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多項(xiàng)選擇題 Refer to the topology shown in the exhibit. Which ports will be STP designated ports if all the links are operating at the same bandwidth? （）

A.Switch A - Fa0/0
B.Switch A - Fa0/1
C.Switch B - Fa0/0
D.Switch B - Fa0/1
E.Switch C - Fa0/0
F.Switch C - Fa0/1

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1.多項(xiàng)選擇題What are three valid reasons to assign ports to VLANs on a switch? （）

A.to make VTP easier to implement
B.to isolate broadcast traffic
C.to increase the size of the collision domain
D.to allow more devices to connect to the network
E.to logically group hosts according to function
F.to increase network security

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2.單項(xiàng)選擇題In which integration method is an IPV6 packet encapsulated within an IPV4 protocol？（）

A.proxy
B.dual-stack
C.tunneling
D.dot1q

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3.單項(xiàng)選擇題How many collision domains are shown（）。

A.one
B.two
C.three
D.four
E.six
F.fourteen

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4.單項(xiàng)選擇題 The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem？（）

A.The Gallant router has the wrong LM Itype configured
B.Inverse ARP is providing the wrong PVC information to the Gallant router
C.The S3 interface ofthe Steele router has been configured with the frame-relay encapsulation ietf command
D.The frame-relay map statement in the Attalla router for the PVC to Steele is not correct
E.The IP address on the serial interface of the Attalla router is configured incorrectly

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5.多項(xiàng)選擇題Which are valid modes for a switch port used as a VLAN trunk (Choose three.)（）。

A.transparent
B.auto
C.on
D.desirable
E.blocking
F.forwarding

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