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单选题
Your database is open and running in ARCHIVELOG mode. You take RMAN full backups every Sunday night. On Monday morning， while querying the user1.employees table， you receive the following error message： 01578： ORACLE data block corrupted （file # 5， block # 51） ORA-01110： data file 5： ’/u01/app/oracle/oradata/orcl/example01.dbf’ You need to rectify the corruption while ensuring the following： The data file should remain online. The mean time to recover （MTTR） should be minimal. You are not using a backup control file， and all the archived logs are accessible. Which option would you choose？（）
A
flash back the corrupted blocks
B
use the DBMS_REPAIR package
C
use the RMAN TSPITR command
D
use the RMAN BLOCKRECOVER command
E
use the RESTORE DATABASE and RECOVER DATABASE commands
F
investigate the time at which the corruption occurred and perform a point-in-time recovery
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更多 “单选题Your database is open and running in ARCHIVELOG mode. You take RMAN full backups every Sunday night. On Monday morning， while querying the user1.employees table， you receive the following error message： 01578： ORACLE data block corrupted （file # 5， block # 51） ORA-01110： data file 5： ’/u01/app/oracle/oradata/orcl/example01.dbf’ You need to rectify the corruption while ensuring the following： The data file should remain online. The mean time to recover （MTTR） should be minimal. You are not using a backup control file， and all the archived logs are accessible. Which option would you choose？（）A flash back the corrupted blocksB use the DBMS_REPAIR packageC use the RMAN TSPITR commandD use the RMAN BLOCKRECOVER commandE use the RESTORE DATABASE and RECOVER DATABASE commandsF investigate the time at which the corruption occurred and perform a point-in-time recovery” 相关考题
考题
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 containerB. 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$SEEDD. Data files that belong to the root container and all the PDBs excluding PDB$SEED
考题
You are maintaining a database that is in ARCHIVELOG mode. You have configured the flash recovery area in your database. The database is in MOUNT EXCLUSIVE mode， and you want to configure the Flashback Database feature. Which two options are NOT required to configure the Flashback Database feature？ （）A、 Open the database in read-only mode.B、 Set the retention target with the DB_FLASHBACK_RETENTION_TARGET initialization parameter.C、 Enable the block change tracking feature.D、 Execute the ALTER DATABASE FLASHBACK ON statement.
考题
You are working on the PROD database， which is in NOARCHIVELOG mode. You lost the active online redo log group due to a media failure. How should you recover your database？（）A、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， open the database with the RESETLOGS option after performing a cancel-based recovery.B、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， drop the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.C、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， clear the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.D、 Do nothing. You do not need to recover the database in this case； an instance recovery will be performed by the SMON process on startup.
考题
Your database is running in ARCHIVELOG mode. The SCOTT.EMP table belongs to the DATA1 tablespace. The junior DBA erroneously runs a script that executes the following statement： SQL DROP TABLE SCOTT.EMP PURGE； After one hour， you are performing the user managed incomplete recovery. Which datafiles will you restore from the last full backup？（）A、 the datafiles associated with the SYSTEM tablespaceB、 the datafiles associated to the DATA1 tablespaceC、 the datafiles associated to the SYSTEM and DATA1 tablespacesD、 all the datafiles in the database
考题
Your Certkiller .com database is in ARCHIVELOG mode. The data file that belongs to the SYSTEMtablespacehas become corrupted. Up to what point can you recover the database？（）A、Until last commitB、Until the time you perform recoveryC、Until the time the date file got corruptedD、Until the point where the last transaction begunE、You cannot recover the SYSTEMtablespaceand must re-create the database.
考题
Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process？（）A、 open the database with the RESTRICTED optionB、 open the database with the RESETLOGS optionC、 recover to the required SCN only that data file in which the error occurredD、 recover all the data files to the same system change number （SCN）
考题
Which two statements are true regarding the database in ARCHIVELOG mode？（）A、You have to shut down the database to perform the backups.B、Archiving information is written to the data files and redo log files.C、You can perform complete database backups without closing the database.D、Online redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.E、All the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
考题
Your test database is running in NOARCHIVELOG mode. Which statement is true regarding the type ofbackups that can be performed on the database（）A、You can perform online whole database backups.B、You can performofflinewhole database backups.C、You cannot perform schema-level export/import operations.D、You can perform the backup of only the SYSTEM tablespace when the database is open.
考题
You are managing an Oracle Database 11g database. The database is open， and you plan to perform Recovery Manager （RMAN） backups. Which three statements are true about these backups（）A、The backups would be consistent.B、The backups would be inconsistent.C、The backups would be possible only if the database is running in ARCHIVELOG mode.D、The backups would be possible only if the database is running in NOARCHIVELOG mode.E、The backups need to be restored and the database has to be recovered in case of a media failure
考题
Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt： RMAN CONFIGURE CONTROLFILE AUTOBACKUP ON； After executing this command， in which of the following cases will RMAN make an auto-backup of the control file？ （）A、 when you change the name of a datafileB、 when you drop a table from the databaseC、 when you take an export of the databaseD、 when you back up the database using OS utilitiesE、 when you issue an ALTER SYSTEM SWITCH LOGFILE statementF、 when you issue a BACKUP command from inside the RMAN run block
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）A、 ALTER DATABASE DROP LOGFILE GROUP 1B、 ALTER DATABASE CLEAR LOGFILE GROUP 1C、 ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1D、 ALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’
考题
You are managing a single instance Oracle 10g database that utilizes the following parameters： Which of the following set of commands must you execute to enable Flashback Database？（）A、 STARTUP MOUNT EXCLUSIVE ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；B、 STARTUP MOUNT ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；C、 STARTUP MOUNT EXCLUSIVE ATLER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；D、 STARTUP MOUNT ALTER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；
考题
Your database is running in ARCHIVELOG mode,and the database is open. You execute an RMAN backup and specify the KEEP clause.Which components are backed up when this option is specified?（）A、only the control file, the current SPFILE, and data filesB、only the current SPFILE and data files if autobackup is disabledC、only the data files and the archived redo logsD、the control file, current SPFILE file, data files, and archived redo logs
考题
Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process？ （）A、open the database with the RESETLOGS optionB、open the database with the RESTRICTED optionC、recover all the data files to the same system change number （SCN）D、recover to the required SCN only that data file in which the error occurred
考题
Your database is in ARCHIVELOG mode. You lost an index tablespace due to a disk failure while the database was open. You have neither a backup of the lost index tablespace nor the scripts containing the CREATE INDEX statements to recreate the indexes. Currently， several users are executing long-running queries on the database. What will happen to the ongoing activity in the database？（）A、 The queries that are currently executing will abort and an error message will be returned to the user.B、 The queries that are currently executing will execute normally but future queries will not executed.C、 Data Manipulation Language （DML） statements cannot be performed on the tables on which the indexes are based.D、 The currently executing and future queries will execute normally， but will be slower
考题
You are maintaining your database in Oracle10g. You perform a full user-managed backup every Sunday at 8：00 P.M. Your database is running in ARCHIVELOG mode. On Monday， at 9：00 A.M.， a tablespace is dropped. You decide to perform incomplete recovery to recover the dropped tablespace. Which two clauses can you use with the RECOVER command？（）A、 UNTIL SEQUENCEB、 UNTIL SCNC、 UNTIL CHANGED、 UNTIL CANCEL
考题
Your test database is running in NOARCHIVELOG mode. What are the implications of this？ （）A、You can perform open database backups.B、You can perform closed database backups.C、You cannot perform schema-level logical backups.D、You can perform the backup of only the SYSTEM tablespace when the database is open.
考题
单选题Your database is in ARCHIVELOG mode. You lost an index tablespace due to a disk failure while the database was open. You have neither a backup of the lost index tablespace nor the scripts containing the CREATE INDEX statements to recreate the indexes. Currently， several users are executing long-running queries on the database. What will happen to the ongoing activity in the database？（）A
The queries that are currently executing will abort and an error message will be returned to the user.B
The queries that are currently executing will execute normally but future queries will not executed.C
Data Manipulation Language （DML） statements cannot be performed on the tables on which the indexes are based.D
The currently executing and future queries will execute normally， but will be slower
考题
单选题Your test database is running in NOARCHIVELOG mode. What are the implications of this？ （）A
You can perform open database backups.B
You can perform closed database backups.C
You cannot perform schema-level logical backups.D
You can perform the backup of only the SYSTEM tablespace when the database is open.
考题
单选题Your database is running in ARCHIVELOG mode,and the database is open. You execute an RMAN backup and specify the KEEP clause.Which components are backed up when this option is specified?（）A
only the control file, the current SPFILE, and data filesB
only the current SPFILE and data files if autobackup is disabledC
only the data files and the archived redo logsD
the control file, current SPFILE file, data files, and archived redo logs
考题
单选题Another DBA issues a shutdown abort command on a database on which you were running an online backup. What will happen when you try to restart the database？（）A
Oracle will automatically take the datafile out of hot backup mode，generate a warning message，and then open the database.B
Oracle will automatically take the datafile out of hot backup mode and then open the database.C
Oracle will generate an error when trying to open the database，indicating that a datafile is in hot backup mode.You will need to correct this error before you can open the database.D
The database will open with the file in hot backup mode. You can restart the backup at any time.E
The datafile in hot backup mode will be corrupted and you will have to recover it.
考题
多选题Your database is running in NOARCHIVELOG mode. You want to put the database in ARCHIVELOG mode. Which two statements regarding archive log destinations are true？（）AThe destination must be global only.BA maximum of five destinations can be assigned.CA maximum of ten different destinations can be assigned.DAll the destinations are determined by the server automatically.EThe destination may be local or remote for a Standby Database.FThe destination can be changed by setting the LOG_ARCHIVE_FORMAT initialization parameter.
考题
多选题You work as a database administrator for Certkiller .com. Your database is opened in NOARCHIVEKLOG mode. You decide to place the database in ARCHIVELOG mode. How would you do this？（）AExecute the ALTER DATABASE ARCHIVELOG statementBSelect ARCHIVELOG option in the database control and restart the database to apply the changes.CShut down and start the instance, and in the NOMOUNT state execute the ALTER DATABASE ARCHIVELOG statement.DShut down and start the instance, mount the database, then execute the ALTER DATABASE ARCHIVELOG statement.
考题
单选题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 containerB
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$SEEDD
Data files that belong to the root container and all the PDBs excluding PDB$SEED
考题
多选题You are managing an Oracle Database 11g database. The database is open， and you plan to perform Recovery Manager （RMAN） backups. Which three statements are true about these backups（）AThe backups would be consistent.BThe backups would be inconsistent.CThe backups would be possible only if the database is running in ARCHIVELOG mode.DThe backups would be possible only if the database is running in NOARCHIVELOG mode.EThe backups need to be restored and the database has to be recovered in case of a media failure
考题
单选题Your database is running in ARCHIVELOG mode， and the database is open. You execute an RMAN backup and specify the KEEP clause. Which components are backed up when this option is specified？（）A
only the control file， the current SPFILE， and data filesB
only the current SPFILE and data files if autobackup is disabledC
only the data files and the archived redo logsD
the control file，current SPFILE file，data files，and archived redo logs
考题
单选题You are managing a single instance Oracle 10g database that utilizes the following parameters： Which of the following set of commands must you execute to enable Flashback Database？（）A
STARTUP MOUNT EXCLUSIVE ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；B
STARTUP MOUNT ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；C
STARTUP MOUNT EXCLUSIVE ATLER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；D
STARTUP MOUNT ALTER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；
考题
多选题Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt： RMAN CONFIGURE CONTROLFILE AUTOBACKUP ON； After executing this command， in which of the following cases will RMAN make an auto-backup of the control file？ （）Awhen you change the name of a datafileBwhen you drop a table from the databaseCwhen you take an export of the databaseDwhen you back up the database using OS utilitiesEwhen you issue an ALTER SYSTEM SWITCH LOGFILE statementFwhen you issue a BACKUP command from inside the RMAN run block
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