Layer 3 （the network layer） provides connectivity and path selection between two host systems that may be located on geographically separated networks. Which two devices operate at the network layer？（）A、 applicationB、 hubC、 switchD、 bridgeE、 router

题目

Layer 3 （the network layer） provides connectivity and path selection between two host systems that may be located on geographically separated networks. Which two devices operate at the network layer？（）

  • A、 application
  • B、 hub
  • C、 switch
  • D、 bridge
  • E、 router
相似考题

1.Layer n on one machine carries on a conversation with layer n on another machinE.The rules and conventions used in this conversation are collectively known as the layer nA． topologyB．protocolC．serviceD．peer

2.When an IP packet is Layer 3－switched from a source in one VLAN to a destination in another VLAN,which field in a packet will be rewritten? ()A. Layer 2 TTLB. Layer 3 TTLC. Layer 3 source addressD. Layer 3 transport protocolE. Layer 3 destination address

3.WhichdeployedVoWLANclientsecurityoptionisrecommendedbyCisco?()A.Layer3withLayer3SecuritysettoNoneandWebPolicysettoAuthenticationB.Layer3withLayer3SecuritysettoNoneandWebPolicysettoVPNPass-ThroughC.Layer3withLayer3SecuritysettoVPNPass-ThroughD.Layer2withLayer2Securitysetto802.1X

4.Acknowledgements, sequencing, and flow control are functions that are handled by which layer of the OSI model?A. Layer 5B. Layer 4C. Layer 7D. Layer 6E. Layer 3F. Layer 2G. Layer 1

更多“Layer 3 （the n”相关问题

  • 第1题：

    AtwhichlayeroftheOSImodeldoestheSpanningTreeProtocol(STP)operateat?()

    A.Layer5

    B.Layer4

    C.Layer3

    D.Layer2

    E.Layer1


    参考答案：D

  • 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：

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

    A.Layer2mode

    B.Layer2Edgemode

    C.Layer3mode

    D.Layer3In-Bandmode


    参考答案：A

  • 第4题：

    WhichtwoofthesearecharacteristicsofMPLSVPNs?()

    A.Layer3MPLSVPNscanforwardonlyIPpackets

    B.Layer2MPLSVPNscanforwardanynetworkprotocol

    C.MPLSlabelpathsareautomaticallyformedbasedonLayer2frames

    D.Layer3MPLSVPNscanforwardanynetworkprotocolbasedonLayer2frames

    E.InLayer2MPLSVPNS，theserviceprovidercontrolsthecustomerLayer3policies


    参考答案：A, B

  • 第5题：

    At which layer of the OSI model dose PPP perform?()

    A. Layer 3

    B. Layer 4

    C. Layer 2

    D. Layer 5


    参考答案：C

  • 第6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7题：

    Which deployed VoWLAN client security option is recommended by Cisco?（）

    • A、Layer 3 with Layer 3 Security set to None and Web Policy set to Authentication
    • B、Layer 3 with Layer 3 Security set to None and Web Policy set to VPN Pass-Through
    • C、Layer 3 with Layer 3 Security set to VPN Pass-Through
    • D、Layer 2 with Layer 2 Security set to 802.1X

    正确答案:D

  • 第8题：

    Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?（）

    • A、Layer 2
    • B、Layer 3
    • C、Layer 4
    • D、Layer 5
    • E、Layer 6
    • F、Layer 7

    正确答案:C

  • 第9题：

    When an IP packet is Layer 3-switched from a source in one VLAN to a destination in another VLAN,which field in a packet will be rewritten? （）

    • A、Layer 2 TTL
    • B、Layer 3 TTL
    • C、Layer 3 source address
    • D、Layer 3 transport protocol
    • E、Layer 3 destination address

    正确答案:B

  • 第10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11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12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13题：

    Atacertaincustomer’ssite,aNASisbothphysicallyandlogicallyinthetrafficpath.TheNAS identifiesclientssolelybasedontheirMACaddresses.InwhichaccessmodehasthisNASbeen configuredtooperate?()

    A.Layer2mode

    B.Layer3Edgemode

    C.Layer3Centralmode

    D.Layer3In-Bandmode


    参考答案：A

  • 第14题：

    Which two practices will avoid Cisco Express Forwarding polarization?()

    A. The core layer should use default Layer 3 hash information.

    B. The core layer should use default Layer 4 hash information.

    C. The distribution layer should use default Layer 3 hash information.

    D. The distribution layer should use default Layer 4 hash information.

    E. The core layer should use Layer 3 and Layer 4 information as input to the Cisco Expressing Forwarding hashing algorithm.

    F. The distribution layer should use Layer 3 and Layer 4 information as input into the Cisco Expressing Forwarding hashing algorithm.


    参考答案：A, F

  • 第15题：

    WhichroamingoptionwillkeepthemonthesameIPsubnetwhenclienttrafficisbeingbridged throughLANinterfacesontwoWLCs?()

    A.Layer1intercontrollerroaming

    B.Layer2intercontrollerroaming

    C.Layer3intercontrollerroaming

    D.Layer4intercontrollerroaming


    参考答案：B

  • 第16题：

    WhichheaderorsetofheadersdoesCRTPcompress?()

    A.Layer2

    B.Layer3

    C.Layer4

    D.Layer2andLayer3

    E.Layer3andLayer4


    参考答案：E

  • 第17题：

    Acknowledgements,sequencing,andflowcontrolarecharacteristicsofwhichOSIlayer?()

    A.Layer2

    B.Layer3

    C.Layer4

    D.Layer5

    E.Layer6

    F.Layer7


    参考答案：C

  • 第18题：

    At which layer of the OSI model dose PPP perform?（）

    • A、Layer 3
    • B、Layer 4
    • C、Layer 2
    • D、Layer 5

    正确答案:C

  • 第19题：

    When an IP packet is Layer 3-switched from a source in one VLAN to a destination in anotherVLAN, which field in a packet will be rewritten? （）

    • A、Layer 2 TTL
    • B、Layer 3 TTL
    • C、Layer 3 source address
    • D、Layer 3 transport protocol
    • E、Layer 3 destination address

    正确答案:B

  • 第20题：

    Assuming that an IP packet is sent from a source address in VLAN1 to a destination address in VLAN2 through a layer-3 switch, which part of the packet will be changed?（）

    • A、Layer 2 TTL
    • B、Layer 3 TTL
    • C、Layer 3 source address
    • D、Layer 3 destination address

    正确答案:B

  • 第21题：

    At which layer of the OSI model does the Spanning Tree Protocol （STP） operate at？（）

    • A、Layer 5
    • B、Layer 4
    • C、Layer 3
    • D、Layer 2
    • E、Layer 1

    正确答案:D

  • 第22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23题：

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

    • A、Layer2
    • B、Layer3
    • C、Layer4
    • D、Layer5
    • E、Layer6
    • F、Layer7

    正确答案:C

  • 第24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

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