单项选择题

YourbossatSupportcenter.cnwantsyoutoclarifyOracle10g.Whichstatementregardingtheusageofredologfilesduringinstancerecoveryistrue？（）

A.Transactionsarerolledbackusingredologfiles.
B.Transactionsarerolledforwardusingredologfiles.
C.Transactionsarerolledbackusingredologfilesandarchivedlogfiles.
D.Transactionsarerolledforwardusingredologfilesandrolledbackusingredologfiles.

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单项选择题

YouhaveissuedaSHUTDOWNABORTcommandtobringdownyourdatabaseinstance.Considerthestepsthatwillbeperformedlaterwhenyouopenthedatabase：1.SGAisallocated.2.Controlfileisread.3.Redologfilesareread.4.Instancerecoveryisstarted.5.Backgroundprocessesarestarted.6.Datafilesarecheckedforconsistency.7.Serverparameterfileortheinitializationparameterfileisread.Whichoptionhasthecorrectorderinwhichthesestepsoccur（）
A.7，1，5，2，3，6，4
B.1，2，3，7，5，6，4
C.7，1，4，5，2，3，6
D.1，7，5，4，2，3，6

A.Considerthestepsthatwillbeperformedlaterwhenyouopenthedatabase：1.SGAisallocated.2.Controlfileisread.3.Redologfilesareread.4.Instancerecoveryisstarted.5.Backgroundprocessesarestarted.6.Datafilesarecheckedforconsistency.7.Serverparameterfileortheinitializationparameterfileisread.Whichoptionhasthecorrectorderinwhichthesestepsoccur（）
A.7，1，5，2，3，6，4
B.1，2，3，7，5，6，4
C.7，1，4，5，2，3，6
D.1，7，5，4，2，3，6

单项选择题

YouareusingRMANtobackupyourARCHIVELOGmodedatabase.Youhaveenabledcontrol－fileautobackups.WhichfilesarenotbackedupduringtheRMANbackup？（）

A.DatabaseDatafiles
B.DatabaseControlFiles
C.Onlineredologs
D.Archivedredologs
E.ThedatabaseSPFILE
F.Noneoftheabove，allthesefilesarebackedup