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The VLANs in switch R1 are being modified. Which of the foll

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The VLANs in switch R1 are being modified. Which of the following are updated in R1 every time a VLAN is modified？（）
A

Configuration revision number

B

Configuration revision flag field

C

Configuration revision reset switch

D

Configuration revision database

E

None of the other alternatives apply

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第1题：

Which two statements about the use of VLANs to segment a network are true?()

A. VLANs increase the size of collision domains.

B. VLANs allow logical grouping of users by function.

C. VLANs simplify switch administration.

D. VLANs enhance network security.


参考答案：B, D

第2题：

When a new trunk is configured on a 2950 switch, which VLANs by default are allowed over the trunk link()。

A.no VLANs

B.all VLANs

C.only VLANs 1 - 64

D.only the VLANs that are specified when creating the trunk


参考答案：B

第3题：

Which VTP mode should a Cisco switch be set to if this switch is to add or delete VLANs to a management domain?

A．Transparent

B．Server

C．Auto

D．Client

E．User


正确答案：B
解析：Explanation:VTPModes:IfyouintendtomakeaswitchpartofaVTPmanagementdomain,eachswitchmustbeconfiguredinoneofthreepossibleVTPmodes.TheVTPmodeassignedtoaswitchwilldeterminehowtheswitchinteractswithotherVTPswitchesinthemanagementdomain.ThethreeVTPmodesthatcanbeassignedtoaCiscoswitchincludeservermode,clientmode,andtransparentmode.Eachoftheserolesisoutlinedbelow:ServerMode:OnceVTPisconfiguredonaCiscoswitch,thedefaultmodeusedisServerMode.InanygivenVTPmanagementdomain,atleastoneswitchmustbeinServerMode.WheninServerMode,aswitchcanbeusedtoadd,delete,andmodifyVLANs,andthisinformationwillbepassedtoallotherswitchesintheVTPmanagementdomain.ClientMode:WhenaswitchisconfiguredtouseVTPClientMode,itissimplytherecipientofanyVLANsadded,deleted,ormodifiedbyaswitchinServerModewithinthesamemanagementdomain.AswitchinVTPclientmodecannotmakeanychangestoVLANinformation.TransparentMode:AswitchinVTPTransparentModewillpassVTPupdatesreceivedbyswitchesinServerModetootherswitchesintheVTPmanagementdomain,butwillnotactuallyprocessthecontentsofthesemessages.WhenindividualVLANsareadded,deleted,ormodifiedonaswitchrunningintransparentmode,thechangesarelocaltothatparticularswitchonly,andarenotpassedtootherswitchesintheVTPmanagementdomain.BasedontherolesofeachVTPmode,theuseofeachshouldbemoreorlessobvious.Forexample,ifyouhad15Ciscoswitchesonyournetwork,youcouldconfigureeachofthemtobeinthesameVTPmanagementdomain.AlthougheachcouldtheoreticallybeleftinthedefaultServerMode,itwouldprobablybeeasiertoleaveonlyoneswitchinthisconfiguration,andthenconfigureallremainingswitchesforVTPClientMode.Then,whenyouneedtoadd,delete,ormodifyaVLAN,thatchangecanbecarriedoutontheVTPServerModeswitchandpassedtoallClientModeswitchesautomatically.Incaseswhereyouneedaswitchtoactinarelativelystandalonemanner,ordonotwantittopropagateinformationaboutitsconfiguredVLANs,useTransparentMode.IncorrectAnswers:A.AswitchinVTPTransparentModewillpassVTPupdatesreceivedbyswitchesinServerModetootherswitchesintheVTPmanagementdomain,butwillnotactuallyprocessthecontentsofthesemessages.C,E.ThesearenotvalidVTPmodes.D.ClientmodemerelyacceptschangesmadebytheswitchthatisconnectedandinSERVERmode.

第4题：

Which two statements are true about voice VLANs？（）

  • A、Voice VLANs are only used when connecting an IP phone and a host to distinct switch ports
  • B、Access ports that are configured with voice VLANs will always trust the CoS that is received from IP phones
  • C、Access ports that are configured with voice VLANs may or may not override the CoS value that is received from an IP phone
  • D、Voice VLANs are configured using the switchport voice vlan vlan-ID interface configuration command
  • E、Voice VLANs provide a trunking interface between an IP phone and an access port on a switch to allow traffic from multiple devices that are connected to the port
  • F、Enabling Voice VLAN on a switch port will automatically configure the port to trust the incoming CoS markings

正确答案:C,D

第5题：

The VLANs in switch R1 are being modified. Which of the following are updated in R1 every time a VLAN is modified？（）

  • A、Configuration revision number
  • B、Configuration revision flag field
  • C、Configuration revision reset switch
  • D、Configuration revision database
  • E、None of the other alternatives apply

正确答案:A,D

第6题：

Refer to the exhibit. Which of these statements correctly describes the state of the switch once the boot process has been completed?()

A.As FastEthernet0/12 will be the last to come up, it will not be blocked by STP.

B.Remote access management of this switch will not be possible without configuration change.

C.More VLANs will need to be created for this switch.

D.The switch will need a different IOS code in order to support VLANs and STP.


参考答案：B

第7题：

Switch R1 is configured with VTP.  Which two VTP modes will make R1 capable of creating and  deleting VLANs on itself？ （）

  • A、 Client
  • B、 Server
  • C、 Transparent
  • D、 Pass-through
  • E、 No-negotiate

正确答案:B,C

第8题：

A company has a small network,consisting of a single switch and a single router.The switch has been configured with two vlans,and route-on-a-stick is being configured on the router for inter-vlan routing.A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?（）

A. one

B. three

C. two

D. zero


参考答案：C

第9题：

Switch R1 has been configured with Private VLANs.  With that type of PVLAN port should the default gateway be configured？（）

  • A、 Trunk
  • B、 Isolated
  • C、 Primary
  • D、 Community
  • E、 Promiscuous
  • F、 None of the other alternatives apply

正确答案:E

第10题：

Which three statements are typical characteristics of VLAN arrangements?（）

  • A、A new switch has no VLANs configured.
  • B、Connectivity between VLANs requires a Layer 3 device.
  • C、VLANs typically decrease the number of collision domains.
  • D、Each VLAN uses a separate address space.
  • E、A switch maintains a separate bridging table for each VLAN.
  • F、VLANs cannot span multiple switches.

正确答案:B,D,E

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