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多項(xiàng)選擇題Which three statements about EIGRP are true?（）

A.EIGRP converges fast RIP because of DUAL and backup routes that are stored in the topology table.
B.EIGRP uses a hello protocol to establish neighbor relationships
C.EIGRP uses split horizon and reverse poisoning to avoid routing loops.
D.EIGRP uses periodic updates to exchange routing information
E.EIGRP allows routers of different manufacturers to interoperate
F.EIGRP supports VLSM and authentication for routing updates.
G. EIGRP use a broadcast address to send routing information.

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1.單項(xiàng)選擇題Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?（）

A.show running-config
B.show processes cpu
C.debug all
D.logging host ip address

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2.單項(xiàng)選擇題哪個(gè)命令可以在交換機(jī)啟用RSTP？（）

A. spanning-tree mode rapid-pvst
B. spanning-tree uplinkfast
C. spanning-tree backbonefast
D. spanning-tree mode mst

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3.單項(xiàng)選擇題Which command encrypts all plaintext passwords?（）

A.Router(config)#password-encryption
B.Router(config)#service password-encryption
C.Router#service password-encryption
D.Router# password-encryption

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4.多項(xiàng)選擇題哪兩個(gè)命令可以用來驗(yàn)證給定的Cisco交換機(jī)的中繼鏈路的狀態(tài)？（）

A. show interfaces interface
B. show interfaces trunk
C. show interfaces switchport
D. show ip interface brief
E. show interfaces vlan

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5.多項(xiàng)選擇題Which can be done to secure the virtual terminal interfaces on a router？（）

A.Administratively shut down the interfaces.
B.Physically secure the interfaces.
C.Configure a virtual terminal password and login process.
D.Enter an access list and apply it to the terminal interfaces using the access-class command.
E.Create an access list and apply it to the terminal interfaces using the access-group command

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