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單項選擇題How should a router that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates（）。

A.Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface
B.Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic
C.Configure many sub-interfaces on the same subnet
D.Configure a single sub-interface to establish multiple PVC connections to multiple remote router interfaces

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1.單項選擇題Which command reveals the last method used to powercycle a router?（）

A.show reload
B.show boot
C.show running-config
D.show version

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2.單項選擇題Which protocols are found in the network layer of the OSI reference model and are responsible for path determination and traffic switching?（）

A.LAN
B.routing
C.WAN
D.network

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3.單項選擇題Which IPV6 routing protocol uses multicast group FF02：：8 to send updates？（）

A.RIPng
B.OSPFv3
C.IS-IS for IPv6
D.static

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4.單項選擇題Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintaineD.To fix this issue, at which layer should the troubleshooting process begin?（）

A.presentation
B.session
C.transport
D.network
E.physical

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5.單項選擇題Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication?（）

A.transport
B.network
C.presentation
D.session
E.application

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