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exam:H35-211 _ V2.5-ENU
Title:
HCIP-AccessV2.5
https://www.passcert.com/H35-211_V2.5-ENU.html
1.Thetotaldownstreambandwidthofthe10GEPONPONIportisthesumofthedownstreambandwidth ofEPONandthedownstreambandwidthof10GEPON
A.True BFalse
Answer:A
2UndertheH248protocol,ifthesignalingIPandmediaIPareboth1011100/8andthevoicegateway is10111,whenconfiguringthevoIPservice,whichofthefollowingcommandiswrong?
AInvoipmode,usethecommandipaddressmedia101110010111toconfigurethemediaIP
BRuntheresetcoldstartcommandonthevoiceinterfacetomaketheinterfaceattributeconfiguration takeeffect
C.Usetheif-h248attributeicommandtoconfigureinterfaceattributesonthevoiceinterface
DInvoipmode,usethecommandipaddresssignaling101110010111toconfigurethesignalingIP
Answer:D
3.WhentheinvitationmessagesentbyuserAreachesuserBafterpassingthroughserversC,D,andE, theorderoftheserveraddressesrecordedintheVIAfieldinformationinthemessagereceivedbyuserB is?
AC->D->E
BE->C->D
CE->D->C
DC->E->D
Answer:C
4Theestablishment,maintenanceanddismantlingofasessioniscompletedthroughaseriesof messageinteractionsbetweentheSIPuserandtheserver,soeachinformationcontainedintheSIPtext isunique,andnosingleinformationwillappearAphenomenoninwhichavalueoccursmultipletimes ATrue B.False
Answer:B
5TheMax-ForwardsfieldcanbeusedintheSIPmessagetosolvetheloopandavoidendlessmessage forwarding. ATrue
B.False
Answer:A
6Regardingmulticast,whichofthefollowingdescriptionsisincorrect?
AAddLgmpuserunderBTVBydefault,amulticastusercanwatch8programs
BThereportsentbytheuseriscapturedintheboardlogicandsenttotheboardCPU
CConfiguregeneralparametersofLayer2grouppointerprotocols(IGMPProxy,GMPSnoop)globally basedonthedeviceForall
DWhenigmpmatchmodedisable,youneedtoconfigurethemulticastprogramgroup
Answer:D
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7ThecorrectmulticastMACaddresscorrespondingtothemulticastIPaddress227120132is?
A.01-00-5e-78-01-32
B01-00-5e-14-01-20
C01-00-5e-78-01-20
D01-00-5e-14-01-32
Answer:C
8UnderIGMPsnooping,twousersundertheOLTorderthesameprogram,andtheOLTsendstwojoin messagestothemulticastrouter
ATrue
B.False
Answer:B
9Multicasttechnologyeffectivelysolvestheproblemofsingle-pointtransmissionandmulti-point reception,andrealizesefficientdatatransmissionfrompointtomultipointintheIPnetwork
ATrue
B.False
Answer:A
10TheclassDmulticastaddressrangeisfrom224000to238255255255
ATrue
BFalse
Answer:B
11TheIGMPversionontheOLTisconfiguredasV2WhentheOLTreceivestheigmrv3joinmessage forwardedfromtheOnT,whatwillitdo?
ANormalforwarding
B.Sendaspecificgroupquerymessage
CSendageneralgroupquerymessage
D.Discarddirectly
Answer:D
12EnableIGMP-snoopingonthesecondlayerWhentheswitchportreceivestheIGMPjoinmessage,it willlistentothemessageandaddthecorrespondingporttothemulticastgroup.
ATrue
BFalse
Answer:A
13Whichofthefollowingoptionscanimprovetheserviceexperienceofmulticastuserswhenswitching channels(shorterswitchingtime)?
AWhenaddingamulticastprogram,disabletheprejoinfunction
BEnablethequickleavefunctionwhenaddingamulticastuser
CWhenaddingamulticastuser,enablethepreviewfunction
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D.Useagroupaddresswithasmallvalue
Answer:C
14Atotalof100multicastusersontheOLTarewatching20multicastprogramsAssumingthateach multicastprogramoccupiesabandwidthof2M,howmuchmulticasttrafficiscurrentlyavailableonthe uplinkportoftheOLT?
A200M B100M
C40M
D50M
Answer:C
15WhenthemainfiberisbrokenortheOLTcannotdetecttheexpectedopticalsignal(LOS)alarm,the possiblereasonis?(Multiplechoice)
AThereisarogueONUundertheport
B.Porttrunkfiberfailure
CAllpowerfailuresorfaultsundertheport
D.Portlaseristurnedoff
Answer:BCD
16UseOTDRtolocatethepositionofabnormalattenuationintheopticalpathAftertheOTDRis connectedtothedetectedline,whichofthefollowingparameterscanbeset?(Multiplechoices)
ASettingthemeasurementrange
BSetthewavelength
CSetupmode
DSetpulsewidth
Answer:ABCD
17.IntheFTTB/Cscenario,theONUisconnectedtothephoneasanAGdevice,andthereisnosound whentheSIPprotocolisoff-hookThepossiblereasonis?
A.Thereispacketlossintheupperlayernetworkoftheolt
BThestatusoftheMGinterfaceontheONUsideisabnormal
C.Voiceserverfailure
DTheroutebetweenONUandIMSisunreachable
Answer:B
18WhentheONTfailsorthehardwareisupgraded,theONTneedstobereplacedItisnecessaryto removetheONTserviceontheOLTfirst,thenremovetheONTterminal,andfinallyregisterand configurethenewONTservice
ATrue
BFalse
Answer:B
19AnIPTVuserreportedthattheTVcannotbewatched,andturnedonthedebuggingswitchonthe
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OLTside.Thedebuggingandprintinginformationisasfollows: Huawei(config)
Whichcanbedeterminedfromthequeryresults?
AThemulticastbandwidthofthepoNportisinsufficient
B.Theuserdoesnothavetherighttowatchtheprogram
CIGMPSakamotoMismatch
D.Userbandwidthverificationfailed
Answer:D
20ApoweraccessservicedeploysGPONTypeCdual-homingprotection,andthestateofthe protectiongroupandtheuplinkEthernetportisdeterminedontheOLTWhenthestateoftheEthernet portassociatedwiththeprotectiongroupontheOLTchangestodown,whichofthefollowingdescriptions isincorrect?
AThestateoftheworkportontheONUsidechangestostandby
BOLTcommunicateswithONUuplinkstatuschange
CAfterswitching,theserviceontheONUissenttotheOLTthroughtheprotectport,thatis,theservice messageistransmittedontheprotectport
DONUdetectslinkfailureandtriggersprotectionswitching
Answer:D
21WhendeployingGPONTypeCsingle-homingprotection,whichofthefollowingdescriptionsis correct?
AAbranchfiberbreaks,andthestatusoftheOLT'sworkportchangestostandbyY
B.ThetwoportsprotectedbytheOLTsidecannotsendandreceivedataatthesametime
CWhentheoltuplinkfails,protectionswitchingcanbetriggered
D.TheserviceconfigurationofONUaccessisexactlythesameastheconfigurationbeforeprotection
Answer:B
22ThedevicewillperiodicallysendandreceiveLMCPmessagestoavoidinformationlossIfno messagesarereceivedwithin()LACPmessageinteractionperiods,thesystemwillconsidertheportto befaulty
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Answer:A
23.TheprotectionscopeofGPONTypeBdual-homingprotectionincludes?(Multiplechoice)
AActiveandStandbyOLTs
BMainandbackupmainfiber
CTheactiveandstandbyPONportsoftheOLT
DPrimaryandbackupbranchfibers
Answer:ABC
24WhenTypeCdual-homingprotectionlinkageuplinkdetection,ifOLTorOLTuplinkfails,TypeC dual-homingprotectioncanbeswitchedtoanotherOLT
A.True
BFalse
Answer:A
25.WhichofthefollowingstatementsaboutdefendingagainstMACSpoofingisincorrect?
AMACAnti-MACSpoofing'featureandWMAC,SC,PPPOESMACfeaturesaremutuallyexclusiveat VLAlevel
BAftertheanti-MACSpoofingfunctionisenabled,thesystemwillautomaticallyrealizethedynamic bindingoftheACaddressandtheserviceflow
CAftertheAnti-MACSpoofingfunctionisenabled,forIPoEusersusingfixedIPs,usersneedtobe configuredstatically
DDisabletheAnti-MACSpoofingfunctionTheonlyactioninvolvedistodeletecertainentries,which doesnotaffectuserserviceapplications,buttheserviceforwardingplanewillbeinterrupted
Answer:D
26WhenitisdetectedthattheCPUoftheOLTmaincontrolboardcontinuestorise,whicharethe possiblereasons?(Multiplechoices)
A.Illegaluserlogin
BNetworkLoops
C.Cyberattacks
DRogueONU
Answer:BCD
27.InordertopreventnetworkmonitoringintheGPONsystem,themostcommonlyusedmethodis?
AInformationencryption
BUsingphysicaltransmission(notnetwork)
CWirelessnetworktransmission
DUseleasedlinetransmission
Answer:A
28WhenthePITPswitchisenabledgloballyorintheVLANservicetemplateoftheOLT,theservice virtualportisallowedtocarryupstreampackets,theVendortagisswitched,andtheuserupstream packetscarryVendortarfinformation,whichofthefollowingabouttheOLTprocessingstrategyofPITP
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messageiscorrect?
ATheOLTaddsalocalVendortaptotheupstreamPITPmessage
B.TheOLTdirectlyforwardstheuser-sidePITPmessagewithoutanyprocessing
CTheOLTleavestheVendortagcarriedintheuplinkPITPmessage,plusthelocalVendortag
DOLTdiscardsuplinkPITPpackets
Answer:C
29WhichofthefollowingstatementsaboutSSHconnectionisincorrect?
ASSHcanbeappliedtoremoteencryptedconnectionsandfiletransferencryption
BTheSSHprotocolcanencryptalltransmitteddata,effectivelypreventinginformationleakageduring remotemanagementQUESTIONNO:
C.Fromtheperspectiveoftheclient,SSHprovidestwolevelsofsecurityverification
DTheSSHprotocolworksatthenetworklayer
Answer:D
30.WhichofthefollowingisnotaQOSservicemodel?
ADiffserv
B.Intserv CFIFOservice
DBestEffort
Answer:C
31Whendeployinghome-customerservicesinthePONsystem,whichofthefollowingservice configurationshasthehighestpriority?
AVOIP BGAME CINTERNET
DIPTV
Answer:A
32.TheOLTcandirectlycopythepriorityoftheusermessageasthepriorityofforwardingthemessage upwards,andalsosupportsdirectlocalconfiguration
A.True BFalse
Answer:A
33TheOLTcanperformtrafficshapingthroughtheservicevirtualport(service-port)
ATrue BFalse
Answer:A