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多項(xiàng)選擇題Two switches are connected through a trunk link.which two commands show that there is a native VLAN mismatch on that link?（）

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

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1.單項(xiàng)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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2.單項(xiàng)選擇題Which command is used to display the collection of OSPF link states?（）

A.show ip ospf lsa database
B.show ip ospf link-state
C.show ip ospf neighbors
D.show ip ospf database

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3.單項(xiàng)選擇題When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL?（）

A.show ip access-list
B.show access-list
C.list ip interface
D.show interface
E.show ip interface

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4.多項(xiàng)選擇題 如圖，如果所有的鏈接都運(yùn)行在相同的帶寬，哪些端口會(huì)被STP指定的端口？（）

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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5.單項(xiàng)選擇題Three switches are connected to one anther via trunk ports.Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1?（）

A.the switch with the lowest MAC address
B.the switch with the higest MAC address
C.the switch witch the higest IP address
D.the switch with the lowest IP address

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