某大桥全长850m，两岸水准连测的测量精度应达到（）。A. 一等B. 二等C. 三等D. 四等

YouhaveanExchangeorganization.AllserversintheorganizationhaveExchangeServer2010ServicePack1（SP1）installed.TheorganizationcontainsfiveHubTransportservers.AlloftheHubTransportserversarelistedassourceserversforaSendconnectortotheInternet.

YouneedtopreventaHubTransportservernamedHublfromsendingandreceivinge-mailmessagesfromtheInternet.Thesolutionmustmeetthefollowingrequirements：

（1）EnsurethatMailboxserverscandelivere-mailmessagestoHub1.

（2）EnsurethatallotherHubTransportserverscandelivere-mailmessagestotheInternet.

WhatshouldyoudoonHub1？（）

A.Runthesfc.execommand-linetool.

B.Runtheconvert.execommand-linetool.

C.FromDiskManagement,formatthevolumeandselecttheNTFSfilesystem.

D.FromDiskManagement,upgradethediskthatcontainsthevolumetoadynamicdisk.

A.运行程序和功能的磁盘清理

B.运行系统还原和卷影副本的磁盘清理

C.从系统保护还原设置，选择“关闭系统还原”

D.从系统保护还原设置，选择“只还原文件的以前版本”

A.RuntheTest-Mailflowcmdlet.

B.RuntheTest-OutlookConnectivitycmdlet.

C.IncreasetheMSExchangeTransportdiagnosticloggingleveltoExpert.

D.IncreasetheMSExchangeMailSubmissiondiagnosticloggingleveltoExpert.

YouhaveanExchangeServer2010organizationthatcontainsaMailboxservernamedMBX1，aClientAccessservernamedCAS1，andaHubTransportservernamedHub1.SomeusersreportthattheyhaveperformanceissueswhentheyuseMicrosoftOfficeOutlook.YouneedtogathertheRPCperformancedatafromtheservers.Whataretwopossiblewaystoachievethisgoal？（）

A.FromMBX1andCAS1，runPerformanceMonitor.

B.FromMBX1andCAS1，runthemessagetrackingviewer.

C.FromCAS1andHUB1，runtheMailFlowTroubleshooter.

D.FromMBX1andCAS1，runtheExchangeTroubleshootingAssistant.

ctoryforest.YouareplanningthedeploymentoftwoEdgeTransportserversaswellastwoHubTransportServers.Youdecidetorecommendchangestotheorganizationinordertomakesurethatusersareabletosende-mailmessagestotheInternetintheeventofatransportserverfailing.Whatshouldyoudo？（）

A.YoushouldrecommendthattheEdgeTransportserversareconfiguredassourceserversforaSendconnector.

B.YoushouldrecommendthatshadowredundancybeconfiguredfortheHubTransportservers.

C.Youshouldrecommendthatonemalexchange（MX）recordandoneSRVrecordbecreatedforevery EdgeTransportserverintheinternalDNSzone.

D.YoushouldrecommendthatfailoverclusteringbeimplementedonbothHubTransportservers.

rethatyoureceiveane-mailalertifthevolumethatcontainsthemailboxdatabasefileshaslessthan25percentoffreespace.Whatshouldyoudo？（）

A.CreateanewDataCollectorSet.

B.CreateanewEventViewerSubscription.

C.AttachanewtasktotheApplicationeventlog.

D.Modifythepropertiesofthemailboxdatabaseobjects.

A.FromtheExchangeManagementShell，runtheTest-ServiceHealthcmdlet.

B.FromtheExchangeManagementShell，runtheGet-DatabaseAvailabilityGroupcmdlet.

C.FromtheExchangeManagementConsole（EMC），viewthepropertiesofthedatabasecopy.

D.FromtheExchangeManagementConsole（EMC），viewthepropertiesoftheMailboxserver.

A.RuntheGet-MailBoxStatisticscmdlet.

B.RuntheGet-StoreUsageStatisticscmdlet.

C.AddtheMSExchangeISClientperformancecounterstothePerformanceMonitor.

D.AddtheMSExchangeISMailboxperformancecounterstothePerformanceMonitor.

A.FromtheExchangeManagementShell，runGet-MailboxDatabase.

B.FromtheExchangeManagementShell，runGet-MailboxStatistics.

C.FromtheExchangeManagementConsole，createandexportafilter.

D.FromtheExchangeManagementConsole，runtheRemoteConnectivityAnalyzer.