單項(xiàng)選擇題Assuming default setting,how can you erase the VTP database of VLANs on a CISCO IOS switch running in VTP server mode?()

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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2.多項(xiàng)選擇題

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

3.單項(xiàng)選擇題

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

4.多項(xiàng)選擇題What are three features of the IPV6 protocol?()

A.complicated header
B.plug-and-play
C.no broadcasts
D.checksums
E.optional IPsec
F.autoconfiguration

5.多項(xiàng)選擇題哪兩個(gè)值被生成樹協(xié)議用來(lái)選舉根橋?()

A.amount of RAM
B.bridge priority
C.IOS version
D.IP address
E.MAC address
F.speed of thelinks

6.單項(xiàng)選擇題Which of these represents an IPv6 link-local address?()

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

7.多項(xiàng)選擇題

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

8.多項(xiàng)選擇題Which two statements about static NAT translations are true?()

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.

9.單項(xiàng)選擇題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-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

10.單項(xiàng)選擇題All WAN links inside the ABC University network use PPP with CHAP for authentication security. Which command will display the CHAP authentication process as it occur between two routers in the network?()

A.show chap authentication
B.show interface serial0
C.debug ppp authentication
D.debug chap authentication
E.show ppp authentication chap

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下列哪些是私有IP 地址的地址范圍?()

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題型:?jiǎn)雾?xiàng)選擇題

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?()

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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?()

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何時(shí)必須使用clock rate 命令配置路由器串行接口?()

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在路由器上使用Router#copy running-config startup-config 命令會(huì)產(chǎn)生什么效果?()

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