A. The collection level for the AWR should be set to BASIC
B. The moving window size must be less than Undo Retention
C. The moving window size should be greater than the Automatic Workload Repository (AWR) retention period
D. The moving window size should be equal to or less than the Automatic Workload Repository (AWR) retention period
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A. The plan baselines can be evolved over time to produce better performance.
B. The newly generated plans are directly placed into the SQL plan baseline without being verified.
C. The new SQL statements initially run with the plans that are known to produce good performance under standard test configuration.
D. The optimizer does not generate new plans for the SQL statements for which the SQL plan baseline has been imported.
The following databases are registered in the base recovery catalog: PROD1, PROD2, and PROD3. The database user CATOWNER owns the base recovery catalog. You want a new user VPC1 to have access to only the PROD1 database and create a virtual private catalog.
Given below are some of the commands required to achieve this:
1.SQL> GRANT recovery_catalog_owner TO vpc1;
2.RMAN> CONNECT CATALOG vpc1/password@catdb;
3.RMAN> GRANT CATALOG FOR DATABASE prod1 TO vpc1;
4.RMAN> CONNECT CATALOG catowner/password@catdb;
5.RMAN> CREATE VIRTUAL CATALOG;
What is the correct sequence in which the commands have to be executed?（）
A. 1, 4, 5, 2, 3
B. 1, 4, 3, 2, 5
C. 4, 5, 2, 3, 1
D. 2, 3, 4, 5, 1
E. 1, 4, 2, 3, 5
In your database, the LDAP_DIRECTORY_SYSAUTH initialization parameter has been set to YES and the users who need to access the database as DBAs have been granted SYSDBA enterprise role in Oracle Internet Directory (OID). SSL and the password file have been configured. A user SCOTT with the SYSDBA privilege tries to connect to the database instance from a remote machine using the command:
Which authentication method would be used first?（）
A. authentication by password file
B. authentication by using certificates over SSL
C. authentication by using the Oracle Internet Directory
D. authentication by using the local OS of the database server
A. It updates the existing SQL profiles with current statistics
B. It makes the statistics information available to GATHER_STATS_JOB
C. It initiates the statistics collection process by running GATHER_STATS_JOB
D. It logs a warning message in the alert log so that the DBA can perform statistics collection manually
View the Exhibit for some of the parameter settings. You start a session and issue the following command:
SQL>CREATE INDEX emp_ename ON emp(ename) TABLESPACE users INVISIBLE;
What is the outcome of the above command?（）
A. The index is not used by the optimizer but is maintained during DML operations.
B. The index is not used by the optimizer and is not maintained during DML operations.
C. The index is used by the optimizer only if a hint is specified in the query statement and is maintained during DML operations.
D. The index is used by the optimizer only if a hint is specified in the query statement but is not maintained during DML operations.
You perform the following activities during the database upgrade from Oracle Database 10g to Oracle Database 11g:
1. Capture plans for a SQL workload into a SQL Tuning Set (STS) before upgrade.
2. Load these plans from the STS into the SQL plan baseline immediately after the upgrade.
What is the reason for performing these activities? （）
A. to minimize plan regression due to the use of a new optimizer version
B. to completely avoid the use of new plans generated by a new optimizer version
C. to prevent plan capturing when the SQL statement is executed after the database upgrade
D. to keep the plan in the plan history so that it can be used when the older version of the optimizer is used
A. To create and execute an RMAN stored script, you must use a recovery catalog.
B. When executing a stored script and a command fails, the remainder of the script is executed, and a message is written to the alert log file.
C. RMAN stored scripts can always be executed against any target database that is registered in the recovery catalog.
D. When you execute a stored script, it always executes using the persistent channel settings previously set with the CONFIGURE command.
A. Segment Advisor
B. SQL Access Advisor
C. Undo Advisor
D. SQL Tuning Advisor
Observe the following warning in an RMAN session of your database instance:
WARNING: new failures were found since last LIST FAILURE command
Which statement describes the scenario that must have produced this warning?（）
A. The CHANGE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository(ADR)
B. The VALIDATE DATABASE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR)
C. The ADVISE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE
D. The RECOVER command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE command was executed
A. Its entries are specific to a single database.
B. It contains file systems that have been mounted by Direct NFS.
C. It is globally available to all Oracle 11g databases on the machine.
D. It contains file systems that have been mounted by the kernel NFS system.
最新试题
Which two commands never trigger an implicit rebalancing within the disk group?（）
Indentify two advantages of using recovery catalog instead of the control file of the database in Recovery Manager (RMAN)？（）
The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. Which statement is true while performing a tape backup in an RMAN session?（）
Tape streaming is not happening while performing RMAN tape backup. On investigation, you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to the tape drive fast enough.What could be a solution to make tape streaming happen during the backup?（）
You are using Recovery Manager (RMAN) with a recovery catalog to back up your production database. The backups and the archived redo log files are copied to a tape drive on a daily basis. Because of media failure, you lost your production database completely along with the recovery catalog database. You want to recover the target database and make it functional. You consider performing the following steps to accomplish the task:Which option illustrates the correct sequence that you must use?（）
Examine the parameter setting in your database:Which statement is correct about the database?（）
Which two statements are true about the Automatic Diagnostic Repository (ADR)?（）
What does the DB_FLASHBACK_RETENTION_TARGET parameter configure?（）
After you have restored and recovered a database to a new host by using a previously performed Recovery Manager (RMAN) backup, which is the best option you would consider for the new database?（）
Note the following statements that use flashback technology:1. FLASHBACK TABLE <table> TO SCN <scn>;2. SELECT * FROM <table> AS OF SCN 123456;3. FLASHBACK TABLE <table> TO BEFORE DROP;4. FLASHBACK DATABASE TO TIMESTAMP <timestamp>;5. SELECT * FROM <table> VERSIONS AS OF SCN 123456 AND 123999;Which of these statements will be dependent on the availability of relevant undo data in the undo segment?（）