In Layer 2 topologies, spanning-tree failures can cause loops in the network. These unblocked loops cancause network failures because of excessive traffic. Which two Catalyst 6500 features can be used to limitexcessive traffic during spanning-tree loop co

题目

In Layer 2 topologies, spanning-tree failures can cause loops in the network. These unblocked loops cancause network failures because of excessive traffic. Which two Catalyst 6500 features can be used to limitexcessive traffic during spanning-tree loop conditions?()

  • A、loop guard
  • B、storm control
  • C、storm suppression
  • D、broadcast suppression
  • E、BPDU guard

相似考题
更多“In Layer 2 top”相关问题
  • 第1题:

    TCP/IP communication protocol contains four layers. From bottom to top, the four layers are __(71)__.

    A.network interface layer, internet layer, transport layer and application layer

    B.internet layer, network interface layer, transport layer and application layer

    C.network interface layer, transport layer, network interface layer and application layer

    D.application layer, transport layer, internet layer and network interface layer


    正确答案:A
    TCP/IP协议是当今世界上最流行的开放系统协议集,它正在支撑着Internet的正常运转。它由4层组成,由低到高依次为网络接口层.Internet层.传输层.应用层。

  • 第2题:

    Atacertaincustomer’ssite,aNASislogicallyinthetrafficpathbutnotphysicallyinthetrafficpath.TheNASidentifiesclientsbytheirIPaddresses.InwhichaccessmodehasthisNASbeenconfiguredtooperate?()

    A.Layer2Edgemode

    B.Layer2Centralmode

    C.Layer2In-Bandmode

    D.Layer3mode


    参考答案:D

  • 第3题:

    WhichroamingoptionwillkeepthemonthesameIPsubnetwhenclienttrafficisbeingbridged throughLANinterfacesontwoWLCs?()

    A.Layer1intercontrollerroaming

    B.Layer2intercontrollerroaming

    C.Layer3intercontrollerroaming

    D.Layer4intercontrollerroaming


    参考答案:B

  • 第4题:

    WhenyoudesignQoSonCEforanMPLSLayer2VPN,whichthreethingsshouldbeconsidered?()

    A.Layer2accesslinkQoSdesign

    B.enterprise-to-service-providermappingmodels

    C.Layer3linkaccessQoSdesign

    D.serviceproviderservicelevelagreements

    E.Layer2linkaccessloadbalancing


    参考答案:A, B, D

  • 第5题:

    Acknowledgements, sequencing, and flow control are characteristics of which OSI layer()。

    A.Layer2

    B.Layer3

    C.Layer4

    D.Layer5

    E.Layer6

    F.Layer7


    参考答案:C

  • 第6题:

    在自动布线参数设置中,如设置为双面板布线,则应按照()方式进行设置。

    • A、Top layer设置为:Horizontal;Bottom  layer设置为:Any
    • B、Top layer设置为:Vertical;Bottom  layer设置为:Any
    • C、Top layer设置为:Horizontal;Bottom  layer设置为:Vertical
    • D、Top layer设置为:Not  Used;Bottom layer设置为:Vertical

    正确答案:C

  • 第7题:

    在PCB设计中,下列哪个层是用于定义电路板上有效放置元件和布线的区域()。

    • A、Signal layer
    • B、Top layer
    • C、Bottom layer
    • D、Keepout layer

    正确答案:D

  • 第8题:

    印制电路板的()层只是作为说明使用。

    • A、Keep-Out Layer
    • B、Top Overlay
    • C、Mechanical Layers
    • D、Multi-Layer

    正确答案:C

  • 第9题:

    双面板放置元件的层面一般为()

    • A、TOP LAYER
    • B、POWER PLANE
    • C、GROUND PLANE
    • D、BOTTOM LAYER

    正确答案:A

  • 第10题:

    Which two of these are characteristics of MPLS VPNs? ()

    • A、 Layer 3 MPLS VPNs can forward only IP packets
    • B、 Layer 2 MPLS VPNs can forward any network protocol
    • C、 MPL S label paths are automatically formed based on Layer 2 frames
    • D、 Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames
    • E、 In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies

    正确答案:A,B

  • 第11题:

    单选题
    When applying thermal compound to the top of a CPU, apply a:()
    A

    thick layer, making sure to cover the sides of the CPU.

    B

    very thin layer, making sure to cover the CPU.

    C

    little bit on the tip of a brush, making sure to cover the top and sides of the CPU.

    D

    small amount in the center of the CPU.


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    Where is the MPLS label imposed?()
    A

    after the Layer 3 header and before the Layer 2 payload

    B

    after the Layer 3 header and before the Layer 4 payload

    C

    after the Layer 2 header and before the Layer 1 payload

    D

    after the Layer 1 header and before the Layer 2 payload

    E

    after the Layer 2 header and before the Layer 3 payload


    正确答案: A
    解析: 暂无解析

  • 第13题:

    AtwhichlayeroftheOSImodeldoestheSpanningTreeProtocol(STP)operateat?()

    A.Layer5

    B.Layer4

    C.Layer3

    D.Layer2

    E.Layer1


    参考答案:D

  • 第14题:

    YouaretheCiscoNetworkDesignerinCisco.com.Inyourcompanysite,aNASisbothphysicall yandlogicallyinthetrafficpath.TheNASidentifiesclientssolelybasedontheirMACaddresses.InwhichaccessmodehasthisNASbeenconfiguredtooperate?()

    A.Layer2mode

    B.Layer2Edgemode

    C.Layer3mode

    D.Layer3In-Bandmode


    参考答案:A

  • 第15题:

    WhichheaderorsetofheadersdoesCRTPcompress?()

    A.Layer2

    B.Layer3

    C.Layer4

    D.Layer2andLayer3

    E.Layer3andLayer4


    参考答案:E

  • 第16题:

    Acknowledgements,sequencing,andflowcontrolarecharacteristicsofwhichOSIlayer?()

    A.Layer2

    B.Layer3

    C.Layer4

    D.Layer5

    E.Layer6

    F.Layer7


    参考答案:C

  • 第17题:

    PCB设计中的禁止布线层是()。

    • A、Top Overlay
    • B、Bottom Overlay
    • C、Internal Plane
    • D、Keep Out Layer

    正确答案:D

  • 第18题:

    In the context of MPLS,what is the correct action to be performed when an aggregate label is received ?()

    • A、It adds the VPN label into the top label in the MPLS label stack
    • B、It replaces the top label in the MPLS label stack with a VPN label and propagates
    • C、It replaces the bottom label in the MPLS label stack with a VPN label and propagates
    • D、It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets
    • E、None of above

    正确答案:D

  • 第19题:

    在PCB设计中,下列哪个层是用于定义电路板上有效放置元件和布线的区域()。

    • A、Signal layer
    • B、Top layer
    • C、Bottom layer
    • D、Keep out layer

    正确答案:D

  • 第20题:

    设置PCB板的物理边界可以在()。

    • A、Muti-layer
    • B、Top Overlayer
    • C、Signal-layer
    • D、Top Layer

    正确答案:A

  • 第21题:

    Which header or set of headers does CRTP compress? ()

    • A、Layer 2
    • B、Layer 3
    • C、Layer 4
    • D、Layer 2 and Layer 3
    • E、Layer 3 and Layer 4

    正确答案:E

  • 第22题:

    Where is the MPLS label imposed?()

    • A、after the Layer 3 header and before the Layer 2 payload
    • B、after the Layer 3 header and before the Layer 4 payload
    • C、after the Layer 2 header and before the Layer 1 payload
    • D、after the Layer 1 header and before the Layer 2 payload
    • E、after the Layer 2 header and before the Layer 3 payload

    正确答案:E

  • 第23题:

    单选题
    In a frame ,the MPLS label is imposed().
    A

    After the Layer3 header and before Layer2 header

    B

    After the Layer2 header and before Layer3 header

    C

    Within the Layer 3 header

    D

    Before the layer 2 header


    正确答案: A
    解析: 暂无解析

  • 第24题:

    单选题
    In the context of MPLS,what is the correct action to be performed when an aggregate label is received ?()
    A

    It adds the VPN label into the top label in the MPLS label stack

    B

    It replaces the top label in the MPLS label stack with a VPN label and propagates

    C

    It replaces the bottom label in the MPLS label stack with a VPN label and propagates

    D

    It removes the top label in the MPLS label stack and does a Layer 3 lookup on underlying IP packets

    E

    None of above


    正确答案: D
    解析: 暂无解析