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20.A. causingB. teachingC. pretendingD. trying
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Why not ______ again?
A、tryB、triedC、triesD、trying
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An employee cannot access the company database. You check the connection variables:What is a valid explanation for why one of the users is unable to connect to the database?()
A.Bob has max_user_connections set to zero, which blocks all his connectionsB.Joe has exceeded the max_user_connections global limitC.All users are blocked because max_user_connections is accumulated over the host account informationD.Kay is already connected elsewhere and attempting to log in againE.Connect_timeout is too small to allow a connection to occur
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Which configuration command establishes an EBGP session to a peer in AS 300?()
A. neighbor 200.16.1.2 remote-as 300B. bgp-neighbor 200.16.1.2 remote-as 300C. ebgp-neighbor 200.16.1.2 remote-as 300D. neighbor 200.16.1.2 remote-as 300 connection-type ebgp
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YouhavetwocomputersnamedComputer1andComputer2.ThecomputersrunWindowsXPProfessionalandarejoinedtoanActiveDirectorydomain.Computer1containstherecoveryagentcertificateforthedomain.AdomainusernamedUser1encryptsfilesonComputer2inafoldernamedC:\User1.TheuserleavesthecompanyandtheadministratordeletesUser1’saccount.YouneedtodecryptthefilesencryptedbyUser1.Whatshouldyoudo?()A.LogontoComputer2byusingthedomainadministratoraccount.Atthecommandprompt,runcipher.exe/uc:\user1\*.*.B.CreateanewdomainuseraccountnamedUser1.LogontoComputer2asUser1.Modifythepropertiesoftheencryptedfiles.C.RemoveComputer2fromthedomain.LogontoComputer2byusingthelocaladministratoraccount.Modifythepropertiesoftheencryptedfiles.D.BackuptheencryptedfilesonComputer2.RestorethefilesonComputer1.LogontoComputer1byusingtherecoveryagentaccountandmodifythepropertiesoftheencryptedfiles.
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A real-time operating system.(RTOS)is an operating system intended to serve( )application process data as it comes in,typically without buffering delays.A key( )of a RTOS is the level of its consistency concerning the amount of time it takes to accept and complete an application’s task;the variability is jitter.A hard real-time operating system has( )jitter than a soft real-time operating system.The chief design goal is not high throughput,but rather a guarantee of a soft or hard performance category.A RTOS has an advanced algorithm for scheduling.(请作答此空)flexibility enables a wider,computer-system orchestration of process priorities,but a real-time OS is more frequently dedicated to a narrow set of applications.Key factors in a real-time OS are minimal( )latency and minimal thread switching latency.A.Scheduler
B.Programming
C.Network
D.User
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在AD中关键实体有哪些?A.computer 计算机B.user 用户C.ou(organize unit,组织单元)D.以上答案都不对
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J2EE中在JSP中要使用user包中的User类,则以写法正确的是()。A.<jsp:useBeam id="user" class="user" import="user.*"/>B.<jsp:useBean id="user" class="user.User" scope="page"/>C.<jsp:useBean class="user.Use.class"/>D.<jsp:useBean name="user" class="user.User"/>
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4、在JSP中要使用user包中的User类,则以下写法正确的是()。A.<jsp:useBeam id=”user” class=”user” import=”user.*”/>B.<jsp:useBean id=”user” class=”user.User” scope=”page”/>C.<jsp:useBean class=”user.Use.class”/>D.<jsp:useBean name=”user” class=”user.User”/>
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使用以下哪条命令,可以手动启动计算机配置的组策略? ()A.gpupdate /target:user /forceB.net start gpupdateC.gpupdate /target:computer /forceD.net stop gpupdate