Which switch port error is an indication of duplex mismatches on 10/100/1000 IEEE 802.3u Gigabit Ethernet ports？（）A、FCS errorsB、RuntsC、Multiple collisionsD、Alignment errors
Which switch port error is an indication of duplex mismatches on 10/100/1000 IEEE 802.3u Gigabit Ethernet ports？（）
- A、FCS errors
- B、Runts
- C、Multiple collisions
- D、Alignment errors
相关考题：
A technician needs to manage a switch by using the management port on the back of the switch.Which of the following cables would the technician use?() A.StraightB.ConsoleC.CrossoverD.Loopback
Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?() A. crossoverB. straight-throughC. rolledD. shielded twisted-pair
Refer to the exhibit. At the end of an RSTP election process, which access layer switch port will assume the discarding role?() A.Switch3, port fa0/1B.Switch3, port fa0/12C.Switch4, port fa0/11D.Switch4, port fa0/2E.Switch3, port Gi0/1F.Switch3, port Gi0/2
Which are valid modes for a switch port used as a VLAN trunk? () A.transparentB.autoC.onD.desirable
Which set of commands is recommended to prevent the use of a hub in the access layer?() A.switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1B.switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1C.switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1D.switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1
Refer to the diagram. Which three statements describe the router port configuration and the switch port configuration as shown in the topology? () A.The Router1 WAN port is configured as a trunking port.B.The Router1 port connected to Switch1 is configured using subinterfaces.C.The Router1 port connected to Switch1 is configured as 10 Mbps.D.The Switch1 port connected to Router1 is configured as a trunking port.E.The Switch1 port connected to Host B is configured as an access port.F.The Switch1 port connected to Hub1 is configured as full duplex.
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.
Which of the following three port types are valid Spanning Tree port types？（Choose the best threeanswers.）（）A、Designated portB、Nonswitch portC、Switch portD、Nonroot portE、Nondesignated portF、Root port
A technician needs to manage a switch by using the management port on the back of the switch.Which of the following cables would the technician use?（）A、StraightB、ConsoleC、CrossoverD、Loopback
Which set of commands is recommended to prevent the use of a hub in the access layer?（）A、switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1B、switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1C、switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1D、switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1
What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-tree topology？（）A、lowest port MAC addressB、port priority number and MAC addressC、VTP revision numberD、highest port priority numberE、path cost
A port in a redundant topology is currently in the blocking state and is not receiving BPDUs. To ensure that this port does not erroneously transition to the forwarding state， which command should be configured to satisfy the requirement？（）A、Switch（config）#spanning-tree loopguard defaultB、Switch（config-if）#spanning-tree bdpufilterC、Switch（config）#udld aggressiveD、Switch（config-if）#spanning-tree bpduguard
Which two of the following statements describe a routed switch port on a multilayer switch？（）A、Layer 2 switching and Layer 3 routing are mutually supported.B、The port will not be associated with any VLAN.C、The routed switch port supports VLAN subinterfaces.D、The routed switch port is used when a switch has only one port per VLAN or subnet.E、The routed switch port ensures that STP remains in the forwarding state.
What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?（）A、path costB、lowest port MAC addressC、VTP revision numberD、highest port priority numberE、port priority number and MAC address
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.
Which type of cable is used to connect the COM port of a host to the COM port of a router or switch?（）A、crossoverB、straight-throughC、rolledD、shielded twisted-pair
Which connection type is available on a virtual switch?（）A、service console portB、ESX machine port groupC、virtual machine port group
Which statement is correct about RSTP port roles？（）A、The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.B、The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.C、The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.D、The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.
Which are valid modes for a switch port used as a VLAN trunk?（）A、transparentB、autoC、onD、desirableE、blockingF、forwarding
Which are valid modes for a switch port used as a VLAN trunk? （）A、transparentB、autoC、onD、desirable
In which Spanning-Tree states does a switch port learn MAC addresses?（）A、BlockingB、ListeningC、ForwardingD、LearningE、Relaying
单选题Refer to the exhibit. At the end of an RSTP election process, which access layer switch port will assume the discarding role?（）A Switch3, port fa0/1B Switch3, port fa0/12C Switch4, port fa0/11D Switch4, port fa0/2E Switch3, port Gi0/1F Switch3, port Gi0/2
单选题Which statement is correct about RSTP port roles？（）AThe designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.BThe disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.CThe backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.DThe root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.
单选题Which statement describes multihop FCoE function when an FCoE switch receives an FCoE frame from the directly connected FCoE host？（）A The switch receives the FCoE frame and forwards it to another switch over its VE port.B The switch receives the FCoE frame， deapsulates it， and sends the Fibre Channel frame to the fabric over its Fibre Channel uplink port.C The switch receives the FCoE frame， deapsulates it， and sends the Fibre Channel frame to the Fibre Channel target over its Fibre Channel port.D The switch receives the FCoE frame and forwards it to another FCoE device over its VN port.
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（）。AThe switch will not forward unicast frames.BThe switch will forward the frame to a specific port.CThe switch will return a copy of the frame out the source port.DThe switch will remove the destination MAC from the switch table.EThe switch will forward the frame to all ports except the port on which it was received.
单选题Which connection type is available on a virtual switch?（）Aservice console portBESX machine port groupCvirtual machine port group
多选题In which Spanning-Tree states does a switch port learn MAC addresses?（）ABlockingBListeningCForwardingDLearningERelaying
多选题Which two of the following statements describe a routed switch port on a multilayer switch？（）ALayer 2 switching and Layer 3 routing are mutually supported.BThe port will not be associated with any VLAN.CThe routed switch port supports VLAN subinterfaces.DThe routed switch port is used when a switch has only one port per VLAN or subnet.EThe routed switch port ensures that STP remains in the forwarding state.