A.RSTP significantly reduces topology reconverging time after a link failure.
B.RSTP expends the STP port roles by adding the alternate and backup roles.
C.RSTP portatates are blocking,discarding,learing,orforwarding.
D.RSTP also uses the STP proprsal-agreement sequence.
E.RSTP use the same timer-baseed process as STP on point-to-point links.
F.RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
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A.Because of damaged flash memory, the router will fail the POST.
B.It will attempt to locate the IOS from a TFTP server. If this fails, it will initiate the setup dialog.
C.It will attempt to locate the IOS from a TFTP server. If this fails, it will load a limited IOS from ROM.
D.It will attempt to locate the configuration file from a TFTP server. If this fails, it will initiate the setup dialog.
E.It will attempt to locate the configuration file from a TFTP server. If this fails, it will load a limited configuration from ROM.
A.The denied MAC addresses have already been learned or confgured on another secure interface in the same VLAN.
B.The denied MAC address are statically configured on the port.
C.The minimum MAC threshold has been reached.
D.The absolute aging times for the denied MAC addresses have expired.
A.the summarized address for all of the internal subnetted addresses
B.the MAC address of the router used by inside hosts to connect to the Internet
C.a globally unique, private IP address assigned to a host on the inside network
D.a registered address that represents an inside host to an outside network
A.205.7.8.32/27
B.191.168.10.2/23
C.127.0.0.1
D.224.0.0.10
E.203.123.45.47/28
F.10.10.0.0/13
A.VTP allows routing between VLANs.
B.VTP allows a single port to carry information to more than one VLAN.
C.VTP allows physically redundant links while preventing switching loops.
D.VTP allows switches to share VLAN configuration information.
A.FTP
B.Telnet
C.SMTP
D.DNS
E.HTTP
F.POP3
A.NAT protects network security because privat enetworks are not advertised.
B.NAT accelerates the routing process because no modifications are made on the packets.
C.Dynamic NAT facilitates connections from the outside of the network.
D.NAT facilitates end-to-end communication when IPsec is enable.
E.NAT eliminates the need to re-address all host that require extemal access.
F.NAT conserves addresses through host MAC-level multiplexing.
A.to map all the devices on a network.
B.to display the current TCP/IP configuration values.
C.to see how a device MAC address is mapped to its IP address.
D.to see the path a packet will take when traveling to a specified destination.
E.to display the MTU values for each router in a specified network path from source to a destination.
A.point-to-point and multiaccess
B.point-to-multipoint and multiaccess
C.point-to-point and point-to-multipoint
D.nonbroadcast and broadcast multipoint
E.nonbroadcast and broadcast multiaccess
A.denial of service
B.brute force
C.reconnaissance
D.Trojan horse
最新試題
要將數(shù)據(jù)包發(fā)送到遠(yuǎn)程網(wǎng)絡(luò),應(yīng)使用哪種設(shè)備?()
請(qǐng)參見圖示。一臺(tái)路由器(其路由表如圖所示)收到發(fā)往192.168.1.4的數(shù)據(jù)包。路由器將如何處理該數(shù)據(jù)包?()
請(qǐng)參見圖示。RouterB 已經(jīng)過正確配置。RouterA 的以太網(wǎng)接口Fa0/0已使用如圖所示的命令進(jìn)行配置。但是,從RouterA 的Fa0/0接口無法成功ping 通RouterB 的Fa0/0接口。應(yīng)在RouterA 上采取什么措施來解決此問題?()
請(qǐng)參見圖示。已啟用路由器的NAT 功能供PC 訪問Internet??梢詾槁酚善鹘涌赟0/0/0分配下列哪一個(gè)IP 地址?()
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?()
OSI 模型的哪兩項(xiàng)功能在第2層實(shí)現(xiàn)?()
傳輸層如何讓主機(jī)能同時(shí)針對(duì)不同應(yīng)用程序維護(hù)多個(gè)通信流?()
請(qǐng)參見圖示。網(wǎng)絡(luò)技術(shù)人員試圖確定主機(jī)A 的正確IP 地址配置。以下哪一項(xiàng)是主機(jī)A 的有效配置?()
請(qǐng)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?()
請(qǐng)參見圖示。主機(jī)A 正在訪問多臺(tái)服務(wù)器。結(jié)合使用什么端口號(hào)和地址即可唯一識(shí)別特定服務(wù)器上運(yùn)行的特定進(jìn)程?()