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多項選擇題What are three IPv6 transition mechanisms？（）

A.6to4 tunneling
B.VPN tunneling
C.GRE tunneling
D.ISATAP tunneling
E.PPP tunneling
F.Teredo tunneling

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1.多項選擇題A network administrator needs to configure port security on a switch.which two statements are true?（）

A.The network administrator can apply port security to dynamic access ports
B.The network administrator can configure static secure or sticky secure mac addresses in the voice vlan.
C.The sticky learning feature allows the addition of dynamically learned addresses to the running configuration.
D.The network administrator can apply port security to EtherChannels.
E.When dynamic mac address learning is enabled on an interface,the switch can learn new addresses,up to the maximum defined.

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2.多項選擇題 Which series of commands will configure router R1 for LAN-to-LAN communication with router R2？ The enterprise network address is 192.1.1.0/24 and the routing protocol in use is RIP.（）

A.R1（config）# interface ethernet 0；R1（config-if）# ip address 192.1.1.129 255.255.255.192；R1（config-if）# no shutdown
B.R1（config）# interface ethernet 0；R1（config-if）# ip address 192.1.1.97 255.255.255.192；R1（config-if）# no shutdown
C.R1（config）# interface serial 0；R1（config-if）# ip address 192.1.1.4 255.255.255.252；R1（config-if）# clock rate 56000
D.R1（config）# interface serial 0；R1（config-if）# ip address 192.1.1.6 255.255.255.252；R1（config-if）# no shutdown
E.R1（config）# router rip；R1（config-router）# network 192.1.1.4；R1（config-router）# network 192.1.1.128
F.R1（config）# router rip；R1（config-router）# version 2；R1（config-router）# network 192.1.1.0

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3.多項選擇題 請參見圖示。當收到下列幀將會怎么做？（）

A.Router1的將剝離的源MAC地址，并將其與MAC地址0000.0c36.6965取代。
B.Router1的將剝離的源IP地址，并將其與IP地址192.168.40.1取代。
C.router1將剝離的目的MAC地址，并將其與MAC地址代替0000.0c07.4320。
D.router1將剝離的目的IP地址，并將其與192.168.40.1的IP地址替換。
E.Router1的將轉(zhuǎn)發(fā)數(shù)據(jù)包輸出接口的FastEthernet0/1。
F.router1將轉(zhuǎn)發(fā)數(shù)據(jù)包輸出接口的FastEthernet0/2。

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4.單項選擇題Running both IPv4 and IPv6 on a router simultaneously is known as what？（）

A.4to6 routing
B.6to4 routing
C.binary routing
D.dual-stack routing
E.NextGen routing

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5.單項選擇題What is the most likely reason for the dispartly between the actual network numbers at the branches and the routes in the routing table on Gateway-Router?（）

A.Branch-Router2 is configured to send both RIPv1 and RIPv2 updates.
B.Gateway-Router is configured to only receive RIPv2 updates.
C.Gateway-router is configured to receive only RIPv1 updates.
D.Branch-Router1 is configured to only send RIPv1 updates

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