单选题you can perform an active database duplication when the database is in NOARCHIVELOG mode.（）A TrueB False
单选题
you can perform an active database duplication when the database is in NOARCHIVELOG mode.（）
A
True
B
False
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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.
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You are working on a database that must be functioning 24 hours a day， 7 days a week. The databaseis configured in ARCHIVELOG mode. Which two options do you have for performing user-managed backups（）A、You can perform consistent backups only.B、You can perform a complete database backup without shutting down the database instance.C、You can back up data files only when all data files have the same SCN recorded in the control file.D、You can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP commands.
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You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation?（）A、The backup as copy can only be taken to diskB、The backup as copy can only be taken to tapeC、Backup can be performed only when the instance is shutdownD、Backup will constitute all used and unused blocks in the database
Indentify two advantages of using recovery catalog instead of the control file of the database in Recovery Manager （RMAN）.（）A、 You can use RMAN stored scriptsB、 Recovery is faster if data is stored in catalog in addition to the control fileC、 You can store backup information of all registered databases in one placeD、 Database backups are automatically deleted when they are older than the specified time period
You are performing a block media recovery on the tools01.dbf data file in the SALES database by using RMAN. Which two statements are correct in this scenario？（）A、You must ensure that the SALES database is mounted or open.B、You must restore a backup control file to perform a block media recovery.C、You must take the tools01.dbf data file offline before you start a block media recovery.D、You must put the database in NOARCHIVELOG mode to perform a block media recovery.E、You can perform only a complete media recovery of individual blocks； point-in-time recovery of individual data blocks is not supported.
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单选题Your test database is running in NOARCHIVELOG mode. What are the implications of this？ （）AYou can perform open database backups.BYou can perform closed database backups.CYou cannot perform schema-level logical backups.DYou can perform the backup of only the SYSTEM tablespace when the database is open.
多选题You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation?（）AThe backup as copy can only be taken to diskBThe backup as copy can only be taken to tapeCBackup can be performed only when the instance is shutdownDBackup will constitute all used and unused blocks in the database
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多选题You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback？（）AOracle Flashback uses undo information to construct consistent data.BYou can use a cursor opened while using an Oracle Flashback image to perform DML once you deactivate Oracle Flashback in your session.CYou can only use Oracle Flashback view of the data if the required records are still in the online redo log files.DOracle Flashback lists the DML that was executed during the period you identify when initiating your session.
单选题Your test database is running in NOARCHIVELOG mode. Which statement is true regarding the type ofbackups that can be performed on the database（）AYou can perform online whole database backups.BYou can performofflinewhole database backups.CYou cannot perform schema-level export/import operations.DYou can perform the backup of only the SYSTEM tablespace when the database is open.
多选题Which two statements are true regarding the database in ARCHIVELOG mode？（）AYou have to shut down the database to perform the backups.BArchiving information is written to the data files and redo log files.CYou can perform complete database backups without closing the database.DOnline redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.EAll the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
多选题You are working on a database that must be functioning 24 hours a day， 7 days a week. The database isconfigured in ARCHIVELOG mode. Which two options do you have for performing user-managed backups（）AYou can perform consistent backups only.BYou can perform a complete database backup without shutting down the database instance.CYou can back up data files only when all data files have the same SCN recorded in the control file.DYou can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP commands
多选题You work as a database administrator for Certkiller .com. You are using Recovery Manager （RMAN） to perform backups in your databases. Which four backup operations can be performed using RMAN？（）AA backup of the target database when it is mountedBA backup of online redo log files when the database is openCA backup of only used data blocks in the file beingbeingbackup upDA backup of online， read/write data files when the database is openEA backup of only those data blocks that have changed since a previous backupFA backup of online， read/write data files when the database is in the NOMOUNT state.
单选题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？（）AUntil last commitBUntil the time you perform recoveryCUntil the time the date file got corruptedDUntil the point where the last transaction begunEYou cannot recover the SYSTEMtablespaceand must re-create the database.
多选题You are working on a database that must be functioning 24 hours a day， 7 days a week. The databaseis configured in ARCHIVELOG mode. Which two options do you have for performing user-managed backups（）AYou can perform consistent backups only.BYou can perform a complete database backup without shutting down the database instance.CYou can back up data files only when all data files have the same SCN recorded in the control file.DYou can back up only those data files whose headers are frozen by using ALTER TABLESPACE BEGINBACKUP or ALTER DATABASE BEGIN BACKUP commands.
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