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单选题
You are maintaining your database in Oracle10g. On Tuesday at 8：00 A.M.， while starting the database， you discover that all the control files are missing. The backup of the full database was performed on Sunday at 6：00 P.M. Which type of recovery will you perform？（）
A
incomplete recovery
B
complete recovery
C
recovery using the Flashback Database feature
D
recovery using the export/import utility
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You are maintaining your database in Oracle10g. You are performing an incomplete recovery because the tablespace， DATA1， was dropped and purged from the Recycle Bin. After performing an incomplete recovery， you open the database with the RESETLOGS option. What will NOT be the impact of using the RESETLOGS option？（）A、 The log sequence for the database will restart from 1.B、 The log sequence number will be written to the control file.C、 The log sequence number will be written to the datafile headers.D、 The log sequence number will be written to the initialization parameter file.
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You are maintaining your database in Oracle10g. You set the value of the UNDO_RETENTION initialization parameter to zero in the initialization parameter file. What will be the impact of specifying this setting？（） A、 The database will not start.B、 The database will start but will not retain the undo data in the undo segment.C、 The database will start， and the undo segment will contain the undo data for at least one hour.D、 The database will start， and the undo segment will retain the undo data for at least 15 minutes.
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You are maintaining your database in Oracle10g. You find that the number of languages that should be supported in your database has increased. The character set of your database is UTF8. You decide to migrate your database to the AL16UTF16 national character set. How will you migrate your database from UTF8 to AL16UTF16？（） A、 by using the RMAN utilityB、 by using the export/import utilityC、 by using the ALTER DATABASE commandD、 by enabling the change tracking feature
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You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query？（）A、 VERSIONS_STARTSCNB、 VERSIONS_STARTTIMEC、 VERSIONS_XIDD、 VERSIONS_OPERATION
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You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup metadata information. You want to enable the reusable section of the control file to expand itself if the oldest record cannot be reused， and whenever a new record is added to the reusable section of the control file. Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME parameter？（）A、 ZeroB、 One or moreC、 NONED、 DEFAULT
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You are maintaining your production database in Oracle10g. You want the circular reuse records in the control file of the target database to be reused as required. Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter？（）A、 0B、 1C、 NONED、 DEFAULT
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You are maintaining your OLTP database in Oracle10g. While observing the performance of the database， you find that the log switch occurs more than once for every 20 minutes， affecting the database performance. Which factor is responsible for frequent log switches？（） A、the value of the UNDO_RETENTION initialization parameterB、the value of the optimal redo log file size provided by the Redo Logfile Size AdvisorC、the online redo log files sizeD、the number of redo log members in a group
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You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup information of your database. Which file can be used as a repository to store information regarding the RMAN backup？（）A、 online redo log filesB、 alert log filesC、 control fileD、 datafiles associated with the SYSTEM tablespace
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You are maintaining your database in Oracle10g. You are performing the backup by using the BACKUP AS BACKUPSET command at the RMAN prompt. Which file cannot be backed up by using the BACKUP AS BACKUPSET command？（）A、DatafilesB、 Current control fileC、 Server parameter file （spfile）D、 Password file
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You are maintaining your database in Oracle10g. While performing an incremental backup of the database， you want to back uponly those blocks that have changed since the last backup. Which file will you create to increase the performance of the backup operation while performing the incremental backup of the database？（）A、 redo log filesB、 password fileC、 control fileD、 change tracking file
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You are maintaining the PROD database for NetFx Corporation. You have configured controlfile autobackup in your database. At 6：00 P.M. on Monday， you issue the following command： RMANBACKUP DATABASE； At 8：00 A.M. on Tuesday， you are unable to start the database because all the control files are missing. You decide to restore the control files from the backup by using the RMAN RESTORE CONTROLFILE FROM AUTOBACKUP； command. Which operation should you perform before using the RMAN RESTORE CONTROLFILE FROM AUTOBACKUP； command？（）A、 Start the database in the MOUNT stage.B、 Back up the control file to trace.C、 Set the DBIDD、 Issue the RECOVER DATABASE command.
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
You are maintaining your database in Oracle10g. On Tuesday at 8：00 A.M.， while starting the database， you discover that all the control files are missing. The backup of the full database was performed on Sunday at 6：00 P.M. Which type of recovery will you perform？（）A、 incomplete recoveryB、 complete recoveryC、 recovery using the Flashback Database featureD、 recovery using the export/import utility
考题
You are maintaining your database in Oracle10g. You want to store the information about the backup of the database in the control file. You issue the following statement： SQLALTER SYSTEM SET CONTROL_FILE_RECORD_KEEP_TIME=400； What is the outcome of this statement？ （）A、 The statement will not execute successfully.B、 The statement will execute successfully， and the backups metadata will be maintained in the control file for 400 daysC、 The statement will execute successfully， and the backups metadata will be maintained in the recovery catalog for 400 days.D、 Backups will be deleted from the media after 400 days.
考题
单选题You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query？（）A
VERSIONS_STARTSCNB
VERSIONS_STARTTIMEC
VERSIONS_XIDD
VERSIONS_OPERATION
考题
单选题You are maintaining your OLTP database in Oracle10g. While observing the performance of the database， you find that the log switch occurs more than once for every 20 minutes， affecting the database performance. Which factor is responsible for frequent log switches？（）A
the value of the UNDO_RETENTION initialization parameterB
the value of the optimal redo log file size provided by the Redo Logfile Size AdvisorC
the online redo log files sizeD
the number of redo log members in a group
考题
单选题You are maintaining your database in Oracle10g. You are performing an incomplete recovery because the tablespace， DATA1， was dropped and purged from the Recycle Bin. After performing an incomplete recovery， you open the database with the RESETLOGS option. What will NOT be the impact of using the RESETLOGS option？（）A
The log sequence for the database will restart from 1.B
The log sequence number will be written to the control file.C
The log sequence number will be written to the datafile headers.D
The log sequence number will be written to the initialization parameter file.
考题
单选题You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup information of your database. Which file can be used as a repository to store information regarding the RMAN backup？（）A
online redo log filesB
alert log filesC
control fileD
datafiles associated with the SYSTEM tablespace
考题
单选题You are maintaining your database in Oracle10g. While performing an incremental backup of the database， you want to back uponly those blocks that have changed since the last backup. Which file will you create to increase the performance of the backup operation while performing the incremental backup of the database？（）A
redo log filesB
password fileC
control fileD
change tracking file
考题
单选题You are maintaining your database in Oracle10g. You are required to view the list of files that have not been backed up for the last seven days. Which RMAN command will you use？（）A
LIST commandB
CROSSCHECK commandC
REPORT commandD
SHOW command
考题
单选题Your database has a backup that was taken yesterday （Tuesday） between 13：00 and 15：00 hours. This is the only backup you have. You have lost all the archived redo logs generatedsince the previous Monday， but you have archived redo logs available from the previous Sunday and earlier. You now need to restore your backup due to database loss. To which point can you restore your database？（）A
13：00 on Tuesday.B
15：00 on Tuesday.C
Up until the last available archived redo log on Sunday.D
To any point； all the redo should still be available in the online redo logs.E
The database is not recoverable.
考题
单选题You are maintaining your database in Oracle10g. You set the value of the UNDO_RETENTION initialization parameter to zero in the initialization parameter file. What will be the impact of specifying this setting？（）A
The database will not start.B
The database will start but will not retain the undo data in the undo segment.C
The database will start， and the undo segment will contain the undo data for at least one hour.D
The database will start， and the undo segment will retain the undo data for at least 15 minutes.
考题
单选题You are maintaining your production database in Oracle10g. You want the circular reuse records in the control file of the target database to be reused as required. Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter？（）A
0B
1C
NONED
DEFAULT
考题
单选题You are maintaining your database in Oracle10g. You find that the number of languages that should be supported in your database has increased. The character set of your database is UTF8. You decide to migrate your database to the AL16UTF16 national character set. How will you migrate your database from UTF8 to AL16UTF16？（）A
by using the RMAN utilityB
by using the export/import utilityC
by using the ALTER DATABASE commandD
by enabling the change tracking feature
考题
单选题You are maintaining your database in Oracle10g. You are performing the backup by using the BACKUP AS BACKUPSET command at the RMAN prompt. Which file cannot be backed up by using the BACKUP AS BACKUPSET command？（）A
DatafilesB
Current control fileC
Server parameter file （spfile）D
Password file
考题
单选题You are maintaining your database in Oracle10g. You have set the value of the STATISTICS_LEVEL initialization parameter to TYPICAL and the value of the FAST_START_MTTR_TARGET parameter to 900 seconds. To increase the performance of the database， you want to determine the optimal size of the online redo log files. Which tool enables you to determine the optimal size of the online redo log files？（）A
Oracle Enterprise ManagerB
The V$LOG viewC
The V$LOGFILE viewD
The V$FLASHBACK_DATABASE_LOGS view
考题
单选题You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup metadata information. You want to enable the reusable section of the control file to expand itself if the oldest record cannot be reused， and whenever a new record is added to the reusable section of the control file. Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME parameter？（）A
ZeroB
One or moreC
NONED
DEFAULT
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