Theclientconnectedtothedatabaseturnsoffhisorhermachinewithoutexitingfromaconnectiontothedatabase.Whichtypeoffailureisthis？（）
A. media
B. instance
C. statement
D. userprocess
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YouexecutethiscommandinMOUNTmode：ALTERDATABASEARCHIVELOG；WhereistheinformationthatthedatabaseisnowinARCHIVELOGmodestored？（）
A. SPFILE
B. archivelog
C. controlfile
D. systemtablespace
WhenperformingincompleterecoveryusingUNTILSEQUENCEwithRMAN，whichtwopiecesofinformationarerequired？（）
A. Threadnumber.
B. LogSequencenumber.
Controlfilesequencenumber.
D. Nameofthelastarchivedlog.
Onlineindexrebuildfunctionalityhasbeenextendedtoincludewhichfourindexstructures？（）
A. Bitmapindexes.
B. Reversekeyindexes.
C. Function-basedindexes.
D. Key-compressedindexesonregulartables.
E. Key-compressedindexesonIOT（includingsecondaryindexes）
ToincreasetheavailabilityofanAdvancedReplicationenvironment，youcanaddanewmastertoareplicationgroupwithoutquiescingthegroup.Thisisachieved（）.
A. Onlywhenthenewmastersitealreadyhasexistingreplicationgroups.
Byissuingasinglecommandtocreate,populate,andactivatethenewmaster.
C. Whenthemasterdefinitionsiteisnotthesameforallofthemastergroups.
D. Withoutimpactingenduserswhoareexecutingdatamanipulationlanguage(DML)commandsonthereplicatedtables.
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