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 tha

题目

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

相似考题

1.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

2.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

3.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

4.The Ezonexam network administrator wants to ensure that only a single web server can connect to pot Fa0/1 on a catalyst switch. The server is plugged into the switch's Fast Eth. 0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of this server is allowed by switch port Fa0/1? (Choose two)A．Configure port Fa0/1 to accept connections only from the static IP address of the serverB．Configure the MAC address of the server as a static entry associated with port Fa0/1C．Employ a proprietary connector type on Fa0/1 that is incomputable with other host connectorsD．Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the serverE．Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address

参考答案和解析
正确答案：D
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 tha”相关问题

  • 第1题：

    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.RSTP

    B.root guard

    C.BPDU guard

    D.GLBP


    参考答案：C

  • 第2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.


    参考答案：C

  • 第3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 address

    B. the switch with the higest MAC address

    C. the switch witch the higest IP address

    D. the switch with the lowest IP address


    参考答案：A

  • 第4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.


    参考答案：D

  • 第5题：

    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.


    参考答案：A, C, E

  • 第6题：

    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、RSTP
    • B、root guard
    • C、BPDU guard
    • D、GLBP

    正确答案:C

  • 第7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.

    正确答案:A,B,D

  • 第8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 manner
    • B、It enforces the root bridge placement in the network
    • C、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.

    正确答案:B

  • 第9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 address
    • B、the switch with the higest MAC address
    • C、the switch witch the higest IP address
    • D、the switch with the lowest IP address

    正确答案:A

  • 第10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.


    正确答案： B
    解析： 暂无解析

  • 第11题：

    多选题
    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.


    正确答案： A,F
    解析： 暂无解析

  • 第12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


    正确答案： D
    解析： 暂无解析

  • 第13题：

    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.


    参考答案：E

  • 第14题：

    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.


    参考答案：D

  • 第15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.


    参考答案：A

  • 第16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.


    参考答案：C

  • 第17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.


    参考答案：C

  • 第18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

    正确答案:D

  • 第19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.

    正确答案:A

  • 第20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.

    正确答案:D

  • 第21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 manner

    B

    It enforces the root bridge placement in the network

    C

    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.


    正确答案： D
    解析： 暂无解析

  • 第22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.


    正确答案： B
    解析： 暂无解析

  • 第23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.


    正确答案： E
    解析： 暂无解析

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