HCDP英文版单选试题.docx

HCDP英文版单选试题.docx

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HCDP英文版单选试题

1.whatisthemaximumbitsofaclasscaddresscanbeusedforsubnet?

A6

B8

C12

D14

A

2.whatisthefunctionofthepeerignorecommand?

AdeletesaBGPpeer

Bretainsallconfigurationsofthepeer,andmaintainstheBGPpeerrelationshipwiththepeer,butdoesnotreceivetheroutessentfromthepeer.

Cretainsallconfigurationsofthepeer,andmaintainstheBGPpeerrelationshipwiththepeer,butdoesnotadvertiseroutestothepeer.

Dretainsallconfigurationsofthepeer,interruptstheBGPpeerrelationshipwiththepeer,andclearsallrelatedroutinginformation.

D

3.anotificationmessagewithErrorcode2indicatesanerroropenmessage.whichofthefollowingerrorsub-codescanbecontainedinthisopenmessage?

A1:

indicatesthattheversionnumberisnotsupported.

B2:

indicatesthattheASofthepeerisincorrect

C3:

indicatesthattheBGPidentifierisincorrect

D4:

indicatesthattheoptionalparametersfiledisnotsupported

ABCD

4.whichfollowingBGPattributecanusedtodefineasetofprefixeswiththesamecharacteristics?

AOrigin

BNexthop

CCommunity

DMED

C

5.whichofthefollowingcharacterstringsmatchestheregularexpression100$?

A3100

B100

C1008

D100200

B

6.whichofthefollowingas-pathattributesmatchthisas-path-filter?

__ipas-path-filter1permit100$|400$?

A100

B3100

C12341400

D300400

ABCD

7.____INIPv4,whichofthefollowingistheSSMaddressrangeallocatedbytheIANA?

A232.0.0.0/24

B225.0.0.0/8

C232.0.0.0/8

D239.0.0.0/8

D

8._____whichofthefollowingconfigurationscanbeperformedtoimplementfastfailuredetectiononanetwork?

AReducetheholdtimeofJoin/Prunemessages

BReducetheintervalforaninterfacetosendHellomessages.

CSetupaPIMBFDsessionbetweennetworksegmentneighbors.

DReducetheintervalforsendingJoin/Prunemessages.

BC

9.whichofthefollowingtechnologiescanreducethescaleofbroadcastdomain?

AVLAN

BTRUNK

CRARP

DSTP

A

10.Whichstatementaboutthetrunkinterfaceistrue?

AAtrunkinterfaceisalwaysconnectedtohosts.

BMultipleVLANIDscanbesetonatrunkinterface.TheVLANIDscanbethesameasordifferentfromthePVID.

CThetrunkinterfacecannothaveaPVID.

DIFthetrunkinterfacereceivesapacketwithaVLANnotintheallowedVLANlist,thetrunkinterfacebroadcastthepacketintheVLAN.

B

11.WhichofthefollowingarefactorsthataffectQOS?

ABandwidth

BDelay

CJitter

DLossofpacket

ABCD

12.IPnetworkcanprovidevariouspacketforwordingservice,theservicedemandsthatuserscareduringpacketforwardinginclude.

AThroughput

BDelay

CJitter

DLossofpacket

ABCD

13.IPOosmodelsinclude:

ABest-Effort

BIntegratedService

CDifferentiatedService

DFIFOService

ABC

14.Qoscanprovidedifferentqualityofserviceaccordingtodifferentdemands,whichofthefollowingarefunctionsofQos?

AProvidingprivatebandwidthforusers

BReducinglossofpacket

CCongestionmanagementandavoidance

DSpecifyingpriorityofpackets

ABCD

15.WhatisthelegalvirtualMACaddressinVRRP?

A01-01-5E-00-01-01

B01-00-5E-00-01-00

C00-00-5E-00-01-01

D01-01-5E-00-01-01

C

16.WhichofthefollowingstatementsarecorrectregardingMasterinVRRP?

ATherouterwithhighestprioritywillbecomeMaster.

BTherouterwithsmallestprioritywillbecomeSlave.

CTherouterwithhighestprioritymaynotalwaysbeMaster.

DTherouterwithsmallestprioritymaynotalwaysbeSlave.

CD

17.WhichofthefollowingstatementsarecorrectregardingpriorityinVRRP?

ATheipaddressowneralwaysuses255asitspriorityregardlessitsconfigpriority.

BTheipaddressowneralwaysuses0asitspriorityregardlessitsconfigpriority.

CWecanconfigurethepriorityas0tomaketherouterneverattendtheMasterelection.

DIfaVRRProuterchangesfromMastertoSlave,itwillsendoutaVRRPmessagewithpriority0inthenetwork.

A

18.WhichofthefollowingstatementsarecorrectregardingVRRP?

AOnlyMastercanprocessthedatapacketssendingtovirtualrouter.

BOnlySlavecanprocessthedatapacketssendingtovirtualrouter.

CBothMasterandSlavecanprocessthedatapacketssendingtothesamevirtualroutertorealizeloadbalance.

DBydefault,onlyMastercanprocessthedatapacketssendingtovirtualrouter:

butwecandosomeconfigurationtomaketheSlaveProcessthedatapacketssendingtovirtualrouter.

A

19.WhichofthefollowingstatementsarecorrectregardingthefunctionofVRRP?

AVRRPcanimprovethereliabilityofdefaultgateway.

BVRRPincreasetheconvergencespeedofroutingprotocol.

CVRRPismainlyusedfortrafficbalance.

DVRRPcanprovideonedefaultgatewayfordiffenrentnetworksegments,itsimplifiesthegatewayconfigurationforPC.

A

20.WhichofthefollowingstatementsarecorrectregardingdefaultgatewayofPCinthenetworkrunningVRRP?

AConfigureonlyonegatewayforthePCwhichistheIPaddressofMaster.

BConfigureonlyonegatewayforthePCwhichistheIPaddressofvirtualrouter.

CConfiguretwogatewaysforthePCwhicharetheIPaddressesofMasterandSlave.

DConfigurethreegatewaysforthePCwhicharetheIPaddressesofMaster,Slaveandvirtualrouter.

B

21.WhichofthefollowingauthenticationmodesdoesVRRPuse?

ANoauthentication

BSimpletextpassword

CMD5

DCHAP

ABC

22.WhichofthefollowingstatementsarecorrectregardingMACaddressofVRRPpacket?

AThedestinationMACisbroadcastMACaddress

BThedestinationMACismulticastMACaddress

CThesourceaddressisvirtualMACaddress.

DThesourceaddressisphysicalMACaddressofMaster.

BC

23.RTAconnectedtoaLANbye0/0whoseIPaddressis10.1.1.251andnetworkmaskis255.255.255.0.NowcreateavirtualrouterwithID1andvirtualIPaddress10.1.1.254onRTA.whichofthefollowingcommandsarecorrect?

A[RTA-ethernet0/0]vrrpvrid1virtual-ip10.1.1.254

B[RTA]vrrpvrid1virtual-ip10.1.1.254

C[RTA-ethernet0/0]vrrpvrid1virtual-ip10.1.1.254mask255.255.255.0

D[RTA]vrrpvrid1virtual-ip10.1.1.254mask255.255.255.0

A

24.WhichofthefollowingstatementsraecorrectregardingVRRPadvertisementmessage?

AVRRPhastwokindsofadvertisementmessage,oneissentbymaster,theotherissentbyslave.

BVRRPhastwokindsofadvertisementmessagewhichissentbymaster

CVRRPhastwokindsofadvertisementmessagewhichissentbyslave

DVRRPhastwokindsofadvertisementmessage,oneisusedformasterelection,theotheroneisusedinstablenetworkaftermasterelection.

B

25.Intwhichofthefollowingmodescantheeudemonbeworking?

ARoutingmode

BTransparentmode

CCompositemode

DTransfermode

ABC

26.Whatarethetypesoffirewallsdevelopedsofar?

Apacketfilteringfirewall

Bproxyfirewall

CAnti-virusfirewall

DStatefulfirewall

ABD

27.whichofthefollowingfirewallsisthemostpopular?

Apacketfilteringfirewall

BStatefulfirewall

Cproxyfirewall

DAnti-virusfirewall

B

28.Howmanyuser-definedsecurityzonesatmostareconfiguredonanEudemon?

A3

B4

C5

D6

A

29.TheTCPSYNfloodattackusuallyoccursduringtheTCPhandshakeprocess.HowmanyhandshakesarerequiredtosetupaTCPconnection?

A1

B2

C3

D4

C

30.HowmanydefaultzonesdoestheEudemonsupportingmulti-instancehave?

ATwo

BThree

CFour

DFive

C

31.WhichofthefollowingisthepriorityvalueoftheDMZontheEudemon?

A10

B50

C75

D85

B

32.WhatisthemaximumnumberofsecurityzonessupportedbytheEudemon?

A256

B128

C32

D16

16

33.WhichofthefollowingstatementsaboutthesecuritypoliciesfortheEudemonaretrue?

ABydefault,auserintheLocalzonecanaccessotherzones.

BBydefault,auserintheTrustzonecanaccesstheDMZ.

CBydefault,auserintheUntrustzonecannotaccesstheTrustzone.

DBydefault,auserinazoneofthefirewallcannotaccessanyotherzoneofthefirewall.

CD

34.WhichofthefollowingstatementsaboutthezoneprioritiesoftheEudemonaretrue?

AThepriorityoftheLocalzoneis100

BThepriorityoftheTrustzoneis80

CThepriorityoftheUntrustzoneis5.

DThepriorityoftheDMZis50.

ACD

35.Whichofthefollowingstatementsaboutthefirewalltechnologyaretrue?

AThenetworkgatewayoftheapplicationlayerchecksapplication-layerdatacarriedinpacketspassingthroughthegateway.

BThenetworkgatewayforsessionstatusdetectioncheckssessioninformationcarriedinpacketsonlyatthesessionlayer.

CDuringpacketfiltering,thesessionstatusischeckedandthewholedatastreamisanalyzed.

DAddressproxyreplacesIPaddressesandportnumbersofhostswithinthenetworkwiththeIPaddressandportnumberoftheproxydeviceorrouter

ABD

36.WhichofthefollowingdatatrafficisincomingdatatrafficontheEudemon?

ADatatrafficfromaTrustzonetoademilitarizedzone（DMZ）

BDatatrafficfromanUntrustzonetoaDMZ

CDatatrafficfromaLocalzonetoaTrustzone

DDatatrafficfromanUntrustzonetoaLocalzone

BD

37.WhichofthefollowingattacksarepreventedafteranIPaddressandMACaddressareboundontheEudemon?

AIPaddressspoofing

BMACaddressspoofing

CDosattack

DDDosattack

AB

38.WhichofthefollowingsolutionseffectivelydefendagainstARPattacks?

ABindingaMACaddressandanIPaddress

BEnablingtheARPattackprotectionfunctiononaHuaweiswitchingdevice

CAddingnetworksegmentstodifferentVLANsonaswitch

DEnablingIPpacketfiltering

ABC

39.WhichofthefollowingindicatorsareperformanceindicatorsoftheEudemon?

AThroughputoflarge-sizedorsmall-sizedpackets.

BNumberofnewconnectionsandconcurrentconnectionspersecond

CVPNperf