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单选题
What dose a Layer 2 switch use to decide where to forward a received frame?（）
A
source MAC address
B
source IP address
C
source switch port
D
destination IP address
E
destination port address
F
destination MAC address
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A Ezonexam Ethernet switch receives a unicast frame. with a destination MAC that is listed in the switch table. What will this switch do with the frame?A. The switch will forward the frame. to a specific portB. The switch will forward the frame. to all ports except the port on which it was receivedC. The switch will return a copy of the frame. out the source portD. The switch will not forward unicast framesE. The switch will remove the destination MAC from the switch tableF. None of the above.
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What is the purpose of unicast reverse path forwarding?()
A. to validate packet receipt on interfaces where the traffic should be receivedB. to forward packets out the interfaces where the traffic should be receivedC. to forward packets out the interfaces where the traffic should be sentD. to validate packet receipt on interfaces where the traffic should be sent
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What are three methods that may be use d to allow a switch to determine which ports to forward IP multicast messages to?()
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What does a Layer 2 switch use to decide where to forward a received frame?()
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Which two statements correctly describe a situation in which an Active／Standby Service Module design is being used?()
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考题
Which two of these are characteristics of MPLS VPNs?()
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What dose a Layer 2 switch use to decide where to forward a received frame?()
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考题
Refer to the exhibit.Switch－1 needs to send data to a host with a MAC address of 00b0.d056.efa4.What will Switch－1 do with this data?()
A.switch-1 will drop the data because it dose not have an entry for that MAC addressB.switch-1 will flood the data out all of its port from which the data originatedC.switch-1 will forward the data to its default gatewayD.tch-1 will send an ARP request out all its ports except the port from which the data originated
考题
What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table()。
A.The switch will not forward unicast frames.B.The switch will forward the frame to a specific port.C.The switch will return a copy of the frame out the source port.D.The switch will remove the destination MAC from the switch table.E.The switch will forward the frame to all ports except the port on which it was received.
考题
What are three methods that may be use d to allow a switch to determine which ports to forward IP multicast messages to?（）A、IGMPB、IGMP snoopingC、PIMD、CGMPE、static assignmentF、CDP
考题
What dose a Layer 2 switch use to decide where to forward a received frame?（）A、source MAC addressB、source IP addressC、source switch portD、destination IP addressE、destination port addressF、destination MAC address
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What does a Layer 2 switch use to decide where to forward a received frame?（）A、source MAC addressB、source IP addressC、source switch portD、destination IP addressE、destination port addressF、destination MAC address
考题
What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table?（）A、The switch will not forward unicast frames.B、The switch will forward the frame to a specific port.C、The switch will return a copy of the frame out the source port.D、The switch will remove the destination MAC from the switch table.E、The switch will forward the frame to all ports except the port on which it was received.
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What is the function of the no switchport catalyst switch interface configuration command?（）A、Disables the interfaces to prevent traffic flowB、Clears all the configurations on the interfaceC、Switches the port from access mode to trunk modeD、Converts the port from physical Layer 2 port to physical Layer 3 port
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Which two of these are characteristics of MPLS VPNs？ （）A、 Layer 3 MPLS VPNs can forward only IP packetsB、 Layer 2 MPLS VPNs can forward any network protocolC、 MPL S label paths are automatically formed based on Layer 2 framesD、 Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE、 In Layer 2 MPLS VPNS， the service provider controls the customer Layer 3 policies
考题
Which two statements correctly describe a situation in which an Active/Standby Service Module design is being used?（）A、Troubleshooting is more complicated.B、Service and switch modules are underutilized.C、Layer 2 adjacency is required with the servers that use this design.D、Layer 3 adjacency is required with the servers that use this design.E、Load balancing will always occur across both access layer uplinks.
考题
What are two results of entering the Switch(config)# vtp mode client command on a Catalyst switch?（）A、The switch will ignore VTP summary advertisementsB、The switch will forward VTP summary advertisementsC、The switch will process VTP summary advertisementsD、The switch will originate VTP summary advertisementsE、The switch will create, modify and delete VLANs for the entire VTP domain
考题
What are two characteristics of "store and forward" switching?（）A、Latency fluctuates regardless of frame size.B、The switch receives the complete frame before beginning to forward it.C、Latency through the switch varies with frame length.D、The switch checks the destination address upon receipt of headers.
考题
What is the purpose of unicast reverse path forwarding?（）A、to validate packet receipt on interfaces where the traffic should be receivedB、to forward packets out the interfaces where the traffic should be receivedC、to forward packets out the interfaces where the traffic should be sentD、to validate packet receipt on interfaces where the traffic should be sent
考题
单选题Refer to the exhibit.Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4.What will Switch-1 do with this data?（）A
switch-1 will drop the data because it dose not have an entry for that MAC addressB
switch-1 will flood the data out all of its port from which the data originatedC
switch-1 will forward the data to its default gatewayD
tch-1 will send an ARP request out all its ports except the port from which the data originated
考题
单选题What does a Layer 2 switch use to decide where to forward a received frame?（）A
source MAC addressB
source IP addressC
source switch portD
destination IP addressE
destination port addressF
destination MAC address
考题
单选题What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table（）。A
The switch will not forward unicast frames.B
The switch will forward the frame to a specific port.C
The switch will return a copy of the frame out the source port.D
The switch will remove the destination MAC from the switch table.E
The switch will forward the frame to all ports except the port on which it was received.
考题
多选题Which two of these are characteristics of MPLS VPNs?（）ALayer 3 MPLS VPNs can forward only IP packetsBLayer 2 MPLS VPNs can forward any network protocolCMPLS label paths are automatically formed based on Layer 2 framesDLayer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesEIn Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies
考题
多选题What are three methods that may be use d to allow a switch to determine which ports to forward IP multicast messages to?（）AIGMPBIGMP snoopingCPIMDCGMPEstatic assignmentFCDP
考题
多选题What are two characteristics of "store and forward" switching?（）ALatency fluctuates regardless of frame size.BThe switch receives the complete frame before beginning to forward it.CLatency through the switch varies with frame length.DThe switch checks the destination address upon receipt of headers.
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