單項選擇題A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router,as the routing protocol for the network.Which statement about thisnetwork is true?()

A.For the two vlans to communicate,a network statement for the trunk interface needs to be added to the  OSPF configuration.
B.For the two vlans to communicate, a network statement for each subinterface needs to be  added  to the OSPF configuration.
C.Direct inter-vlan communication does not require OSPF
D.OSPF cannot be used if router-on-a-stick is configured on the router


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3.單項選擇題

Refer to the exhibit.Two routers have just been configured by a new technician. All interfaces are up. However, the routers are not sharing their routing tables. What is the problem?()

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B.Router1 is configured for RIP version 2,and Router2 is configured for RIP version 1.
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E.Router1 is using authentication and Router2 is not.

5.單項選擇題There are no boot system commands in a router configuration in NVRAM.What is the fallback sequence that router will use to find an ios during reload?()

A.Flash,TFTP server,ROM
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