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2016 Jun 1Z0-052 free practice questions
Q11. You are working on a new Oracle Database 11g server, where only the software is installed and no database is created. You plan to create a database on this server using the Database Configuration Assistant (DBCA).
Some of the requirements set for your database creation task are:
1. Configure the database to operate in shared server mode.
2. Disable automatic maintenance tasks such as optimizer statistics collection.
3. Configure a naming method to help the remote user connect to the database instance.
4. Use Automatic Storage Management (ASM) for storing the database files.
5. Configure daily database backup to flash recovery area.
6. Configure Enterprise Manager Database Control to manage the database.
Which of these requirements can be met while creating the database?
A. 4 and 6
B. 2, 3, 4, and 6
C. 1, 2, 4, 5, and 6
D. 1, 2, 3, 4, 5, and 6
Q12. Note the functionalities of various background processes:
1: Perform recovery at instance startup.
2: Free the resources used by a user process when it fails.
3: Cleanup the database buffer cache when a process fails.
4: Dynamically register database services with listeners.
5: Monitor sessions for idle session timeout.
6: Cleanup unused temporary segments.
7: Record the checkpoint information in control file.
Which option has the correct functionalities listed for a background process?
A. Checkpoint (CKPT): 1, 2, 5
B. System Monitor (SMON): 1, 6
C. Process Monitor (PMON): 4, 6, 7
D. Database Writer (DBWR): 1, 3, 4
Q13. Which two statements are true about the Automatic Database Diagnostic Monitor (ADDM)? (Choose two.)
A. The ADDM requires at least four AWR snapshots for analysis
B. The ADDM runs after each AWR snapshot is collected automatically by MMON
C. The results of the ADDM analysis are stored in the Automatic Workload Repository (AWR)
D. The ADDM analysis provides only diagnostics information but does not provide recommendations
E. The ADDM calls other advisors if required, but does not provide recommendations about the advisors
Q14. You notice that the performance of the database has degraded because of frequent checkpoints.
Which two actions resolve the issue? (Choose two.)
A. Disable automatic checkpoint tuning
B. Check the size of the redo log file size and increase the size if it is small
C. Set the FAST_START_MTTR_TARGET parameter as per the advice given by the MTTR Advisor
D. Decrease the number of redo log members if there are more than one redo log members available in each redo log group
Q15. Your database instance is started using the server parameter file (SPFILE). You executed a
command to change the value of the LOG_BUFFER initialization parameter:
ALTER SYSTEM SET LOG_BUFFER=32M SCOPE=BOTH;
What would be the outcome of this command?
A. The command succeeds only if Automatic Memory Management is not enabled.
B. The command succeeds, but you need to restart the database for changes to take effect.
C. The command returns an error because the size of the redo log buffer cannot be changed dynamically.
D. The parameter value is changed and it comes into effect as soon as space becomes available in the System Global Area (SGA).
Up to the minute oca 1z0-052:
Q16. Examine the command:
SQL>ALTER USR skd ACCOUNT LOCK;
Which two statements are true after the command is executed? (Choose two.)
A. The SKD user cannot log in to the database instance
B. The objects owned by the SKD user are not accessible to any user
C. The other users can access the objects owned by the SKD user, on which they have access
D. The password for the SKD user expires and the user is forced to change the password at the next log in
Q17. You want to configure and schedule offline database backups to run automatically.
Which tool or utility would you use to achieve this?
A. The XML script
B. The PL/SQL script
C. The DBMS_SCHEDULER package
D. Enterprise Manager to schedule the backup
Q18. The TRANS_SUMMARY table contains product-wise transaction details that get updated with every transaction in the system. Each row has cumulative transaction details of a single product and every product is identified by a product code, which is the primary key.
As part of the archival process, the company wants to transfer the rows in the TRANS_SUMMARY table to the TRANS_SUMMARY_DUP table at the end of every quarter of the year. Along with existing products, the company deals with many new products during every quarter.
Which method is best suited for this quarterly data transfer?
A. Using the MERGE command
B. Using the SQL*Loader utility
C. Using the correlated UPDATE command
D. Using the INSERT command to perform bulk operation
Q19. Your database is open and the LISTENER listener is running. The new DBA of the system stops the listener by using the command: LSNRCTL> STOP
What happens to the sessions that are presently connected to the database instance?
A. The sessions are able to perform only queries
B. The sessions are not affected and continue to function normally
C. The sessions are terminated and the active transactions are rolled back
D. The sessions are not allowed to perform any operations till the listener is started
Q20. View the Exhibit and examine the setting for a table.
Which statement is true about the PCTFREE setting for the table?
A. It sets the minimum percentage of a data block to be reserved to contain chained rows from other blocks.
B. It sets the minimum percentage of a data block to be reserved as free space before the server prevents inserts into the block.
C. It sets the minimum percentage of a data block to be reserved to contain the bitmap used to maintain the free block information.
D. It sets the minimum percentage of a block that can be used for row data plus overhead before new rows are added to the block.
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