Refer to the exhibit. Based on the information given. Which switch will be elected root bridge and why?（）
A.Switch A ,because it has the lowest MAC address
B.Switch C,because it has the lowest priority
C.Switch B,because it has the highest MAC address
D.Switch C,because it is the most centrally located switch
E.Switch A,because it is the most centrally located switch
F.Switch D,because it has the highest priority
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A.to uniquely identify devices at Layer 2
B.to allow communication with devices on a different network
C.to differentiate a Layer 2 frame from a Layer 3 packet
D.to establish a priority system to determine which device gets to transmit first
E.to allow communication between different devices on the same network
F.to allow detection of a remote device when its physical address is unknown
A.the IP address of Switch 1
B.the MAC address of Switch 1
C.the IP address of Host C
D.the MAC address of Host C
E.the IP address of the router's E0 interface
F.the MAC address of the router's E0 interface
A.application
B.internet
C.network
D.transport
A.Microsegmentation decreases the number of collisions on the network.
B.if a switch receives a frame for an unkown destination,it uses ARP to resolve the address.
C.Spanning Tree Protocol allows switches to automatically share vlan information.
D.In a properly functioning network with redundant switched paths,each switched aegment will contain one root bridge with all its ports in the forwarding state.All other switches in that broadcast domain will have only one root port.
E.Establishing vlans increases the number of broadcast domains.
F.Switches that are configured with vlans make forwarding decisions based on both layer 2 and layer 3 address information.
Refer to the exhibit.What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN?（）
A.The number of collision domains would decrease.
B.The number of collision domains would increase.
C.The number of broadcast domains would remain the same.
D.The number of collision domains would remain the same.
E. The number of broadcast domains would increase.
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