping 通其默認(rèn)網(wǎng)關(guān),也無法ping 通本地網(wǎng)段中工作正常的打印機(jī)。以下哪項(xiàng)操作可以確認(rèn)此PC 上的TCP/IP 協(xié)議棧是否工作正常?()
下列哪些是私有IP 地址的地址范圍?()
請參見圖示。某用戶想要查看當(dāng)前的配置。圖中所示為ipconfig/all 命令的輸出。從此輸出可以得到哪三項(xiàng)結(jié)論?()
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