You used the following command in Recovery Manager （RMAN） as part of the recovery process： RESTORE CONTROLFILE FROM AUTOBACKUP；
How does RMAN find the control file autobackup？（）
A. By using the trace file.
B. By using the alert log file.
C. By using the database ID
D. By using the server parameter file.
E. By using the V$CONTROLFILE view.
F. By using the autobackup format configuration setting.
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By mistake， you ran the batch job （for updating the BILL_DETAILS table） twice. You are not sure which rows in the BILL_DETAILS table were affected. You need to identify：
a） A list of changes made along with the transaction identifier of each change.
b） The necessary SQL statements to undo the erroneous changes.
Which option would you choose？（）
A. RMAN only.
B. Flashback Table only.
C. Flashback Version Query only.
D. Flashback Database and Flashback Transaction Query.
E. Flashback Version Query and Flashback Transaction Query.
A. The parallel degree limit for DB_GRP will be the minimum of all the incoming values.
B. The parallel degree limit for DB_GRP will be the maximum of all the incoming values.
C. The maximum estimated execution time for DB_GRP would be the most nonrestrictive of all incoming values.
D. If a session switched from the DB_GRP consumer group to another consumer group because it exceeded the prescribed switch time， then that session would not execute if the active session pool for the new consumer group was full.
E. Is a session switched from the DB_GRP consumer group to another consumer group because it exceeded the prescribed switch time， then that session would execute even if the active session pool for the new consumer group was full.
A. The redo log file should belong to an active group.
B. The redo log file should belong to an inactive group.
C. The redo log file should belong to the current group.
D. The redo log file can be dropped only if all the transactions are stopped.
E. Before a redo log file is dropped， it should be deleted from the operating system （OS）.
You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table， you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that：
a） No other user data in the database is affected.
b） The operation takes the minimum possible time.
Which option would you choose？（）
A. Use ROLLBACK command with SCN 663571.
B. Perform Flashback Transaction Query with SCN 663571.
C. Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571.
D. Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571.
A. Backup of offline tablespaces.
B. Backup of read-only tablespaces.
C. Backup of system-critical tablespaces.
D. Backup of online， locally managed tablespaces.
E. Backup of read/write dictionary-managed tablespaces.
A. Heap table
B. Object table
C. External table
D. Clustered table
E. Global temporary table
F. Index-organized table （IOT）
A. This instance is being used to manage the operating system files.
B. This instance is being used to manage the files of other databases.
C. This instance is being used to manage the instances of other databases.
D. This instance is being used to manage the background processes of other instances.
A. Recovery catalog
B. Oracle Enterprise Manager Repository
C. Automatic Workload Repository （AWR）
D. Oracle 10g Enterprise Manager Grid Control
E. Automatic Database Diagnostic Monitor （ADDM）
A. functions
B. package
C. procedure
D. database trigger
E. anonymous PL/SQL block
Exhibit： View the Exhibit.You have more than one table in the recycle bin having the same original name， DEPT2. You do not have any table with the nameDEPT2 in your schema. You executed the following command：PURGE TABLE dept2； Which statement is correct in this scenario？（）
A. All the tables having the same original name as DEPT2 will be purged from the recycle bin.
B. The table with dropscn = 1928151 （oldest dropscn） will be purged from the recycle bin.
C. The table with dropscn = 1937123 （most recent dropscn） will be purged from the recycle bin.
D. None of the tables will be purged because there are multiple entries with the same original name in the recycle bin.
最新试题
For an incomplete recovery， which four backup types can be used by Recovery Manager （RMAN） to restore data files？ （）
You have only two redo log groups and these groups get overwritten several times in a day. Your database operates in NOARCHIVELOG mode and usermanaged consistent backups are performed every Sunday night. On Thursday morning， you find that an important table has been dropped and purged. With reference to this scenario， up to what point in time can the data be recovered？（）
You lost the index tablespace in your database. You decided to recreate the index tablespace and the indexes in the tablespace. What methods can you use to recreate the indexes？（）
View the Exhibit and examine the Flashback Database architecture. Identify the missing component （shown with a "？"） in the Flashback Database architecture.（）
You noticed that the index tablespace in your database requires a recovery. However， instead of performing a media recovery， you decided to recreate the indexes in a new tablespace. Which two options would you use to reduce the time it takes to recreate the indexes？（）
Your database operates in ARCHIVELOG mode. Usermanaged consistent backups are performed every Sunday night. On Tuesday， client A drops a table at 8：00 a.m. as follows： SQL> DROP TABLE cust_ord PURGE; Table dropped. Client B executes a query at 9：00 a.m. on the same table as follows： SQL> SELECT * FROM cust_ord;SELECT * FROM cust_ord* ERROR at line 1： ORA00942： table or view does not exist Client B needs the dropped table and reports the problem to you. With reference to this scenario， which action should you take？（）
The loss of the control file forced you to recreate the control file. After recreating it and opening the database， you find that some of the data files are named as MISSINGnnnnn， where nnnnn is a fivedigit number starting with 0. What could be the possible reason？（）
You configured the flash recovery area in the database. Which two files would you expect to find in the flash recovery area？ （）
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 data file became corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file.Which method would you use for recovery？（）