思科认证考试

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
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相似问题和答案

第1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


参考答案：B

第2题：

AtwhichlayeroftheOSImodeldoestheSpanningTreeProtocol(STP)operateat?()

A.Layer5

B.Layer4

C.Layer3

D.Layer2

E.Layer1


参考答案：D

第3题：

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 n

A． topology

B．protocol

C．service

D．peer


正确答案：B

第4题：

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

A.Layer2mode

B.Layer2Edgemode

C.Layer3mode

D.Layer3In-Bandmode


参考答案：A

第5题：

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

A.Layer2Edgemode

B.Layer2Centralmode

C.Layer2In-Bandmode

D.Layer3mode


参考答案：D

第6题：

WhichdeployedVoWLANclientsecurityoptionisrecommendedbyCisco?()

A.Layer3withLayer3SecuritysettoNoneandWebPolicysettoAuthentication

B.Layer3withLayer3SecuritysettoNoneandWebPolicysettoVPNPass-Through

C.Layer3withLayer3SecuritysettoVPNPass-Through

D.Layer2withLayer2Securitysetto802.1X


参考答案：D

第7题：

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

A.Layer2mode

B.Layer3Edgemode

C.Layer3Centralmode

D.Layer3In-Bandmode


参考答案：A

第8题：

Acknowledgements, sequencing, and flow control are functions that are handled by which layer of the OSI model?

A. Layer 5

B. Layer 4

C. Layer 7

D. Layer 6

E. Layer 3

F. Layer 2

G. Layer 1


正确答案：B
B

第9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10题：

WhichroamingoptionwillkeepthemonthesameIPsubnetwhenclienttrafficisbeingbridged throughLANinterfacesontwoWLCs?()

A.Layer1intercontrollerroaming

B.Layer2intercontrollerroaming

C.Layer3intercontrollerroaming

D.Layer4intercontrollerroaming


参考答案：B

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