网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
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.
参考答案
更多 “ 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. ” 相关考题
考题
Refer to the exhibit. Switch port FastEthernet 0/24 on AlSwitch1 will be used to create an IEEE 802.1Q- complaint trunk to another switch. Based on the output shown, What is the reason the trunk does not form, even thought the proper cabling has been attached?（）A.VLANs have not been created yetB.An IP address must be configured for the portC.The port is currently configured for access modeD.The correct encapsulation type has not been configuredE.The no shutdown command has not been entered for the port
考题
Refer to the exhibit. Which of these statements correctly describes the state of the switch once the boot process has been completed?()
A.As FastEthernet0/12 will be the last to come up, it will not be blocked by STP.B.Remote access management of this switch will not be possible without configuration change.C.More VLANs will need to be created for this switch.D.The switch will need a different IOS code in order to support VLANs and STP.
考题
Refer to the exhibit. Which statement is true?()
A.The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20.B.VLAN 20 is running the Per VLAN Spanning Tree Protocol.C.The MAC address of the root bridge is 0017.596d.1580.D.SwitchA is not the root bridge, because not all of the interface roles are designated.
考题
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.
考题
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 addressB.Switch C,because it has the lowest priorityC.Switch B,because it has the highest MAC addressD.Switch C,because it is the most centrally located switchE.Switch A,because it is the most centrally located switchF.Switch D,because it has the highest priority
考题
Refer to the exibit. Three cisco 2950 switches are set to their default priority sttings.During the spanningtree process,which switch will be elected as the root bridge?()
A.Switch3B.Switch4C.Switch2D.Switch1
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
Refer to Topic TestKing.com in iPAD document.Which switch is the root bridge for VLAN 1?（）A、TestKingDB、TestKing1C、TestKing2D、TestKing3
考题
Refer to the exhibit. The output that is shown is generated at a switch. Which three of these statements are true? （）A、All ports will be in a state of discarding, learning, or forwarding.B、Thirty VLANs have been configured on this switch.C、The bridge priority is lower than the default value for spanning tree.D、All interfaces that are shown are on shared media.E、All designated ports are in a forwarding state.F、The switch must be the root bridge for all VLANs on this switch.
考题
Refer to the exibit. Three cisco 2950 switches are set to their default priority sttings.During the spanningtree process,which switch will be elected as the root bridge?（）A、Switch3B、Switch4C、Switch2D、Switch1
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
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.
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
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
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
Refer to the output shown on switch SW1 below： VLAN 1 bridge priority set to 8192. VLAN 1 bridge max aging time set to 20.VLAN 1 bridge hello time set to 2. VLAN 1 bridge forward delay set to 15. Switch is now the root switch for active VLAN 1. What command would you enter to reproduce this output？
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Refer to the exhibit. Which of these statements correctly describes the state of the switch once the boot process has been completed?（）A
As FastEthernet0/12 will be the last to come up, it will not be blocked by STP.B
Remote access management of this switch will not be possible without configuration change.C
More VLANs will need to be created for this switch.D
The switch will need a different IOS code in order to support VLANs and STP.
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
单选题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.
考题
单选题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Refer to the exibit. Three cisco 2950 switches are set to their default priority sttings.During the spanningtree process,which switch will be elected as the root bridge?（）A
Switch3B
Switch4C
Switch2D
Switch1
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Refer to Topic TestKing.com in iPAD document.Which switch is the root bridge for VLAN 1?（）A
TestKingDB
TestKing1C
TestKing2D
TestKing3
考题
问答题Refer to the output shown on switch SW1 below： VLAN 1 bridge priority set to 8192. VLAN 1 bridge max aging time set to 20.VLAN 1 bridge hello time set to 2. VLAN 1 bridge forward delay set to 15. Switch is now the root switch for active VLAN 1. What command would you enter to reproduce this output？
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
热门标签
最新试卷
