单选题You performed an incomplete recovery and opened the database with the RESETLOGS option. The LOG_ARCHIVE_FORMAT parameter is set to ’ora_%t_%s_%r.log’.  Which statement regarding the archived redo log files, created in an earlier incarnation of the database,is true?()A The archived redo log files will be overwritten.B The archived redo log files are deleted automatically.C The archived redo log files should be moved to some other location.D The archived redo log files are still maintained because the file names are unique.

单选题
You performed an incomplete recovery and opened the database with the RESETLOGS option. The LOG_ARCHIVE_FORMAT parameter is set to ’ora_%t_%s_%r.log’.  Which statement regarding the archived redo log files, created in an earlier incarnation of the database,is true?()
A

 The archived redo log files will be overwritten.

B

 The archived redo log files are deleted automatically.

C

 The archived redo log files should be moved to some other location.

D

 The archived redo log files are still maintained because the file names are unique.


参考解析

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You issued the following RMAN command to back up the database:Which two statements are true regarding the backup performed?() A. Archived redo log files are backed up along with data files.B. Only data files are backed up and a restore point named FY06Q4 is created.C. Archived log files are backed up along with data files, and the archived log files are deleted.D. The command creates a restore point named FY06Q4 to match the SCN at which this backup is consistent.

Which statement is true regarding the Archiver (ARCn) process,archived log files,and recovery? ()A、A database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure. B、During recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files. C、After each write to an archived log, the mandatory background process ARCn writes its log sequence number and the first and last SCN number within the log sequence to the control file. D、At database recover time, and archived redo log is uniquely identified for recovery use by its redo thread number and destination ID number retrieved from the control file.

You have configured flash recovery area in your database and you set the following Initialization parameters for your database instance:   LOG_ARCHIVE_DEST 1 = ,,LOCATION=/disk1/arch MANDATORY’  LOG _ARCHIEVE_DEST 2 = ,,LOCATION=/disk2/arch’ LOG_ARCHIVK_DEST_3 = ,,LOCATION=/diSk3/arch  LOG_ARCH1VK_DEST_4 = ’ LOCATION=/disk4/arch’  LOG_ARCHIVE_MIN-SUCCEED_DEST = 2   While the database instance is functional,you realized that the destination set by the  LOG_ARCHIVE_DEST_I parameter Is not available for the archived redo log file to be created in. All redo log groups have been used.  What happens in an event of log switch?()  A、 The online redo log file Is not allowed to be overwritten.B、 The archived redo log files are written to the flash recovery area until the MANDATORY destination is made available.C、 The database instance will crash because the archived redo log file cannot be created in a destination set as MANDATORY.D、 The destination set by the LOG_ARCHIVE_DEST_1 parameter is ignored and the archived redo log files are created in the next two available locations to guarantee archive log success.

Every Sunday, consistent backups are performed on your database. Because of a user error, you performed an incomplete recovery on Tuesday and opened the database with the RESETLOGS option. A user error occurs again on Thursday, which necessitates an incomplete recovery. Sunday’s backup is the most recent backup available. What would you do in this scenario?()A、recovery cannot be performed because a backup was not performed after the last incomplete recoveryB、restore all the files from Sunday’s backup, and then perform an incomplete recovery up to the point in time when the user error occurred on ThursdayC、restore all the files from Sunday’s backup, and then recover up to the point in time when the RESETLOGS operation was performed on TuesdayD、restore all the files from Sunday’s backup, and open the database to reset the database to the point in time when the backup was performed on Sunday

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.

The database is running in ARCHIVELOG mode. Examine the initialization parameters and theirvalues set to enable archiving on your database server:  LOG_ARCHIVE_FORMAT = arch_%t_%s_%r.arc  LOG_ARCHIVE_DEST_1 = ’LOCATION = /disk1/archive’  DB_RECOVERY_FILE_DEST = ’/u01/oradata’  DB_RECOVERY_FILE_DEST_SIZE = 20G  Which statement is true regarding the archived redo log files()A、It will be created on the local file system.B、It will be created only in the Flash Recovery Area.C、It will be created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and the defaultlocation $ORACLE_HOME/dbs.D、It will be created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and locationspecified by the DB_RECOVERY_FILE_DEST parameter.

You are using Oracle Database 10g. The LOG_ARCHIVE_FORMAT parameter is set to  ’LOG%t_%s_%r.dbf’.  Why is %r used in the file name format?() A、to uniquely identify the archived log files with the restore operationB、to uniquely identify the archived log files with the redo log group numberC、to uniquely identify the archived log files for each incarnation of the databaseD、to uniquely identify the archived log files with the number of recovery operations performed

You performed the RMAN database backup with the KEEP option. Which two statements are true regarding this backup?()A、 The backup contains data files, the server parameter file,and the control file even if the control file autobackup is disabled.B、 The KEEP option overrides the configured retention policy.C、 The backup contains only data files and archived redo log files.D、 The KEEP option is an attribute of an individual backup piece.

You performed an incomplete recovery and opened the database with the RESETLOGS option. The LOG_ARCHIVE_FORMAT parameter is set to ’ora_%t_%s_%r.log’.  Which statement regarding the archived redo log files, created in an earlier incarnation of the database,is true?()A、 The archived redo log files will be overwritten.B、 The archived redo log files are deleted automatically.C、 The archived redo log files should be moved to some other location.D、 The archived redo log files are still maintained because the file names are unique.

You database is running an ARCHIVELOG mode. The following parameter are set in your database instance: LOG_ARCHIVE_FORMAT = arch+%t_%r.arc LOG_ARCHIVE_DEST_1 = ‘LOCATION = /disk1/archive’ DB_RECOVERY_FILE_DEST_SIZE = 50G DB_RECOVERY_FILE = ‘/u01/oradata’ Which statement is true about the archived redo log files?()A、They are created only in the location specified by the LOG_ARCHIVE_DEST_1 parameter.B、They are created only in the Fast Recovery Area.C、They are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and in the default location $ORACLE_HOME/dbs/arch.D、They are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and the location specified by the DB_RECOVERY_FILE_DEST parameter.

In your database, you may be forced to perform a recovery using the RESETLOGS option during which the redo logs would be reset to sequence number 1. You want to avoid the overwriting of old log files. Which archived log file name format ensures this? ()A、%t_%s.dbfB、arch_%t.arcC、arch_%d.arcD、arch_%t_%d.arcE、arch_%d_%s_.dbfF、arch_%t_%s_%r.arc

Which statement about recovering from the loss of a redo log group is true?()A、If the lost redo log group is ACTIVE, you should first attempt to clear the log file.B、If the lost redo log group is CURRENT, you must clear the log file.C、If the lost redo log group is ACTIVE, you must restore, perform cancel-based incomplete recovery, and open the database using the RESETLOGS option.D、If the lost redo log group is CURRENT, you must restore, perform cancel-based incomplete recovery, and open the database using the RESETLOGS option.

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.

You are using Oracle Database 10g. Which statement regarding an incomplete recovery is true?()A、 You do not need to restore all the data files.B、 You do not need to open the database with the RESETLOGS operationC、 You do not need to perform a full backup after the RESETLOGS operation.D、 You do not need to recover all the data files to the same system change number (SCN).

单选题Which statement about recovering from the loss of a redo log group is true?()A If the lost redo log group is ACTIVE, you should first attempt to clear the log file.B If the lost redo log group is CURRENT, you must clear the log file.C If the lost redo log group is ACTIVE, you must restore,perform cancel-based incomplete recovery,and open the database using the RESETLOGS option.D If the lost redo log group is CURRENT, you must restore,perform cancel-based incomplete recovery,and open the database using the RESETLOGS option.

单选题You database is running an ARCHIVELOG mode. The following parameter are set in your database instance: LOG_ARCHIVE_FORMAT = arch+%t_%r.arc LOG_ARCHIVE_DEST_1 = ‘LOCATION = /disk1/archive’ DB_RECOVERY_FILE_DEST_SIZE = 50G DB_RECOVERY_FILE = ‘/u01/oradata’ Which statement is true about the archived redo log files?()AThey are created only in the location specified by the LOG_ARCHIVE_DEST_1 parameter.BThey are created only in the Fast Recovery Area.CThey are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and in the default location $ORACLE_HOME/dbs/arch.DThey are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and the location specified by the DB_RECOVERY_FILE_DEST parameter.

多选题You performed the RMAN database backup with the KEEP option. Which two statements are true regarding this backup?()AThe backup contains data files, the server parameter file,and the control file even if the control file autobackup is disabled.BThe KEEP option overrides the configured retention policy.CThe backup contains only data files and archived redo log files.DThe KEEP option is an attribute of an individual backup piece.

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.

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.

单选题Every Sunday, consistent backups are performed on your database. Because of a user error, you performed an incomplete recovery on Tuesday and opened the database with the RESETLOGS option. A user error occurs again on Thursday, which necessitates an incomplete recovery. Sunday’s backup is the most recent backup available.What would you do in this scenario?()A recovery cannot be performed because a backup was not performed after the last incomplete recoveryB restore all the files from Sunday’s backup, and then recover up to the point in time when the RESETLOGS operation was performed on TuesdayC restore all the files from Sunday’s backup, and open the database to reset the database to the point in time when the backup was performed on SundayD restore all the files from Sunday’s backup, and then perform an incomplete recovery up to the point in time when the user error occurred on Thursday

单选题You have configured flash recovery area in your database and you set the following Initialization parameters for your database instance:   LOG_ARCHIVE_DEST 1 = ,,LOCATION=/disk1/arch MANDATORY’  LOG _ARCHIEVE_DEST 2 = ,,LOCATION=/disk2/arch’ LOG_ARCHIVK_DEST_3 = ,,LOCATION=/diSk3/arch  LOG_ARCH1VK_DEST_4 = ’ LOCATION=/disk4/arch’  LOG_ARCHIVE_MIN-SUCCEED_DEST = 2   While the database instance is functional,you realized that the destination set by the  LOG_ARCHIVE_DEST_I parameter Is not available for the archived redo log file to be created in. All redo log groups have been used.  What happens in an event of log switch?()A The online redo log file Is not allowed to be overwritten.B The archived redo log files are written to the flash recovery area until the MANDATORY destination is made available.C The database instance will crash because the archived redo log file cannot be created in a destination set as MANDATORY.D The destination set by the LOG_ARCHIVE_DEST_1 parameter is ignored and the archived redo log files are created in the next two available locations to guarantee archive log success.

单选题The database is running in ARCHIVELOG mode. Examine the initialization parameters and theirvalues set to enable archiving on your database server:  LOG_ARCHIVE_FORMAT = arch_%t_%s_%r.arc  LOG_ARCHIVE_DEST_1 = ’LOCATION = /disk1/archive’  DB_RECOVERY_FILE_DEST = ’/u01/oradata’  DB_RECOVERY_FILE_DEST_SIZE = 20G  Which statement is true regarding the archived redo log files()AIt will be created on the local file system.BIt will be created only in the Flash Recovery Area.CIt will be created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and the defaultlocation $ORACLE_HOME/dbs.DIt will be created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and locationspecified by the DB_RECOVERY_FILE_DEST parameter.

单选题You database is running an ARCHIVELOG mode. The following parameter are set in your database instance: LOG_ARCHIVE_FORMAT = arch+%t_%r.arc LOG_ARCHIVE_DEST_1 = ‘LOCATION = /disk1/archive’ DB_RECOVERY_FILE_DEST_SIZE = 50G DB_RECOVERY_FILE = ‘/u01/oradata’ Which statement is true about the archived redo log files?()AThey are created only in the location specified by the LOG_ARCHIVE_DEST_1 parameter.BThey are created only in the Fast Recovery Area.CThey are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and in the default location $ORACLE_HOME/dbs/arch.DThey are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and the location specified by the DB_RECOVERY_FILE_DEST parameter.

单选题You are using Oracle Database 10g. Which statement regarding an incomplete recovery is true?()A You do not need to restore all the data files.B You do not need to open the database with the RESETLOGS operationC You do not need to perform a full backup after the RESETLOGS operation.D You do not need to recover all the data files to the same system change number (SCN).

单选题In your database, you may be forced to perform a recovery using the RESETLOGS option during which the redo logs would be reset to sequence number 1. You want to avoid the overwriting of old log files. Which archived log file name format ensures this? ()A%t_%s.dbfBarch_%t.arcCarch_%d.arcDarch_%t_%d.arcEarch_%d_%s_.dbfFarch_%t_%s_%r.arc

单选题Which statement is true regarding the Archiver (ARCn) process,archived log files,and recovery? ()AA database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure. BDuring recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files. CAfter each write to an archived log, the mandatory background process ARCn writes its log sequence number and the first and last SCN number within the log sequence to the control file. DAt database recover time, and archived redo log is uniquely identified for recovery use by its redo thread number and destination ID number retrieved from the control file.

单选题You are using Oracle Database 10g. The LOG_ARCHIVE_FORMAT parameter is set to  ’LOG%t_%s_%r.dbf’.  Why is %r used in the file name format?()Ato uniquely identify the archived log files with the restore operationBto uniquely identify the archived log files with the redo log group numberCto uniquely identify the archived log files for each incarnation of the databaseDto uniquely identify the archived log files with the number of recovery operations performed