找考题网-背景图

单项选择题

SelectakeybenefitofDSL.（）

A.TCPpacketsizescanbeoptimizedbytheroutersothereisnoIPSecorAAL5padding.
B.ThelocalloopisadedicatedconnectionforasinglesubscribertotheDSLAM.
C.AccesstotheWANmediausesapoll/responsemechanismsonotwosubscriberstransmitatthesametime.
D.TherearenodistancerequirementsfromtheCentralOffice(CO).

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热门试题

单项选择题All－in－oneUTMsecuritygatewaysarestartingtodisplaceroutersinmanysmallbusinessnetworks.WhatdoesUTMstandfor？（）

A.UnitedThreatMonitor
B.UniversalThreatManager
C.UnifiedThreatManagement
D.UltimateThreatMonitoring

单项选择题WhichprotocoldoestheUCSFabricInterconnectsupportonportchanneluplinks?（）

A.LACP
B.PAgP
C.MCPC

单项选择题WhichstatementistruewhenICMPechoandecho－replyaredisabledonedgedevices？（）

A.Pingsareallowedonlytospecificdevices.
B.CDPinformationisnotexchanged.
C.Portscanscannolongerberun.
D.Somenetworkdiagnosticdataislost.
E.Wirelessdevicesneedtobephysicallyconnectedtotheedgedevice.
F.OSPFroutingneedsthecommandipospfnetworknon-broadcastenabled.

单项选择题WhichstatementcorrectlydescribesenablingBPDUguardonanaccessportthatisalsoenabledforPortFast？（）

A.Uponstartup，theporttransmits10BPDUs.IftheportreceivesaBPDU，PortFastandBPDUguardaredisabledonthatportanditassumesnormalSTPoperation.
B.TheaccessportignoresanyreceivedBPDU.
C.IftheportreceivesaBPDU，itisplacedintotheerror-disablestate.
D.BPDUguardisonlyconfiguredgloballyandtheBPDUfilterisrequiredforport-levelconfiguration.

单项选择题Inyourdatabase，youdiscoveredthatatempfileinalocallymanagedtemporarytablespacehasbeendeletedattheoperatingsystemlevel.Howwouldyourecoverthetablespace？（）

A.flashbackthedatabase
B.performpoint-in-timerecovery
C.performafulldatabaserecovery
D.dropandre-createthetablespace
E.useRecoveryManager（RMAN）torecoverthedatabase

单项选择题本地电子商务指的是().

A.在全世界范围内进行的电子交易活动,交易各方通过网络做生意
B.指利用本地区或者本城市的信息网络实现的电子商务活动
C.就是利用EDI网络进行电子交易
D.利用Internet网络进行电子交易

单项选择题Theaccountingmanagerwantsyoutocreateaformthatwhenqueriedwilldisplayacalculatedtotalofyear-to-dateactualexpendituresforthefundcodeentered.Thevalueneededtogeneratethissummarydataarestoredinmultipletables.HowwouldyoudefinethedatasourceforthisdatablockwithouthavingtheDBAcreateadatabaseobject?（）A.ChooseTools->DataBlockWizard,selectViewasthedatasourcetype,andbasetheblockonthecolumnsfromthebales.B.ChooseTools->DataBlockWizard,selectTableasthedatasourcetype,andbasetheblockonthecolumnsfromthetables.C.SelecttheDataBlocksnodeintheObjectNavigatorandclicktheCreatebutton.ChoosetobuildthedatablockmanuallyandaltertheQueryDataSourceColumnsandQueryDataSourceArgumentspropertiestoentertheSELECTstatement.D.SelecttheDataBlocksnodeintheObjectNavigatorandclicktheCreatebutton.Choosetobuildthedatablockmanually,altertheQueryDataSourceTypepropertyto‘Table‘,andentertheSELECTstatementintheQueryDataSourceNameproperty.E.ChooseTools->DataBlockWizard,selectStoredProcedureasthedatasourcetype,andbasetheblockonthecolumnsthetables.F.SelecttheDataBlocksnodeintheObjectNavigatorandclicktheCreatebutton.Choosetobuildthedatablockmanually.AltertheQueryDataSourceTypeto‘FROM‘clausequery‘,andentertheSELECTstatementintheQueryDataSourceNameproperty.

A.Thevalueneededtogeneratethissummarydataarestoredinmultipletables.HowwouldyoudefinethedatasourceforthisdatablockwithouthavingtheDBAcreateadatabaseobject?（）
A.ChooseTools->DataBlockWizard,selectViewasthedatasourcetype,andbasetheblockonthecolumnsfromthebales.
B.ChooseTools->DataBlockWizard,selectTableasthedatasourcetype,andbasetheblockonthecolumnsfromthetables.
C.SelecttheDataBlocksnodeintheObjectNavigatorandclicktheCreatebutton.ChoosetobuildthedatablockmanuallyandaltertheQueryDataSourceColumnsandQueryDataSourceArgumentspropertiestoentertheSELECTstatement.
D.SelecttheDataBlocksnodeintheObjectNavigatorandclicktheCreatebutton.Choosetobuildthedatablockmanually,altertheQueryDataSourceTypepropertyto‘Table‘,andentertheSELECTstatementintheQueryDataSourceNameproperty.
E.ChooseTools->DataBlockWizard,selectStoredProcedureasthedatasourcetype,andbasetheblockonthecolumnsthetables.
F.SelecttheDataBlocksnodeintheObjectNavigatorandclicktheCreatebutton.Choosetobuildthedatablockmanually.AltertheQueryDataSourceTypeto‘FROM‘clausequery‘,andentertheSELECTstatementintheQueryDataSourceNameproperty.

单项选择题WhichcomponentoftheSGAstoresparsedSQLstatementsisusedforprocesssharing?（）

A.Buffercache
B.Redologbuffer
C.PrivateSQLarea
D.Librarycache
E.Rowcache

单项选择题Managementhasdecidedthatthedatabasemustbeavailable24hoursaday，7daysaweek.Giventhisrequirement，whichtypeofbackupisrequired？（）

A.user-managedbackups.
B.partialdatabasebackups.
C.consistentdatabasebackups.
D.inconsistentdatabasebackups.

单项选择题OnswitchR1youissuethe udldenable globalcommand.Whatdoesthiscommandaccomplish？（）

A.Enablesallfiber-opticLANportsforUnidirectionalLINKDetection（UDLD）
B.EnablesallcoppermediaLANportsUnidirectionalLinkDetection（UDLD）
C.OverridesthedefaultUDLSsettingforallports
D.GloballyenablesallportsonthedeviceforUnidirectionalLinkDetection（UDLS）
E.Noneoftheotheralternativesapply