A.Enable VTP pruning
B.From privileged mode,erase the startup configuration file,then reload.
C.From privileged mode,erase the vlan date file,then reload.
D.Cycle the switch power.
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A.會(huì)話層
B.協(xié)議層
C.數(shù)據(jù)鏈路層
D.訪問(wèn)層
E.網(wǎng)絡(luò)層
F.應(yīng)用層
根據(jù)下圖,圖中兩個(gè)設(shè)備是網(wǎng)絡(luò)中僅有的CISCO設(shè)備,兩個(gè)設(shè)備間的串行鏈路的掩碼255.255.255.252,在下面的答案中,哪三個(gè)是正確的?()
A.Manchester的串行鏈路的地址為10.1.1.1
B.Manchester的串行鏈路的地址為10.1.1.2
C.London路由器是CISCO2610
D.London路由器是CISCO2611
E.路由器Manchester的Serial0/0端口收到CDP信息
F.路由器London的Serial0/0端口收到CDP信息
An access list was written with the four statements shown in the graphic.Which single access list statement will combine all four of these statements into a single statement that will have exactly the same effect?()
A.access-list10 permit 172.29.16.00.0.0.255
B.access-list10 permit 172.29.16.00.0.1.255
C.access-list10 permit 172.29.16.00.0.3.255
D.access-list10 permit 172.29.16.00.0.15.255
E.access-list10 permit 172.29.0.00.0.255.255
A.complicated header
B.plug-and-play
C.no broadcasts
D.checksums
E.optional IPsec
F.autoconfiguration
A.amount of RAM
B.bridge priority
C.IOS version
D.IP address
E.MAC address
F.speed of thelinks
A.FE08::280e:611:a:f14f:3d69
B.FE81::280f:512b:e14f:3d69
C.FE80::380e:611a:e14f:3d69
D.FEFE:0345:5f1b::e14d:3d69
Your boss is learning a CCNA training course,refer to the exhibit.The access list has been configured on the S0/0 interface of router RTB in the out bound direction.Which two packets,if routed to the interface,will be denied?()
access-list 101 denytcp192.168.15.320.0.0.15any eq telnet
access-list 101 permit ip any any
A.source ip address:192.168.15.5destination port:21
B.source ip address:,192.168.15.37destination port:21
C.sourcei p address:,192.168.15.41destination port:21
D.source ip address:,192.168.15.36destination port:23
E.source ip address:192.168.15.46destination port:23
F.source ip address:,192.168.15.49destination port:23
A.They are always present in the NAT table.
B.They allow connection to be initiated from the outside.
C.They can be configured with access lists,to allow two or more connections to be initiated from the outside.
D.They require no inside or outside interface markings because addresses are statically defined.
A.access-list 10 permit 172.29.16.0 0.0.0.255
B.access-list 10 permit 172.29.16.0 0.0.1.255
C.access-list 10 permit 172.29.16.0 0.0.3.255
D.access-list 10 permit 172.29.16.0 0.0.15.255
E.access-list 10 permit 172.29.0.0 0.0.255.255
A.show chap authentication
B.show interface serial0
C.debug ppp authentication
D.debug chap authentication
E.show ppp authentication chap
最新試題
PC 無(wú)法連接到任何遠(yuǎn)程網(wǎng)站,無(wú)法ping 通其默認(rèn)網(wǎng)關(guān),也無(wú)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?()
路由器使用哪一項(xiàng)信息來(lái)確定源主機(jī)和目的主機(jī)之間的路徑?()
請(qǐng)參見圖示。圖中所示路由表所屬的PC 已正確配置。IP 地址192.168.1.254屬于哪一個(gè)網(wǎng)絡(luò)設(shè)備或接口?()
請(qǐng)參見圖示。主機(jī)A 和B 無(wú)法互相通信。此問(wèn)題的原因是什么?()
何時(shí)必須使用clock rate 命令配置路由器串行接口?()
請(qǐng)參見圖示。公司路由器由于故障被更換。更換路由器之后,Education 辦公室內(nèi)的主機(jī)C 和D 能夠相互ping 通,但是無(wú)法訪問(wèn)Accounts 辦公室內(nèi)的主機(jī)。此問(wèn)題的原因可能是什么?()
請(qǐng)參見圖示。哪種邏輯拓?fù)涫菍?duì)圖示網(wǎng)絡(luò)的準(zhǔn)確描述?()
在路由器上使用Router#copy running-config startup-config 命令會(huì)產(chǎn)生什么效果?()
請(qǐng)參見圖示。下列哪組設(shè)備僅包含中間設(shè)備?()