考题
Whichstatementsregardingtheserverparameterfile(SPFILE)aretrue()
A.AnSPFILEisabinaryfile.B.AnSPFILEcannotresideonaclient.C.AnSPFILEcannotcontainstaticparameters.D.AnSPFILEcanstorechangespersistentlyacrossinstancerestarts.E.AnSPFILEcanbereadbythedatabaseserver,butitisnotwrittentobytheserver.F.AnSPFILEmustbecreatedmanually,beforecreatingadatabase,evenifyouusetheDatabaseConfigurationAssistant(DBCA)tocreatethedatabase
考题
WhichtwostatementsaboutAutomaticStorageManagement(ASM)aretrue?()
A.ASMprovidesmirroringonfilebyfilebasis.B.ASMprovidesautomaticloadbalancingacrossallASMdisks.C.ASMsupportstheOracledatabaseandoperatingsystemfiles.D.ASMcanbeusedtostoretracefiles,alertlogfiles,andtheserverparameterfile(SPFILE).
考题
Whichthreestatementsregardingtheserverparameterfile(SPFILE)aretrue()
A.AnSPFILEisabinaryfile.B.AnSPFILEcannotresideonaclient.C.AnSPFILEcannotcontainstaticparameters.D.AnSPFILEcanstorechangespersistentlyacrossinstancerestarts.E.AnSPFILEcanbereadbythedatabaseserver,butitisnotwrittentobytheserver.F.AnSPFILEmustbecreatedmanually,beforecreatingadatabase,evenifyouusetheDatabaseConfigurationAssistant(DBCA)tocreatethedatabase.
考题
WhichtwostatementsregardingcompressedbackupsinRecoveryManager(RMAN)aretrue?()
A.Backupcompressionisdisabledbydefault.B.Backupcompressioncanbeusedwithbothbackupsetsandimagecopies.C.BackupcompressioncannotbeenabledusingtheCONFIGUREcommand.D.BackupcompressionworksonlyiftheCOMPATIBILITYparameterissetto9.0.0.0orhigher.E.Backupcompressionappliestoonlybackupsets.F.Backupcompressionappliestoonlyimagecopies.
考题
WhichthreestatementsaboutLabel-SwitchedPaths(LSPs)aretrue?()
A.LSPsarebidirectional.B.LSPsareunidirectional.C.LSPscanbesignaledbyCAC.D.LSPscanbeconfiguredexplicitly.E.LSPscanbeconfigureddynamically.
考题
下列哪些是100G关键技术()
A.PM-QPSK编码B.接收机采用相干接收C.FEC采用软判决FEC(SD-FEC)D.相干接收采用高速电信号处理(DSP)技术
考题
WhichtwostatementsregardingtheWirelessLANSolutionEngine(WLSE)aretrue?()
A.Tosupportfaultandpolicyreporting,theWLSErequiresaWirelessControlSystem(WCS).B.WhenWLSEdetectsanAPfailure,itautomaticallyincreasesthepowerandcellcoverageofnearbyAPs.C.WLSErequiresthe2700locationappliancetoofferlocationtracking.D.WLSEcanlocaterogueAPsandautomaticallyshutthemdown.E.WLSEconfigurationisdoneusingthecommandlineinterface(CLI)oraWEBbasedtemplate.
考题
WhichtwostatementsabouttheWLANSolutionEngine(WLSE)aretrue?()
A.WLSEsupportscentralizedconfiguration.B.WLSEsupportsdistributedconfiguration.C.WLSEcanpickupstatisticsonadeviceevenifthedeviceisnotproperlyconfigured.D.WLSEcanbeusedtoupgradethefirmwareonAPsandbridges.E.WLSEmonitorsdevicefaultandperformanceconditionsbutcannotreportanypolicymisconfigurations
考题
WhichthreestatementsaboutMPLStrafficengineering(MPLSTE)aretrue?()
A.MPLSTEsupportsadmissioncontrolB.MPLSTEtunneltrafficisalinkattributetocomputetheTEtunnelpathC.MPLSTEusesBGPextensiontoadvertiselinkattributesD.MPLSTEprovidesprotectioncapabilityE.MPLSTEusesRSVPtoestablishLSP
考题
Whichtwostatementsaboutthewirelesscontrolsystem(WCS)aretrue?()
A.theCiscoWCSisdesignedtosupport1500CiscoWLANcontrollersandupto50APsB.theCiscoWCSrunsonadedicatednetworkdevicesuchastheCisco2700networkapplianceC.theCiscoWCSrunsonvariouswindowsandLinuxplatformsD.theCiscoWCSscreendisplaysfourmainmenusheettabconsistingofMonitor,Configure,Security,andAlamE.theCiscoWCSusestheSNMPprotocoltocommunicatewiththecontrollers
考题
WhichfourstatementsaboutanIPservicelevelagreement(SLA)aretrue?()
A.SLAresponderknowstypeofoperation,theportused,andduration.B.SLAresponderinsertsinandouttimestampsinthepacketpayload.C.SLAsenderandresponderusetheIPSLAControlProtocoltocommunicatewitheachotherbeforeD.SLAsenderandrespondercommunicationcanbeencrypted.E.SLAsenderandrespondercommunicationcanbeauthenticatedwithMD5.
考题
WhichtwostatementsaboutNTPversion4aretrue?()
A.ItsupportsfastsynchronizationatstartingandbeforenetworkfailuresB.ItsupportsautomaticserverdiscoveryC.Itusesafixed-pointarithmetionD.ItsupportsthenanokernelkernelimplementationE.ItdoesnotsupportPublic-KeyCryptography
考题
WhichtwostatementsaboutRPFchecksinMulticastSourceDiscoveryProtocol(MSDP)aretrue?()
A.Itpreventsmessagelooping,SessionAdvertisement(SA)messagesmustbeRPFcheckedB.RPFcheckshouldbedoneagainsttheroutetothesourceSofthecorrespondingPIM-SMdomainC.RPFcheckshouldbedoneagainsttheroutetotheRendez-vousPointofthecorrespondingPIM-SM domain,whichoriginatedtheSAD.RPFcheckingSessionAdvertisement(SA)messageswillcausemessagelooping
考题
在MPLS中,FEC的角色是什么?()
A.FEC决定IP数据包在LSP中如何转发B.FEC决定如何建立LSP路径C.FEC决定LSP如何与组对应D.FEC决定标签如何存储
考题
关于FEC的说法,正确的有()。A、支持FEC和不支持FEC功能的设备不能直接互通B、FEC可分为带外FEC和带内FECC、AFEC与FEC也不能互通D、AFEC比FEC更加降低系统对OSNR的要求
考题
FEC技术可以等效提高信噪比,FEC可以提高()dB,EFEC可以提高()dB,AFEC可以提高()dB
考题
在MPLS中,FEC的角色是什么?()A、FEC决定IP数据包在LSP中如何转发B、FEC决定如何建立LSP路径C、FEC决定LSP如何与组对应D、FEC决定标签如何存储
考题
What is the role of Forwarding Equivalence Class (FEC) in MPLS?()A、FEC determines how IP packets are forwarded in MPLS LSP.B、FEC determines how to establish an LSP path.C、FEC determines how a group of IP packets are mapped to an LSP.D、FEC determines how MPLS labels are stacked in LSP.E、None of above.
考题
Which three are valid IPv6 interface addresses?()A、FEC0:0:9000:0:9376:0:ABCD://EF12/128B、FEC0:0:0:2000:10FF://9472:94FA:3490/128C、FEC0:0:9500:0:59AB:BC12:94583:99CF/128D、FEC0:FEC0:0:FEC0:1234:4321:7890:978/128E、FEC0:0:9500:0:59AB:EEC12:ABCD://99CF/128
考题
Which two statements about forwarding equivalence class (FEC) are true?()A、FEC might correspond to a destination IP subnet, but it might also correspond to any traffic class that the edge LSR considers significant.B、FEC is a group of IP packets that is forwarded over a different path, but with the same forwarding treatment.C、FEC is a group of IP packets that is forwarded over the same path, and with the same forwarding treatment.D、FEC is a group of IP packets that is forwarded over a different path, but with the different forwarding treatment.E、FEC is a group of IP packets that is forwarded over the same path, but with a different forwarding treatment
考题
某LSR运行在DU的标签分配模式、有序的标签控制模式下,下列说法正确的是()。A、该LSR收到了上游LSR针对某FEC的标签分配请求,且该LSR是该FEC的最下游设备时才可以为该FEC分配标签B、该LSR收到了下游设备针对某FEC的label mapping消息时就可以为该FEC分配标签,无需等待上游的标签分配请求C、该LSR是某FEC的最下游设备就可以为该FEC分配标签,无需等待上游的标签分配请求D、该LSR只要收到上游设备针对某FEC的标签分配请求就可以为该FEC分配标签
考题
编码增益是衡量前向纠错编码(FEC)纠错能力的参数。关于编码增益,以下说法错误的是()。A、在保持误码率恒定条件下,采用纠错编码所节省的信噪比称为编码增益;B、编码增益越大,说明FEC纠错能力越强;C、带内FEC的编码增益比带外FEC的编码增益大;D、AFEC的编码增益比FEC的编码增益大。
考题
OTU10G板具有前向纠错FEC功能,若用在发送端应为()模式A、FEC编码B、FEC解码C、FEC编解码
考题
OTU10G单板具有前向纠错(FEC)功能,若用在发送端应设置为()模式。A、FEC编码B、FEC解码C、FEC编解码D、FEC关闭
考题
下列哪些是100G关键技术()A、PM-QPSK编码B、接收机采用相干接收C、FEC采用软判决FEC(SD-FEC)D、相干接收采用高速电信号处理(DSP)技术