Your database is running in ARCHIVELOG mode. You are performing a user-managed backup of t

Your production database is running in archivelog mode and you are using recovery manager (RMAN) with recovery catalog to perform the database backup at regular intervals. When you attempt to restart the database instance after a regular maintenance task on Sunday, the database fails to open displaying the message that the data file belonging to the users tablespace are corrupted.The steps to recover the damaged data files are follows:1. Mount the database2. Open the database3. Recover the data file4. Restore the data file5. Make the data file offline6. Make the data file onlineWhich option identifies the correct sequence that you must use to recover the data files?（）

A.2，4，3

B.1，4，3，2

C.2，5，4，3，6

D.5，2，4，3，6

E.1，5，4，3，6，2

Your database is running in ARCHIVELOG mode. One of the data files,USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. Which three files would be used in the user-managed recovery process performed by the database administrator (DBA)?（）

A. Redo logs

B. Control file

C. The latest backup of only the damaged data file

D. The latest backup of all the data file in the USERS tablespace

E. Temporary files of temporary tablespace

F. Archive Logs since the latest backup to point of failure

Your database is running in ARCHIVELOG mode. One of the data files, USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available.Which three files would be used in the user-managed recovery process performed by the database administrator （）(DBA)? (Choose Three)

A. Redo logs

B. Control file

C. The latest backup of only the damaged data file

D. The latest backup of all the data file in the USERS tablespace

E. Temporary files of temporary tablespace

F. Archive Logs since the latest backup to point of failure

Examinethefollowingscenario：-DatabaseisrunninginARCHIVELOGmode.-CompleteconsistentbackupistakeneverySunday.-OnTuesdaytheinstanceterminatesabnormallybecausethediskonwhichcontrolfilesarelocatedgetscorruptedThediskhavingactiveonlineredologfilesisalsocorrupted.Thehardwareisrepairedandthepathsforonlineredologfilesandcontrolfilesarestillvalid.Whichoptionwouldyouusetoperformtherecoveryofdatabasetillthepointoffailure？（）

A.Restorethelatestwholebackup，performcompleterecovery，andopenthedatabasenormally

B.Restorethelatestwholebackup，performincompleterecovery，andopenthedatabasewiththeRESETLOGSoption.

C.Restorethelatestbackupscontrolfile，performcompleterecovery，andopenthedatabasewiththeRESETLOGSoption.

D.Restorethelatestbackupcontrolfile，performincompleterecoveryusingbackupcontrolfile，andopenthedatabasewiththeRESETLOGoption.

Your multitenant container database (CDB) is running in ARCHIVELOG mode. You connect to the CDB RMAN.Examine the following command and its output:You execute the following command:RMAN > BACKUP DATABASE PLUS ARCHIVELOG;Which data files will be backed up?（）

A. Data files that belong to only the root container

B. Data files that belong to the root container and all the pluggable databases (PDBs)

C. Data files that belong to only the root container and PDB$SEED

D. Data files that belong to the root container and all the PDBs excluding PDB$SEED

YourdatabaseisrunninginARCHIVELOGmode.Oneofthedatafiles，USERDATA01.dbf，intheUSERStablespaceisdamagedandyouneedtorecoverthefileuntilthepointoffailure.Thebackupforthedatafileisavailable.Whichthreefileswouldbeusedintheuser-managedrecoveryprocessperformedbythedatabaseadministrator（DBA）？（）

A.Redologs

B.Controlfile

C.Thelatestbackupofonlythedamageddatafile

D.ThelatestbackupofallthedatafileintheUSERStablespace

E.Temporaryfilesoftemporarytablespace

F.ArchiveLogssincethelatestbackuptopointoffailure

Examine the following scenario:-Database is running in ARCHIVELOG mode.-Complete consistent backup is taken every Sunday.-On Tuesday the instance terminates abnormally because the disk on which control files are located gets corrupted-The disk having active online redo log files is also corrupted.-The hardware is repaired and the paths for online redo log files and control files are still valid.Which option would you use to perform the recovery of database till the point of failure?（）

A. Restore the latest whole backup, perform complete recovery, and open the database normally

B. Restore the latest whole backup, perform incomplete recovery, and open the database with the RESETLOGS option

C. Restore the latest backups control file, perform complete recovery, and open the database with the RESETLOGS option

D. Restore the latest backup control file, perform incomplete recovery using backup control file, and open the database with the RESETLOG option

YourdatabaseisrunninginARCHIVELOGmode.TheSCOTT.EMPtablebelongstotheDATA1tablespace.ThejuniorDBAerroneouslyrunsascriptthatexecutesthefollowingstatement：SQL>DROPTABLESCOTT.EMPPURGE；Afteronehour，youareperformingtheusermanagedincompleterecovery.Whichdatafileswillyourestorefromthelastfullbackup？（）

A.thedatafilesassociatedwiththeSYSTEMtablespace

B.thedatafilesassociatedtotheDATA1tablespace

C.thedatafilesassociatedtotheSYSTEMandDATA1tablespaces

D.allthedatafilesinthedatabase

Your multitenant container database, CDB1, is running in ARCHIVELOG mode and has two pluggable databases, HR_PDB and ACCOUNTS_PDB. An RMAN backup exists for the database.You issue the command to open ACCOUNTS_PDB and find that the USERDATA.DBF data file for the default permanent tablespace USERDATA belonging to ACCOUNTS_PDB is corrupted.What should you do before executing the commands to restore and recover the data file in ACCOUNTS_PDB?（）

A. Place CDB1 in the mount stage and then the USERDATA tablespace offline in ACCOUNTS_PDb.

B. Place CDB1 in the mount stage and issue the ALTER PLUGGABLE DATABASE accounts_pdb CLOSE IMMEDIATE command.

C. Issue the ALTER PLUGGABLE DATABASE accounts_pdb RESTRICTED command.

D. Take the USERDATA tablespace offline in ACCOUNTS_PDb.

YourdatabaseisopenandrunninginARCHIVELOGmode.YoutakeRMANfullbackupseverySundaynight.OnMondaymorning，whilequeryingtheuser1.employeestable，youreceivethefollowingerrormessage：

01578：ORACLEdatablockcorrupted（file#5，block#51）ORA-01110：datafile5：

’/u01/app/oracle/oradata/orcl/example01.dbf’

Youneedtorectifythecorruptionwhileensuringthefollowing：Thedatafileshouldremainonline.

Themeantimetorecover（MTTR）shouldbeminimal.

Youarenotusingabackupcontrolfile，andallthearchivedlogsareaccessible.

Whichoptionwouldyouchoose？（）