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The Ezonexam network administrator needs to a switch named VE1 to become the root bridge for a redundant path switched network. What can be done to ensure that VE1 will always assume the role as the root bridge?
A．Assign the switch a higher MAC address than the other switches in the network have
B．Establish a direct link from the switch to all other switches in the network
C．Configure the switch full-duplex operation and configure the other switches for half-duplex operation
D．Configure the switch so that it has lower priority than other switches in the network
E．None of the above
参考答案
更多 “ The Ezonexam network administrator needs to a switch named VE1 to become the root bridge for a redundant path switched network. What can be done to ensure that VE1 will always assume the role as the root bridge?A．Assign the switch a higher MAC address than the other switches in the network haveB．Establish a direct link from the switch to all other switches in the networkC．Configure the switch full-duplex operation and configure the other switches for half-duplex operationD．Configure the switch so that it has lower priority than other switches in the networkE．None of the above ” 相关考题
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The Ezonexam network administrator wants to use a router named VE1 to segment the local network. What are some of the advantages of using VE1 to segment the network? (Choose two)A. Routers generally cost less than switchesB. Filtering can occur based on Layer 3 informationC. Broadcasts are not forwarded across the routerD. Broadcasts are eliminatedE. Adding a router to the network decreases latencyF. Routers can generally support more LAN ports than switches
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Why would the Ezonexam administrator change the value of the spanning-tree priority of a switch?A. in order to optimize the path that frames take from source to destinationB. to increase the priority so a designated port will become a root portC. to increase the BID, so the switch is more likely to become root bridgeD. in order to allow VLANs to be sent from one switch to another across a single linkE. to force a given switch to become an STP serverF. None of the above
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VE1 is a switch in the Ezonexam network. Why will VE1 never learn the broadcast address?A. Broadcast frames are never sent to switchesB. A broadcast frame. is never forwarded by a switchC. Broadcasts only use network layer addressingD. A broadcast address will never be the source address of a frameE. Broadcast addresses use an incorrect format for the switching tableF. None of the above
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While troubleshooting a network outage, you discover that an employee brought a switch from home into the office to connect additional equipment to the network. In order to increase his speed, he connected this switch to both network ports in his office, resulting in a bridge loop.Which of these can you implement to prevent future occurrences of this issue?（）A.RSTPB.root guardC.BPDU guardD.GLBP
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A company is experiencing network delays. The network administrator discovers that a worker in a location far from the MDF has connected an old 10BASE-T switch with redundant links to the existing network.How could this action be responsible for the impaired network performance?（）A. Connecting a host to the old switch has created a broadcast storm.B. The 10BASE-T switch forced the entire network to be reduced to 10 Mbps operation.C. The old switch does not support VLANs, which has disabled the VLAN configuration of the entire the network.D. The old switch does not support full-duplex operation, effectively forcing half-duplex operation throughout the network.E. Spanning Tree Protocol has elected the old switch as the root bridge, creating inefficient data paths through the switched network.
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Which statement describes a spanning－tree network that has converged?()
A. All switch and bridge ports are in the forwarding state.B. All switch and bridge ports are assigned as either root or designated ports.C. All switch and bridge ports are in either the forwarding or blocking state.D. All switch and bridge ports are either blocking or looping.
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What are the switch and bridge port characteristics of a layer two spanning－tree network that is fully converged?()
A. All switch and bridge ports are in the forwarding state.B. All switch and bridge ports are in the stand-by state.C. All switch and bridge ports are assigned as either root or designated ports.D. All switch and bridge ports are in either the forwarding or blocking state.E. All switch and bridge are either blocking or looping.
考题
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 addressB. the switch with the higest MAC addressC. the switch witch the higest IP addressD. the switch with the lowest IP address
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The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network?（）A. Lower the bridge priority number.B. Change the MAC address of the switch.C. Increase the VTP revision number for the domain.D. Lower the root path cost on the switch ports.E. Assign the switch an IP address with the lowest value.
考题
Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?()
A.It has more than one interface that is connected to the root network segment.B.It is running RSTP while the elected root bridge is running 802.1d spanning tree.C.It has a higher MAC address than the elected root bridge.D.It has a higher bridge ID than the elected root bridge.
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Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950, what is the most likely reason that interface FastEthernet 0／10 is not the root port for VLAN 2?()
A.This switch has more than one interface connected to the root network segment in VLAN 2.B.This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.C.This switch interface has a higher path cost to the root bridge than another in the topology.D.This switch has a lower bridge ID for VLAN 2 than the elected designated switch.
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Which three statements accurately describe layer 2 Ethernet switches?()
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.
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A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redundant path switched network. What can be done to ensure that this switch assumes the role as root bridge（）。A.Establish a direct link from the switch to all other switches in the network.B.Assign the switch a higher MAC address than the other switches in the network have.C.Configure the switch so that it has a lower priority than other switches in the network.D.Configure the switch for full-duplex operation and configure the other switches for half-duplex operation.E.Connect the switch directly to the MDF router, which will force the switch to assume the role of root bridge.
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While troubleshooting a network outage, you discover that an employee brought a switch from home into the office to connect additional equipment to the network. In order to increase his speed, he connected this switch to both network ports in his office, resulting in a bridge loop. Which of these can you implement to prevent future occurrences of this issue?（）A、RSTPB、root guardC、BPDU guardD、GLBP
考题
The network administrator has enabled BPDU guard on the LAN. Why is an effective way to prevent an unauthorized rogue switch from altering the spanning-tree topology of this network？ （）A、BPDU guard can be used to prevent invalid BPDUs from propagating throughout the network. B、BPDU guard can guarantee proper selection of the root bridge.C、BPDU guard can be utilized to prevent the switch from transmitteing BPDUs and incorrectly altering the root bridge election.D、BPDU guard can be utilized along with PortFast to shut down ports when a switch is connected to the port.E、None of the other alternatives apply
考题
Which three statements about STP timers are true？（）A、STP timers values （hello， forward delay， max age） are included in each BPDU.B、A switch is not concerned about its local configuration of the STP timers values. It will only consider the value of the STP timers contained in the BPDU it is receiving.C、To successfully exchange BPDUs between two switches， their STP timers value （hello， forward delay， max age） must be the same.D、If any STP timer value （hello， forward delay， max age） needs to be changed， it should at least be changed on the root bridge and backup root bridge.E、On a switched network with a small network diameter， the STP hello timer can be tuned to a lower value to decrease the load on the switch CPU.F、The root bridge passes the timer information in BPDUs to all routers in the Layer 3 configuration.
考题
The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch.What must be done to ensure that this new switch becomes the root bridge on the network?（）A、One router is running RIPv1.B、RIP neighbor is 224.0.0.9.C、The network contains a loop.D、Network 10.10.1.0 is reachable.
考题
As a network administrator， can you tell me what the root guard feature provides in a bridgednetwork？（）A、It ensures that BPDUs sent by the root bridge are forwarded in a timely mannerB、It enforces the root bridge placement in the networkC、It ensures that all ports receiving BPDUs from the root bridge are in the forwarding state.D、It ensures that the bridge is elected as root bridge in the network.
考题
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.
考题
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 addressB、the switch with the higest MAC addressC、the switch witch the higest IP addressD、the switch with the lowest IP address
考题
单选题As a network administrator， can you tell me what the root guard feature provides in a bridgednetwork？（）A
It ensures that BPDUs sent by the root bridge are forwarded in a timely mannerB
It enforces the root bridge placement in the networkC
It ensures that all ports receiving BPDUs from the root bridge are in the forwarding state.D
It ensures that the bridge is elected as root bridge in the network.
考题
单选题The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch.What must be done to ensure that this new switch becomes the root bridge on the network?（）A
One router is running RIPv1.B
RIP neighbor is 224.0.0.9.C
The network contains a loop.D
Network 10.10.1.0 is reachable.
考题
单选题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.
考题
多选题Which three statements about STP timers are true？（）ASTP timers values （hello， forward delay， max age） are included in each BPDU.BA switch is not concerned about its local configuration of the STP timers values. It will only consider the value of the STP timers contained in the BPDU it is receiving.CTo successfully exchange BPDUs between two switches， their STP timers value （hello， forward delay， max age） must be the same.DIf any STP timer value （hello， forward delay， max age） needs to be changed， it should at least be changed on the root bridge and backup root bridge.EOn a switched network with a small network diameter， the STP hello timer can be tuned to a lower value to decrease the load on the switch CPU.FThe root bridge passes the timer information in BPDUs to all routers in the Layer 3 configuration.
考题
单选题The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network？（）A
Lower the bridge priority number.B
Change the MAC address of the switch.C
Increase the VTP revision number for the domain.D
Lower the root path cost on the switch ports.E
Assign the switch an IP address with the lowest value.
考题
单选题The network administrator has enabled BPDU guard on the LAN. Why is an effective way to prevent an unauthorized rogue switch from altering the spanning-tree topology of this network？ （）A
BPDU guard can be used to prevent invalid BPDUs from propagating throughout the network. B
BPDU guard can guarantee proper selection of the root bridge.C
BPDU guard can be utilized to prevent the switch from transmitteing BPDUs and incorrectly altering the root bridge election.D
BPDU guard can be utilized along with PortFast to shut down ports when a switch is connected to the port.E
None of the other alternatives apply
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