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Which of the following best describes a full backup? （）
- A、All datafiles of a database
- B、All datafiles, archive logs, and control files
- C、All datafiles and control files
- D、All the used blocks in a datafile
参考答案
更多 “Which of the following best describes a full backup? （）A、All datafiles of a database B、All datafiles, archive logs, and control files C、All datafiles and control files D、All the used blocks in a datafile” 相关考题
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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 logsB. Control fileC. The latest backup of only the damaged data fileD. The latest backup of all the data file in the USERS tablespaceE. Temporary files of temporary tablespaceF. Archive Logs since the latest backup to point of failure
考题
Which of the following files cannot be backed up by RMAN? ()(Choose all that apply.)
A. Database datafilesB. Control filesC. Online redo logsD. Database pfilesE. Archived redo logs
考题
You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN >BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?（）A. Corrupted blocks, if any, are repaired.B. Checks are performed for physical corruptions.C. Checks are performed for logical corruptions.D. Checks are performed to confirm whether all database files exist in correct locationsE. Backup sets containing both data files and archive logs are created.
考题
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 logsB、Control fileC、The latest backup of only the damaged data fileD、The latest backup of all the data file in the USERS tablespaceE、Temporary files of temporary tablespaceF、Archive Logs since the latest backup to point of failure
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 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 logsB、Control fileC、The latest backup of only the damaged data fileD、The latest backup of all the data file in the USERS tablespaceE、Temporary files of temporary tablespaceF、Archive Logs since the latest backup to point of failure
考题
You are using Oracle Database 10g. You performed an incomplete recovery of your database and opened the database with the RESETLOGS option. What is the effect of opening the database with the RESETLOGS option？（）A、This operation resets the SCN for the database.B、This operation creates a new incarnation of the database.C、This operation moves all the redo log files to a different location.D、This operation deletes the old redo log files and creates new redo log files.E、This operation updates all current datafiles and online redo logs and all subsequent archived redo logs with a new RESETLOGS SCN and time stamp.
考题
You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?（）A、Corrupted blocks, if any, are repaired.B、Checks are performed for physical corruptions.C、Checks are performed for logical corruptions.D、Checks are performed to confirm whether all database files exist in correct locationsE、Backup sets containing both data files and archive logs are created.
考题
You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement： SQLALTER DATABASE OPEN RESETLOGS； Which of the following options is true about using the RESETLOGS option？（）A、 The log sequence is reset to 0.B、 All the online redo logs are deleted.C、 All the archived redo logs from a previous incarnation become useless.D、 The full database backup taken from a previous incarnation can be used in future.E、 Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.
考题
You are using RMAN to backup your ARCHIVELOG mode database. You have enabled control-file autobackups. Which files are not backed up during the RMAN backup?（）A、Database Datafiles B、Database Control Files C、Online redo logsD、Archived redo logs E、The database SPFILE F、None of the above, all these files are backed up.
考题
What is the result of this command？（） RMAN Report need backup days 3；A、 Lists all datafiles created in the last three days that are not backed up.B、 Lists all datafiles not recoverable based on the current retention criteria.C、 Lists all datafiles not backed up in the last three days. The datafile is not recoverable. D、 Lists all datafiles that need to be backed up due to unrecoverable operations.E、 Lists all datafiles not backed up in the last three days. It does not imply that the datafile is not recoverable.
考题
In which scenario will you issue the following command？（） SQL RECOVER DATABASE UNTIL TIME ’2005-10-04 ： 12：09：08’ USING BACKUP CONTROLFILE；A、 when all the control files are missing and only a binary backup of the current control file existsB、 when a multiplexed copy of the current control file is missingC、when all the control files are missing and only a script containing the CREATE CONTROLFILE statement existsD、 when the SPFILE is missing
考题
Why would you execute the report obsolete command？（） A、 To list all backups that were no longer available for restore operationsB、 To list all backups that had aged beyond the RMAN retention criteriaC、 To list all backup set pieces listed in control-file or recovery-catalog metadata that are not on the backup mediaD、 To list all datafiles that are no longer part of the database and thus do not need to be backed upE、 To list all archived redo logs that are no longer needed for any database recovery
考题
You have lost all your database control files. To recover them， you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery？（） A、 You will need to open the database with the resetlogs command.B、 All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C、 You will use the resetlogs version of the create controlfile command.D、 You will use the noresetlogs version of the create controlfile command.E、 You will use the trace file to create a backup control file， and then you will recover the database with the recover database using backup controlfile command
考题
Which of the following files cannot be backed up by RMAN? （）(Choose all that apply.）A、Database datafilesB、Control filesC、Online redo logsD、Database pfilesE、Archived redo logs
考题
Which of the following statements is true when the database is in ARCHIVELOG mode and tablespaces are in hot backup mode？（）A、 Archive log generation is suspended until the tablespaces are taken out of hot backup mode. B、 Datafiles are not written to during hot backups.C、 Changes to the database are cached during the backup and not written to the datafiles to ensure that the datafiles are consistent when recovered.D、 The datafile headers are not updated during the backup.E、 The way data is written to the online redo logs is unchanged during the backup.
考题
单选题Which of the following best describes a full backup? （）A
All datafiles of a database B
All datafiles, archive logs, and control files C
All datafiles and control files D
All the used blocks in a datafile
考题
单选题Your database is configured in NOARCHIVELOG mode. Due to a media failure， you have lost one of the datafiles belonging to a read-only tablespace. You know that the last backup was performed after the tablespace was made read-only. Which action should you take to restore the missing datafile in the minimum amount of time？（）A
Restore all the datafiles from the backup.B
Restore only the lost datafile from the backup.C
Restore all the datafiles for the lost tablespace from the backup.D
Restore all the datafiles for the lost tablespace and all the SYSTEM and SYSAUX datafiles from the backup.
考题
多选题You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?（）ACorrupted blocks, if any, are repaired.BChecks are performed for physical corruptions.CChecks are performed for logical corruptions.DChecks are performed to confirm whether all database files exist in correct locationsEBackup sets containing both data files and archive logs are created.
考题
多选题You are using Oracle Database 10g. You performed an incomplete recovery of your database and opened the database with the RESETLOGS option. What is the effect of opening the database with the RESETLOGS option？ （）AThis operation resets the SCN for the database.BThis operation creates a new incarnation of the database.CThis operation moves all the redo log files to a different location.DThis operation deletes the old redo log files and creates new redo log files.EThis operation updates all current datafiles and online redo logs and all subsequent archived redo logs with a new RESETLOGS SCN and time stamp.
考题
单选题In which scenario will you issue the following command？（） SQL RECOVER DATABASE UNTIL TIME ’2005-10-04 ： 12：09：08’ USING BACKUP CONTROLFILE；A
when all the control files are missing and only a binary backup of the current control file existsB
when a multiplexed copy of the current control file is missingC
when all the control files are missing and only a script containing the CREATE CONTROLFILE statement existsD
when the SPFILE is missing
考题
单选题You are using RMAN to backup your ARCHIVELOG mode database. You have enabled control-file autobackups. Which files are not backed up during the RMAN backup?（）A
Database Datafiles B
Database Control Files C
Online redo logsD
Archived redo logs E
The database SPFILE F
None of the above, all these files are backed up.
考题
单选题You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement： SQLALTER DATABASE OPEN RESETLOGS； Which of the following options is true about using the RESETLOGS option？（）A
The log sequence is reset to 0.B
All the online redo logs are deleted.C
All the archived redo logs from a previous incarnation become useless.D
The full database backup taken from a previous incarnation can be used in future.E
Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.
考题
单选题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
单选题Assume your situation can be described as follows： x A full backup taken using RMAN is available on disk. x The current control files were NOT damaged and do not need to be restored. x All data files are damaged or lost. x The database is in NOARCHIVELOG mode. Which RMAN command would be most appropriate to use in line 3 of the following RMAN command set to restore and fully recover your database？（） 1. RMAN STARTUP MOUNT 2. RMAN RESTORE DATABASE; 3. RMAN （） 4. RMAN ALTER DATABASE OPEN;A
RECOVER DATABASE；B
SWITCH DATAFILE ALL；C
RESTORE CONTROL FILE；D
RECOVER DATABASE USING BACKUP CONTROL FILE；
考题
单选题Which of the following statements is true when the database is in ARCHIVELOG mode and tablespaces are in hot backup mode？（）A
Archive log generation is suspended until the tablespaces are taken out of hot backup mode. B
Datafiles are not written to during hot backups.C
Changes to the database are cached during the backup and not written to the datafiles to ensure that the datafiles are consistent when recovered.D
The datafile headers are not updated during the backup.E
The way data is written to the online redo logs is unchanged during the backup.
考题
单选题You have lost all your database control files. To recover them， you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery？（）A
You will need to open the database with the resetlogs command.B
All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C
You will use the resetlogs version of the create controlfile command.D
You will use the noresetlogs version of the create controlfile command.E
You will use the trace file to create a backup control file， and then you will recover the database with the recover database using backup controlfile command
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