单项选择题By using the transaction identifier provided by()for a particular row change, you can use the Flashback Transaction Query to see the operation performed by the transaction. 

A. Flashback Table
B. Flashback Database
C. Flashback Version Query
D. The RMAN REPORT command
E. The DBA_PENDING_TRANSACTIONS view


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1.单项选择题What effect should the loss of an index tablespace have on an Oracle instance that is running?()

A. instance hangs
B. instance gets aborted
C. instance continues running
D. instance gets restarted automatically

2.单项选择题

Why would you use the following FLASHBACK TABLE command?()
FLASHBACK TABLE emp TO TIMESTAMP (’11:45’.’hh12:mi’);

A. to undo the changes made to the EMP table since the specified time
B. to restore the EMP table that was wrongly dropped from the database
C. to view the transactions that have modified the EMP table since the specified time
D. to view the changes made to the EMP table for one or more rows since the specified time

6.多项选择题Which two statements are correct regarding the Oracle Flashback Drop feature? ()

A. Recycle bin exists for the tables only in non-SYSTEM, locally managed tablespaces.
B. You can flash back a dropped table provided row movement has been enabled on the table.
C. If you drop an index before dropping its associated table, then the recovery of the index is not supported when you flash back the dropped table.
D. When you execute the DROP TABLESPACE? INCLUDING CONTENTS command, the objects in the tablespace are places in the recycle bin.
E. When a dropped table is moved to the recycle bin, only the table is renamed to a system-generated name; its associated objects and constraints are not renamed.
F. If you drop a table that is protected by the recycle bin, then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.

7.单项选择题You lost a temporary file that belongs to the default temporary tablespace in your database. From the options provided, which approach would you take to solve the problem?()

A. flash back the database
B. import the temporary tablespace from the last export
C. restore all the data files and temporary files from the last full database backup and perform a recovery
D. not perform a recovery, but create a new temporary tablespace, make it the default temporary tablespace and then drop the old tablespace

8.多项选择题

These are the details about V$FLASHBACK_DATABASE_STAT: SQL> DESC v$FLASHBACK_DATABASE_STAT 
Name                    Null?              Type 
------------- -------- -------------- 
BEGIN_TIME                               DATE 
END_TIME                                 DATE 
FLASHBACK_DATA                        NUMBER 
DB_DATA                                  NUMBER 
REDO_DATA                               NUMBER 
ESTIMATED_FLASHBACK_SIZE             NUMBER 
Which two statements regarding the V$FLASHBACK_DATABASE_STATview aretrue? ()

A. BEGIN_TIME is the time at which Flashback logging is enabled.
B. END_TIME is the time at which the query is executed on the view.
C. REDO_DATA is the number of bytes of redo data written during the interval.
D. This view contains information about flashback data pertaining to the last 24 hours.
E. FLASHBACK_DATA is the amount of flashback data generated since the database was opened.

9.单项选择题You were recently hired by Certkiller .com as a database administrator. You are asked to find out whether the currently functional listener process, named L1, has been password protected or not. You are not familiar with the file system of the new organization. How would you accomplish the task?()

A. by using the STATUS command of the Listener control utility
B. by using the STATUS L1 command of the Listener control utility
C. by using the SHOW RULES command of the Listener control utility
D. by using the SET PASSWORD command of the Listener control utility
E. by searching for the PASSWORD_LISTENER entry in the listener.ora file

10.多项选择题When performing a backup using Recovery Manager (RMAN), which four types of files can be backed up with the RMAN BACKUPcommand? ()

A. data file
B. password file
C. archivelog file
D. temporary file
E. online redo log file
F. the current control file
G. the tnsnames.ora file
H. current server parameter file

最新试题

In your database, all the tablespaces are locally managed. You started Recovery Manager (RMAN) using recovery catalog. The following commands are used in the process of recovering the database by using the backup control file: In what sequence would you use this process to perform the recovery?()

题型:单项选择题

You lost the PRODSTD tablespace, which was read/write. The tablespace was read­only when the last backup was performed. How would you recover the tablespace?()

题型:单项选择题

You are working on an Oracle Database 10g database. Because of data loss, you decided to perform a Flashback Database operation using the following command: SQL> FLASHBACK DATABASE TO TIMESTAMP(SYSDATE 5/24); Which two statements are true? ()

题型:多项选择题

The current time is 12:00 noon. You want to recover the USERS tablespace from a failure that occurred at 11:50 a.m. You discover that the only member of an unarchived redo log group containing information from 11:40 a.m. onwards is corrupt. With reference to this scenario, if you are not using Recovery Manager (RMAN), which recovery method would you use?()

题型:单项选择题

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?()

题型:单项选择题

Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error, you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process? ()

题型:多项选择题

You are connected to Recovery Manager (RMAN) without a recovery catalog. There is no copy of the control file available. You want to restore the control file from an autobackup. To retrieve the autobackup,you need the database ID (DBID). In which two sources would you find the DBID? ()

题型:多项选择题

Your database operates in ARCHIVELOG mode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence, 230, is not archived, and it contained information from 10:35 a.m. onwards. The current time is 11:00 a.m. Because of a disk crash, you executed the following command to perform an incomplete recovery: RMAN> RUN { 2> SET UNTIL SEQUENCE 230 THREAD 1; 3> ALTER DATABASE MOUNT; 4> RESTORE DATABASE; 5> RECOVER DATABASE; 6> ALTER DATABASE OPEN RESETLOGS;7> }; With reference to this scenario, which statement is true?()

题型:单项选择题

Your database is functioning in ARCHIVELOG mode. In which two situations would you perform a cancel­based recovery?()

题型:多项选择题

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?()

题型:多项选择题