In your test database， you find that a user’s session is executing a lot of SQL statements， resulting in the generation of a large number of trace files. While investigating the reason， you find that SQL trace has been enabled at the instance level.
You want to disable SQL trace， remotely， only for that user session to reduce the volume of trace data being generated.
How do you achieve this objective？（）
A.by setting the SQL_TRACE parameter to FALSE in the parameter file
B.by using DBMS_MONITOR.SESSION_TRACE_DISABLE to disable the tracing for the user session
C.by setting the SQL_TRACE parameter to FALSE by using the ALTER SYSTEM command in the user session
D.by setting the SQL_TRACE parameter to FALSE by using the ALTER SESSION command in the user session
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A.fixed views
B.the alert log file
C.the parameter file
D.the server parameter file
E.dynamic performance views
The backup retention policy is configured as RECOVERY WINDOW 2. You executed the following command in Recovery Manager （RMAN） against your database：
RMAN> REPORT OBSOLETE;
What would you see in the output？（）
A.a list of all the expired backups and copies
B.a list of all those files that have been deleted in the last two days
C.a list of all those files that have been recovered within the last two days
D.a list of backups and copies that are outside the range covered by the current retention policy
A.backups that can be deleted
B.stored scripts in the recovery catalog
C.backup sets and image copies that are obsolete
D.only the most recent backup sets or image copies
E.backups that do not have the AVAILABLE status in RMAN repository
You executed the following command in Recovery Manager （RMAN） against your Oracle 10g database：
RMAN> REPORT NEED BACKUP days 3;
What would be the output of this command？（）
A.a list of files that require a backup within three days
B.a list of files that have not been backed up for three days
C.a list of files that RMAN recommends be backed up only once in every three days， based on low volatility
D.a list of files for which a backup has already been performed and may need a backup after three days
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
Your database is functioning in NOARCHIVELOG mode. Your database contains 15 tablespaces. You want to use Recovery Manager （RMAN） to perform backups.
Which two backups would you be able to perform when the database is being accessed by users？（）
A.backup of offline tablespaces
B.backup of readonly tablespaces
C.backup of systemcritical tablespaces
D.backup of online， locally managed tablespaces
E.backup of read/write dictionarymanaged tablespaces
View the Exhibit.
You executed the following command to perform a backup of the USERS tablespace：
RMAN> BACKUP
TABLESPACE USERS;
Which three types of files are backed up？ （）
A.password file
B.online redo log files
C.the current control file
D.archived redo log files
E.the current server parameter file
F.all the data files belonging to the USERS tablespace
G.data files belonging to the USERS tablespace and all the default tablespaces
View the Exhibit.
You executed the following command to perform a backup of the USERS tablespace： RMAN> BACKUP TABLESPACE USERS;
Which type of backup would this command perform？（）
A.backup set
B.image copy
C.incremental backup
D.None; the user receives an error indicating that the backup type must be specified.
You execute the following command to perform a backup by using Recovery Manager （RMAN）： RMAN> run
{allocate channel c1 type sbt;
backup datafile 1;
}
The command errors out. A part of the error message is as follows：
RMAN03009： failure of allocate command on c1 channel
ORA19554： error allocating device， device type： SBT_TAPE， device name：
What could explain why the statement failed？（）
A.sbt is not a valid device type.
B.Media Management Library was not loaded.
C.The sbt device cannot be used for data file backups.
D.No path was defined in the ALLOCATE CHANNEL command.
E.The channel is currently being used by another RMAN session.
You observe that the senior database administrator always uses the following command when connecting to Recovery Manager （RMAN）， and then starts executing commands to backup the database files：
$ rman target /
What would be the effect of this command？（）
A.RMAN would use the current operating system location to place the backup.
B.RMAN would use the control file of the target database to maintain the backup.
C.RMAN would use the recovery catalog of the target database to maintain the backup.
D.RMAN would use the control file of the target database to maintain the backup metadata.
E.RMAN would use the recovery catalog of the target database to maintain the backup metadata.
最新试题
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？ （）
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？（）
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？（）
For an incomplete recovery， which four backup types can be used by Recovery Manager （RMAN） to restore data files？ （）
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？ （）
You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）
You performed an incomplete recovery on your Oracle Database 10g database using the following command： SQL> RECOVER DATABASE 2 UNTIL TIME ’20040805：12：10：03’ 3 USING BACKUP CONTROLFILE; In which situation would the above recovery be required？（）
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？（）
One of the tablespaces is readonly in your database. The loss of all control files forced you to recreate the control file. Which operation do you need to perform after recreating the control file and opening the database？（）
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？（）