You are operating your database in NOARCHIVELOG mode. Your most recent backup includes a copy of all of the data files and the control files taken when the current log sequence number was 45. You experience disk failure on the drive on which your SYSTEM tablespace data files are stored. At the time of the failure， the current log sequence number is 98. Which files should you restore to recover from the loss of the SYSTEM tablespace data files？（）

单项选择题The SET CONTROLFILE AUTOBACKUP FORMAT command， which you can specify either within a RUN block or at the RMAN prompt， overrides the configured autobackup in the session only.  What is the order of precedence？（） 1. SET within RUN  2. SET at RMAN prompt  3. CONFIGURE

A.1,2,3 
B.2,3,1 
C.3,2,1 
D.There is no precedence between RUN and the RMAN prompt. Each will override CONFIGURE in the session. 

多项选择题Inasharedserverconfiguration，whichtwodescribetheactionsthatthelistenercantaketoserviceaclientrequest？（）

A.The listener hands the connection request directly to a dispatcher. 
B.A dedicated server inherits the connection request from the listener. 
C.The client connects to a dedicated server directly using a protocol address provided by the listener. 
D.The application initiating the session spawns a dedicated server process for the connection request. 
E.The listener issues a redirect message to the client, containing the protocol address of a dispatcher. The client then terminates the network session to the listener and establishes a network session to the dispatcher, using the network address provided in the redirect message. 

单项选择题Twodatafileshavebeendeletedattheoperatingsystemlevelbyaccident.YourdatabaseisrunninginARCHIVELOGmodeandonlinebackupsaretakennightly.OneofthedatafilesthathasbeendeletedbelongstotheUSERStablespaceontheotherbelongstotheSYSTEMtablespace.Howcanyourecoverfromthissituation？（）

A.Shut down the database, restore the two data files and then start up the database. 
B.Take the system and users tablespace offline, restore the two data files, recover the two datafiles, and then bring the SYSTEM and USERS tablespaces online. 
C.Shut down the database, restore the two data files, start up the database in MOUNT mode, recover the two data files, and then alter the database open. 
D.Take the SYSTEM and USERS tablespaces offline, recover the two datafiles and then bring the SYSTEM and USERS tablespaces online.

单项选择题YourcompanydecidedtostartusingRMANinitsbackupstrategy.Previouslyyourcompanyusedoperatingsystemfilecopies.WhichcommandisusedtomakeRMANawareofexistingbackupsmadebycopyingfilesattheoperatingsystem？（）

A.CHANGE
B.RESYNC
C.CATALOG
D.CROSSCHECK

单项选择题Theclientconnectedtothedatabaseturnsoffhisorhermachinewithoutexitingfromaconnectiontothedatabase.Whichtypeoffailureisthis？（）

A.media
B.instance
C.statement
D.user process