●A disk scheduling mechanism in an operating system causes the disk arm to sweepbackand forth across the disk Surface servicing all requests in its path．This is a (73) ．(73) A．First Come First ServeB．Shortest Seek Time FirstC．ScanD．None of the above

题目

●A disk scheduling mechanism in an operating system causes the disk arm to sweepbackand forth across the disk Surface servicing all requests in its path．This is a (73) ．

(73) A．First Come First Serve

B．Shortest Seek Time First

C．Scan

D．None of the above

相似考题

1.DOS的英文表示是()。A、Disk、Operating、SystemB、Daily、Operating、SystemC、Disk、Open、SystemD、Date、Open、System

2.Youwanttosetthefollowinginitializationparametersforyourdatabaseinstance：LOG_ARCHIVE_DEST_1=’LOCATION=/disk1/arch’LOG_ARCHIVE_DEST_2=’LOCATION=/disk2/arch’LOG_ARCHIVE_DEST_3=’LOACTION=/disk3/arch’LOG_ARCHIVE_DEST_4=’LOCATION=/disk4/archMANDATORY’Identifythestatementthatcorrectlydescribesthissetting.（）A.TheMANDATORYlocationmustbeaflashrecoveryarea.B.Theoptionaldestinationsmaynotusetheflashrecoveryarea.C.ThissettingisnotallowedbecausethefirstdestinationisnotsetasMANDATORY.D.Theonlineredologfileisnotallowedtobeoverwrittenifthearchivedlogcannotbecreatedinthefourthdestination.

3.YouwanttosetthefollowingInitializationparametersforyourdatabaseInstanceLOG_ARCHIVE_DEBT_1=，，LOCATION=/disk1/archLOG_ARCHIVE_DBST_2=，，LOCATION=/disk2/archLOC_ARCHIVBDBST_3=，，LOCATION=/disk3/archLOG_ARCHIVEDBST_=，，LOCATION=/disk3/archIdentifythestatementthatcorrectlydescribesthissetting.（）A.TheMANDATORYlocationmustbeaflashrecoveryarea.B.Theoptionaldestinationsmaynotusetheflashrecoveryarea.C.ThissettingisnotallowedbecausethefirstdestinationisnotsetasMANDATORY.D.Theonlineredologfileisnotallowedtobeoverwrittenifthearchivedlogcannotbecreatedinthefourthdestination.

4.安装Windows时,Setup程序在()盘上。A.DISK1B.DISK2C.DISK3D.DISK4

更多“●A disk scheduling mechanism in an operating system causes the disk arm to sweepbackand fo ”相关问题

  • 第1题：

    Youhavethefollowingonlineredologconfiguration：GroupMember1’/disk1/oradata/redo01a.log’2’/disk2/oradata/redo02a.log’3’/disk3/oradata/redo03a.log’Youdecidetomultiplextheonlineredologgroupsforrecoveryofredologfilesincaseofanydisaster.WhichtwostatementswillyouNOTissuetomultiplextheonlineredologfiles？（）

    A.ALTERDATABASEADDLOGFILEMEMBER’/disk1/oradata/redo01b.log’TOGROUP1；

    B.ALTERDATABASEADDLOGFILEMEMBER’/disk2/oradata/redo01b.log’TOGROUP1；

    C.ALTERDATABASEADDLOGFILEMEMBER’/disk1/oradata/redo02b.log’TOGROUP2；

    D.ALTERDATABASEADDLOGFILEMEMBER’/disk2/oradata/redo02b.log’TOGROUP2；

    E.ALTERDATABASEADDLOGFILEMEMBER’/disk1/oradata/redo3b.log’TOGROUP3；

    F.ALTERDATABASEADDLOGFILEMEMBER’/disk2/oradata/redo3b.log’TOGROUP3；


    参考答案：A, C

  • 第2题：

    AclientisexperiencingissuesaftercloninganLPARusingalt_disk_install.DLPARfunctionsarenotavailableforthenewLPAR.Also,thereisalotofnetworktraffictotheHMC.Whatisthemostprobablecauseofthisproblem?()

    A.DLPARfunctionsarenotavailableforclonedpartitions

    B.ThenewpartitionhasthesamenodenumberastheoriginalLPAR

    C.Additionalfilesetsneedtobereinstalledafterthealt_disk_installcloning

    D.ThespeedandduplexsettingsontheEthernetadapteronthenewLPARismisconfigured


    参考答案：B

  • 第3题：

    Youacquireapcwith3harddrives：Disk0，Disk1，Disk2.Eachphysicaldiskhasacapacityof6GB.Youwanteachdisktoconsistofonepartition.Youwanttoconfigurethecomputertodual-bootWin98andWin2KPRO.YouwanttosaveyourdocumentstoDisk1andhavetheabilitytoaccessthemundereitherOS.YoualsowanttoinstallWin2KPROandhavetheabilitytosecureindividualfilesonDisk2.


    Dragtheappropriatefilesystemstothecorrectdisks.
    DragFAT32toDisk0
    DragFAT32toDisk1
    DragNTFStoDisk2

    YoushouldformatyourDisk0withFAT32filesystembecauseyouwantdualbootingofWindow98andWindows2000professional.
    YoushoulddragFAT32totheDisk1becauseyouwantdatastoredatDisk1tobeaccessiblefromeitherOS.
    YoushoulddragNTFStoDisk2becauseNTFSonlyprovideslocalfileandfolderlevelsecurity.

  • 第4题：

    YouareworkingasaDBAinanorganization.Theflashrecoveryareafilesarecreatedin’+disk1’.Youwanttocreatenewflashrecoveryareafilesinthe’+disk2’location.Thenewlocationoftheflashrecoveryareafilesshouldbewritteninthecontrolfileandthespfile.Whichcommandwillyouissuetochangethelocationoftheflashrecoveryareafiles？（）

    A.ALTERSYSTEMSETDB_RECOVERY_FILE_DEST=’+disk2’；

    B.ALTERSYSTEMSETDB_RECOVER_FILE_DEST=’+disk2’SCOPE=BOTH；

    C.ALTERSYSTEMSETDB_CREATE_FILE_DEST=’+disk2’；

    D.ALTERSYSTEMSETDB_CREATE_ONLINE_LOG_DEST_n=’+disk2’；


    参考答案：B

  • 第5题：

    Afterusingthealt_disk_installcommandtocloneasystemimagetoanotherdisk,thesystemadministratornoticedalargenumberofdefineddevicesnotallocatedtotheLPAR.Whichofthefollowingisthemostlikelycauseofthissituation?（）

    A.Thecfgmgrcommandwasnotruntoreconfigurethedevices

    B.ThemachinewasnotbootedintoSMSMultiBootmodeafterconfiguration

    C.Themachinewasnotinfullsystempartitionmodewhenthevolumewascreated

    D.Thealt_disk_installcommandwasnotrunwiththe-OoptiontoremovereferencesintheODM


    参考答案：D

  • 第6题：

    ExaminetheRMANcommand:SWITCHDATAFILE’／DISK3／user_data01.dbf’;Whichcommanddoyouneedtoissuebeforeyouissuetheabovecommand,sothatRMANfindsthefileintherestoredlocationof’DISK2／user_data01.dbf’?()

    A.RESTOREDATAFILE’/DISK2/user_data01.dbf’

    B.RESTOREDATAFILE’/DISK3/user_data01.dbf’

    C.SETNEWNAMEFOR’/DISK3/user_data01.dbf’TO’/DISK2/user_data01.dbf’

    D.SETNEWNAMEFOR’/DISK2/user_data01.dbf’TO’/DISK3/user_data01.dbf’


    参考答案：C

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