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参考答案和解析
参考答案:D
更多“What is the purpose of Spanning Tree Protocol?() ”相关问题
  • 第1题:

    Which command enables RSTP on aswitch?()

    A.spanning-tree mode rapid-pvst

    B.spanning-tree uplinkfast

    C.spanning-tree backbonefast

    D.spanning-tree mode mst


    参考答案:A

  • 第2题:

    What is the purpose of Spanning Tree Protocol?()

    • A、to prevent routing loops
    • B、to create a default route
    • C、to provide multiple gateways for hosts
    • D、to maintain a loop-free Layer 2 network topology
    • E、to enhance the functions of SNMP

    正确答案:D

  • 第3题:

    MSTP的全称可能是()

    • A、Multi-Service Transmission Platforms
    • B、Multi-Service Transmission Protocol
    • C、Multi-Spanning Tree Protocol
    • D、Mutil-Spanning-tree Transparent Protocol

    正确答案:A,C

  • 第4题:

    Spanning Tree Protocol calculates path cost based on which of these? ()

    • A、 interface bandwidth
    • B、 interface delay
    • C、 interface bandwidth and delay
    • D、 hop count
    • E、 bridge priority

    正确答案:A

  • 第5题:

    What should you do to reduce spanning-tree protocol BPDU traffic during extended periods ofinstability in your VLANs?()

    • A、Combine all the VLAN spanning trees into a single spanning tree
    • B、Set forward delay and max-age timers to the maximum possible values
    • C、None of the choices
    • D、Change the router VTP server mode
    • E、Disable the root bridge

    正确答案:B

  • 第6题:

    Under which two circumstances should Spanning Tree Protocol be implemented? ()

    • A、 to ensure a loop-free topology
    • B、 to protect against user-side loops
    • C、 when a VLAN spans access layer switches
    • D、 for the most deterministic and highly available network topology
    • E、 because of the risk of lost connectivity without Spanning Tree Protocol

    正确答案:B,C

  • 第7题:

    What is the next state of initial in spanning-tree protocol?


    正确答案:blocking 

  • 第8题:

    多选题
    Which four Cisco priority Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning Tree? ()
    A

    PortFast

    B

    UplinkFast

    C

    loop guard

    D

    root guard

    E

    BPDU guard

    F

    BackboneFast


    正确答案: F,D
    解析: 暂无解析

  • 第9题:

    单选题
    pany uses MSTP within their switched LAN.  What is the main purpose of Multiple Instance  Spanning Tree Protocol (MSTP)?()
    A

     To enhance Spanning Tree troubleshooting on multilayer switches

    B

     To reduce the total number of spanning tree instances necessary for a particular topology 

    C

     To provide faster convergence when topology changes occur in a switched network

    D

     To provide protection for STP when a link is unidirectional and BPDUs are being sent but not  received

    E

     None of the other alternatives apply


    正确答案: B
    解析: 暂无解析

  • 第10题:

    多选题
    Which two values are used by Spanning Tree Protocol to elect a root bridge?()
    A

    amount of RAM

    B

    bridge priority

    C

    IOS version

    D

    IP address

    E

    MAC address

    F

    speed of the links


    正确答案: F,A
    解析: 暂无解析

  • 第11题:

    单选题
    Spanning Tree Protocol calculates path cost based on which of these?()
    A

    interface bandwidth

    B

    interface delay

    C

    interface bandwidth and delay

    D

    hop count

    E

    bridge priority


    正确答案: D
    解析: 暂无解析

  • 第12题:

    问答题
    What is the next state of initial in spanning-tree protocol?

    正确答案: blocking 
    解析: 暂无解析

  • 第13题:

    Which four Cisco priority Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning Tree? ()

    • A、 PortFast
    • B、 UplinkFast
    • C、 loop guard
    • D、 root guard
    • E、 BPDU guard
    • F、 BackboneFast

    正确答案:A,C,D,E

  • 第14题:

    Examine the following options,which Spanning Tree Protocol (STP) protection mechanism disables aswitch port if the port receives a Bridge Protocol Data Unit (BPDU)?()

    • A、Uplink Fast
    • B、Port Fast
    • C、BPDU Guard
    • D、Root Guard

    正确答案:C

  • 第15题:

    What Cisco technology protects against Spanning-Tree Protocol manipulation?()

    • A、 Spanning tree protect
    • B、 Root Guard and BPDU Guard
    • C、 Unicast Reverse Path Forwarding
    • D、 MAC spoof guard
    • E、 Port Security

    正确答案:B

  • 第16题:

    pany uses MSTP within their switched LAN.  What is the main purpose of Multiple Instance  Spanning Tree Protocol (MSTP)?()

    • A、 To enhance Spanning Tree troubleshooting on multilayer switches
    • B、 To reduce the total number of spanning tree instances necessary for a particular topology 
    • C、 To provide faster convergence when topology changes occur in a switched network
    • D、 To provide protection for STP when a link is unidirectional and BPDUs are being sent but not  received
    • E、 None of the other alternatives apply

    正确答案:B

  • 第17题:

    Which command enables RSTP on a switch?()

    • A、spanning-tree mode rapid-pvst
    • B、spanning-tree uplinkfast
    • C、spanning-tree backbonefast
    • D、spanning-tree mode mst

    正确答案:A

  • 第18题:

    Which four Cisco Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning-Tree plus?()

    • A、PortFast
    • B、UplinkFast
    • C、loop guard
    • D、root guard
    • E、BPDU guard
    • F、BackboneFast

    正确答案:A,C,D,E

  • 第19题:

    Which two statements about the various implementations of STP are true?()

    • A、mon Spanning Tree maintains a separate spanning-tree instance for each VLAN configured in the network.
    • B、The Spanning Tree Protocol (STP) is an evolution of the IEEE 802.1w standard.
    • C、Per-VLAN Spanning Tree (PVST) supports 802.1Q trunking.
    • D、Per-VLAN Spanning Tree Plus(PVST+) is an enhancement to 802.1Q specification and is supported only on Cisco devices.
    • E、Rapid Spanning Tree Protocol (RSTP) includes features equivalent to Cisco PortFast, UplinkFast, and BackboneFast for faster network reconvergence.
    • F、Multiple Spanning Tree (MST) assumes one spanning-tree instance for the entire Layer 2 network, regardless of the multiple number of VLANs

    正确答案:D,E

  • 第20题:

    单选题
    What is the purpose of Spanning Tree Protocol?()
    A

    to prevent routing loops

    B

    to create a default route

    C

    to provide multiple gateways for hosts

    D

    to maintain a loop-free Layer 2 network topology

    E

    to enhance the functions of SNMP


    正确答案: C
    解析: 暂无解析

  • 第21题:

    多选题
    Under which two circumstances should Spanning Tree Protocol be implemented? ()
    A

    to ensure a loop-free topology

    B

    to protect against user-side loops

    C

    when a VLAN spans access layer switches

    D

    for the most deterministic and highly available network topology

    E

    because of the risk of lost connectivity without Spanning Tree Protocol


    正确答案: D,A
    解析: 暂无解析

  • 第22题:

    单选题
    What Cisco technology protects against Spanning-Tree Protocol manipulation?()
    A

     Spanning tree protect

    B

     Root Guard and BPDU Guard

    C

     Unicast Reverse Path Forwarding

    D

     MAC spoof guard

    E

     Port Security


    正确答案: E
    解析: 暂无解析

  • 第23题:

    多选题
    Which four Cisco Spanning Tree Protocol enhancements are supported with rapid per-VLAN Spanning-Tree plus?()
    A

    PortFast

    B

    UplinkFast

    C

    loop guard

    D

    root guard

    E

    BPDU guard

    F

    BackboneFast


    正确答案: A,D
    解析: 暂无解析