A"trusted"clientneedstocommunicatewithaserverthathasbeenconfiguredtouseCLIENTauthentication.Whichofthefollowingwillbeusedtoverifypasswords?（）
A. UserID/passwordfile
B. Communicationslayer
Clientapplications
D. Operatingsystem
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TheEMPtablehassomediscrepancyindataentrywithaparticularemployeeID.YouexecutethequeryasshownintheExhibittoretrieveallversionsoftherowthatexistbetweentwoSCNs. ViewtheExhibit. WhichtwostatementsabouttheresultsofthequeryshownintheExhibitarecorrect?（）
A. TheLAST_SCNvalueinthefirstrowisNULL,whichmeansthattheversionsoftherowstillexistatSCN6636300.LAST_SCN
B. TheLAST_SCNvalueinthesecondrowinNULL,whichmeansthattheversionoftherowstillexistsatSCN6636300.
C. TheLAST_SCNvalueinthethirdrowis6636280,whichmeansthattheversionofrowexistsaboveSCN6636280.
D. TheLAST_SCNvalueinthesecondrowisNULL,whichmeansthattheversionoftherownolongerexistsbecauseitwasdeleted.LAST_SCN
AdatabaseinstanceisusinganAutomaticStorageManagement(ASM)instance,whichhasadiskgroup,DGROUP1,createdasfollows: WhathappenswhenthewholeCONTROLLER1Failuregroupisdamaged?（）
A. Thetransactionsthatusethediskgroupwillhalt.
B. ThemirroringofallocationunitsoccurswithintheCONTROLLER2failuregroup.
C. ThedataintheCONTROLLER1failuregroupisshiftedtotheCONTROLLER2failuregroupandimplicitrebalancingistriggered.
D. TheASMdoesnotmirroranydataandnewlyallocatedprimaryallocationunits(AU)arestoredintheCONTROLLER2failuregroup.
Youwanttosetthefollowinginitializationparametersforyourdatabaseinstance： Identifythestatementthatcorrectlydescribesthissetting.（）
A. TheMANDATORYlocationmustbeaflashrecoveryarea.
B. Theoptionaldestinationsmaynotusetheflashrecoveryarea.
C. ThissettingisnotallowedbecausethefirstdestinationisnotsetasMANDATOR
D. Theonlineredologfileisnotallowedtobeoverwrittenifthearchivedlogcannotbecreatedinthefourthdestination.
Company.com has an application that has a hard-coded hostname in the startup routines. The application is being made highly available using HACMP. During testing， the application does not start on the standby node because the hostname was not what the application expected. What can be done to fix this problem？（）
A. Manage the hostname in the application server start ands top scripts
B. Nothing，because this application cannot be controlled by HACMP and should be startedwith/etc/inittab
Change the hard-coded hostname in the application startup routines to use the uname ratherthan the hostname
D. Override the default ha_hostname in the cluster configuration to reflect the shared hostname ratherthan the default ha_hostname
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