HCDP英文版最新单选试题Word格式.docx

HCDP英文版最新单选试题Word格式.docx

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4.whichofthefollowingcharacterstringsmatchestheregularexpression100$?

A3100

B100

C1008

D100200

B

5.____INIPv4,whichofthefollowingistheSSMaddressrangeallocatedbytheIANA?

A232.0.0.0/24

B225.0.0.0/8

C232.0.0.0/8

D239.0.0.0/8

6.whichofthefollowingtechnologiescanreducethescaleofbroadcastdomain?

AVLAN

BTRUNK

CRARP

DSTP

7.Whichstatementaboutthetrunkinterfaceistrue?

AAtrunkinterfaceisalwaysconnectedtohosts.

BMultipleVLANIDscanbesetonatrunkinterface.TheVLANIDscanbethesameasordifferentfromthePVID.

CThetrunkinterfacecannothaveaPVID.

DIFthetrunkinterfacereceivesapacketwithaVLANnotintheallowedVLANlist,thetrunkinterfacebroadcastthepacketintheVLAN.

8.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

9.WhichofthefollowingstatementsarecorrectregardingpriorityinVRRP?

ATheipaddressowneralwaysuses255asitspriorityregardlessitsconfigpriority.

BTheipaddressowneralwaysuses0asitspriorityregardlessitsconfigpriority.

CWecanconfigurethepriorityas0tomaketherouterneverattendtheMasterelection.

DIfaVRRProuterchangesfromMastertoSlave,itwillsendoutaVRRPmessagewithpriority0inthenetwork.

10.WhichofthefollowingstatementsarecorrectregardingVRRP?

AOnlyMastercanprocessthedatapacketssendingtovirtualrouter.

BOnlySlavecanprocessthedatapacketssendingtovirtualrouter.

CBothMasterandSlavecanprocessthedatapacketssendingtothesamevirtualroutertorealizeloadbalance.

DBydefault,onlyMastercanprocessthedatapacketssendingtovirtualrouter:

butwecandosomeconfigurationtomaketheSlaveProcessthedatapacketssendingtovirtualrouter.

11.WhichofthefollowingstatementsarecorrectregardingthefunctionofVRRP?

AVRRPcanimprovethereliabilityofdefaultgateway.

BVRRPincreasetheconvergencespeedofroutingprotocol.

CVRRPismainlyusedfortrafficbalance.

DVRRPcanprovideonedefaultgatewayfordiffenrentnetworksegments,itsimplifiesthegatewayconfigurationforPC.

12.WhichofthefollowingstatementsarecorrectregardingdefaultgatewayofPCinthenetworkrunningVRRP?

AConfigureonlyonegatewayforthePCwhichistheIPaddressofMaster.

BConfigureonlyonegatewayforthePCwhichistheIPaddressofvirtualrouter.

CConfiguretwogatewaysforthePCwhicharetheIPaddressesofMasterandSlave.

DConfigurethreegatewaysforthePCwhicharetheIPaddressesofMaster,Slaveandvirtualrouter.

13.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

14.WhichofthefollowingstatementsraecorrectregardingVRRPadvertisementmessage?

AVRRPhastwokindsofadvertisementmessage,oneissentbymaster,theotherissentbyslave.

BVRRPhastwokindsofadvertisementmessagewhichissentbymaster

CVRRPhastwokindsofadvertisementmessagewhichissentbyslave

DVRRPhastwokindsofadvertisementmessage,oneisusedformasterelection,theotheroneisusedinstablenetworkaftermasterelection.

15.whichofthefollowingfirewallsisthemostpopular?

Apacketfilteringfirewall

BStatefulfirewall

Cproxyfirewall

DAnti-virusfirewall

16.Howmanyuser-definedsecurityzonesatmostareconfiguredonanEudemon?

A3

B4

C5

D6

17.TheTCPSYNfloodattackusuallyoccursduringtheTCPhandshakeprocess.HowmanyhandshakesarerequiredtosetupaTCPconnection?

A1

B2

C3

D4

18.HowmanydefaultzonesdoestheEudemonsupportingmulti-instancehave?

ATwo

BThree

CFour

DFive

19.WhichofthefollowingisthepriorityvalueoftheDMZontheEudemon?

A10

B50

C75

D85

20.WhatisthemaximumnumberofsecurityzonessupportedbytheEudemon?

A256

B128

C32

D16

21.WhichofthefollowingindicatorsareperformanceindicatorsoftheEudemon?

AThroughputoflarge-sizedorsmall-sizedpackets.

BNumberofnewconnectionsandconcurrentconnectionspersecond

CVPNperformance

DMTUcheck

22.Inthescenariowherepacketsaresentandreceivedalongdifferentpaths,whichofthefollowingfunctionsneedstobedisabledonthefirewall?

AStatusdetection

BAttackdefense

CPacketfiltering

DStatusbackup

23.Assumethatthetraceroutetestisusedtodetectthepacketforwardingpathandtracertpacketshavepassedthroughthefirewall.whichofthefollowingattackprotectionfunctionsneedstobedisabledtonormallydisplaythetracertresult?

AICMP-redirect

BICMP-unreachable

CTracert

DSmurf

24.WhatistherecommendedminimumdelayforHRPpreemptionontheEudemon?

A120S

B60S

C10S

D5S

25.WhichofthefollowingcommandsisusedtodisplaythedetailedinformationabouttheEudemon?

Adisplayfirewallstatisticsystem

Bdisplayfirewallsessiontablerawboth-direction

Cdisplayfirewallsessiontableverbose

Ddisplayfirewallsessiontabledetail

26.Toprovideservicesofdifferentqualities,youcanclassifyservicesbasedonsuchpacketinformationasthepacketpriority,sourceIPaddress,destinationIPaddress,andportnumber.WhichofthefollowingQostechnologycanbeusedtoserviceclassification?

ATrafficpolicing

BTrafficshaping

CComplextrafficclassification

DCongestionmanagement

27.Qosinbest-effortservicemodeuseswhichofthefollowingqueueschedulingtechnology

AFIFO

BWFQ

CPQ

DRR

28.WhichofthefollowingstatementaboutQosindiffservmodeisfalse?

ATheparameterfieldintheIPpacketheaderinformsdevicesonthenetworkoftheQosrequirementsoftheapplication.

BEverydeviceonthepackettransmissionpathscanlearntheservicerequesttypesbyanalyzingtheIPpacketheader.

CBeforesendingPackets,theapplicationprogramneedstoconfirmthatthenetworkhasreservedresourcesforpackettransmission.

DDiffServisaQossolutionbasedonpackets.

29.Whichofthefollowingstatementaboutpacketmarkingisfalse?

AComparedwithtrafficpolicing,trafficshapingisadvancedintermsofcachingbursttraffic.

Bwithtrafficshaping,packetscanbetransmittedatanevenrate.

CCachingpacketsinthequeueincreasesthepacketdelayincaseofcongestion.

DIncaseofcongestion,trafficshapingcausesthepacketlossratiotoincrease.

30.Whichofthefollowinginformationinapacketcanbemarkedorre-marked?

AIPDSCP,IPprecedence,and802.1Pinformation

BIPsourceanddestinationaddresses

CMACaddress

DAnyinformationinthepacket

31.Simpletrafficclassificationcanbeperformedbasedonwhichofthefollowinginformationinvlanpackets?

ADSCP

BIPprecedence

CMPLXEXP

D802.1p

32.BasedontheDSCPfield（first6bitsoftheTosfield）,pakcetscanbeclassifiedintohowmanytypes?

A4

B8

C16

D64

33.Inadditiontotrafficratelimit,theCARcanmarkpacketswithcolors.Ifonetokenbucketone-rateisusedintrafficpolicingandthenumberoftokensisinsufficient,packetsaremarkedwithwhichofthefollowingcolor?

ARed

BGress

CYellow

DBlue

34.Intrafficpolicingusingtwotokenbucketstwo-rate,whentheCIRissetto1Mbit/sandthePIRissetto2Mbit/s,whatisthemaximumtransmissionrateforthetrafficingreen?

A1Mbit/s

B2Mbit/s

C3Mbit/s

D4Mbit/s

35.Assumethattherearefourflowsa.b.c,andd,thetransmissionrateofeachflowis50Mbit/s,andthetotalbandwidthoftheinterfaceforflowtransmissionis100Mbit/s,Inthecaseofcongestion,WFQisavailableforflowsa,b,c,andd,withtheweightproportionbeing1:

2:

3:

4,whichofthefollowingstatementabouttheinterfacebandwidthallocatedtoeachflowistrue?

AInterfacebandwidthsallocatedtoflowsa,b,canddare10Mbit/s,20Mbit/s,30Mbit/s,and40Mbit/srespectively.

BInterfacebandwidthsallocatedtoflowsa,b,canddare50Mbit/s,50Mbit/s,0Mbit/s,and0Mbit/srespectively.

CInterfacebandwidthsallocatedtoflowsa,b,canddare40Mbit/s,30Mbit/s,20Mbit/s,and10Mbit/srespectively.

DFlowsa,b,canddarediscarded.

36.Assumethatcongestionoccursontheoutboundinterface,packetAiscachedinthePQ,andpacketBiscachedintheWFQ,whichofthefollowingstatementaboutpacketschedulingistrue?

APacketAisscheduledfirst.

BPacketBisscheduledfirst.

CPacketsAandBarescheduledatthesametime.

DPacketsAandBarediscarded.

37.AssumethatthefollowingWREDpolciesareusedinQoS:

ThelengthofthequeueforsavingDSCPpacketswiththeprioritybeingAF21ranges