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Q1. 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
Answer: B
Q2. Which three statements are true about logical structures of the Oracle database? (Choose three.)
A. Each segment contains one or more extents.
B. Multiple tablespaces can share a single data file.
C. A data block is the smallest unit of input/output (I/O) in data files.
D. It is possible to have tablespaces of different block sizes in a database.
E. Each data block in the database always corresponds to one operating system block.
Answer: ACD
Q3. 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
Answer: D
Q4. In which situation may the UNDO_RETENTION parameter be ignored, even if it is set to a value?
A. When the data file of the undo tablespace is autoextensible
B. When there are more than one undo tablespace available in the database
C. When the undo tablespace is of a fixed size and retention guarantee is not enabled
D. When the undo tablespace is autoextensible and retention guarantee is not enabled
Answer: C
Q5. View the Exhibit to examine the output produced by the following query at three different times since the database instance started and has experienced workloads of different capacities:
SQL> SELECT substr(component, 0, 10) COMP, current_size CS, user_specified_size US
FROM v$memory_dynamic_components
WHERE current_size!=0;
What do you infer from this?
Exhibit:
A. The database instance is running with manual PGA management.
B. The database instance is running with manual shared memory management.
C. The database instance has the MEMORY_TARGET value set to a nonzero value.
D. All sessions are connected to the database instance in dedicated mode, and no RMAN or parallel query operations have been performed.
Answer: C
Q6. Examine the values for the following initialization parameters:
FAST_START_MTTR_TARGET=0
LOG_CHECKPOINT_INTERVAL=0
Which two will be the implications of these values in your database? (Choose two.)
A. The SGA advisor will be disabled
B. The MTTR advisor will be disabled
C. Automatic checkpoint tuning will be disabled
D. Checkpoint information will not be written to the alert log file
Answer: BC
Q7. You are using flat files as the data source for one of your data warehousing applications. To optimize the application performance, you plan to move the data from the flat files to clustered tables in an Oracle database. While migrating the data, you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into the Oracle database?
A. Use the external table population.
B. Use the Oracle Data Pump export and import utility.
C. Use the conventional path data load of the SQL*Loader utility.
D. Use the INSERT INTO...SELECT command to load the data.
Answer: C
Q8. Examine the following command that is used to create a table:
Which two statements are true about the effect of the above command? (Choose two.)
A. A CHECK constraint is created on the OID column
B. A NOT NULL constraint is created on the OID column
C. The ORDERS table is the only object created in the USERS tablespace
D. The ORDERS table and a unique index are created in the USERS tablespace
E. The ORDERS table is created in the USERS tablepsace and a unique index is created on the
OID column in the SYSTEM tablespace
Answer: BD
Q9. These are points that describe the contents of different memory components:
1: Descriptive information or metadata about schema objects that are queried by using SQL statements
2: The runtime area for data manipulation language (DML) or data definition language (DDL) statements
3: Results of SQL queries and PL/SQL functions
4: Executable forms of SQL cursors, PL/SQL programs, and Java classes
5: The information necessary to reconstruct changes made to the database by a transaction
Which of these will be stored in the Shared Pool if the necessary configurations are done?
A. 1 and 2
B. 2 and 5
C. 1,3, and 4
D. 3,4 and 5
E. 1,2,3 and 4
Answer: C
Q10. In your database instance, the STATISTICS_LEVEL initialization parameter is set to BASIC.
What is the impact of this setting?
A. Optimizer statistics are collected automatically.
B. Only timed operating system (OS) statistics and plan execution statistics are collected.
C. The snapshots for the Automatic Workload Repository (AWR) are not generated automatically.
D. Snapshots cannot be collected manually by using the DBMS_WORKLOAD_REPOSITORY package.
E. The Oracle server dynamically generates the necessary statistics on tables as part of query optimization.
Answer: C
Q11. The session of user SCOTT receives the following error after executing an UPDATE command on the EMP table:
ERROR at line 1:
ORA-00060: deadlock detected while waiting for resource
On investigation, you find that a session opened by user JIM has a transaction that caused the deadlock.
Which two statements are true regarding the session of SCOTT in this scenario? (Choose two.)
A. The session is terminated after receiving the error and JIM can continue with his transaction.
B. SCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction.
C. The session is rolled back after receiving the error and JIM can continue with his transaction.
D. SCOTT has to reexecute the last command in the transaction after he commits the transaction.
Answer: BD
Q12. Identify two situations in which you can use Data Recovery Advisor for recovery. (Choose two.)
A. The database files are corrupted when the database is open
B. The user has dropped an important table that needs to be recovered
C. The archived redo log files are missing for which the backup is not available
D. The database is not opening because the required database files are missing
Answer: AD
Q13. In which of the scenario will the DBA perform recovery? (Choose all that apply.)
A. The alert log file is corrupted
B. A tablespace is accidentally dropped
C. One of the redo log members is corrupted
D. A database user terminates the session abnormally
E. The hard disk on which the data files is stored is corrupted
Answer: BE
Q14. While observing the index statistics, you find that an index is highly fragmented, thereby resulting in poor database performance. Which option would you use to reduce fragmentation without affecting the users who are currently using the index?
A. Validate the index structure using the ANALYZE .... INDEX command
B. Rebuild the index using the ALTER INDEX ..... REBUILD ONLINE command
C. Change the block space utilization parameters using the ALTER INDEX command
D. Deallocate the unused space in the index using the ALTER INDEX ... DEALLOCATE UNUSED command
Answer: B
Q15. You execute this command to drop the ITEM table, which has the primary key referred in the ORDERS table:
SQL> DROP TABLE scott.item CASCADE CONSTRAINTS PURGE;
Which two statements are true about the effect of the command? (Choose two.)
A. No flashback is possible to bring back the ITEM table.
B. The ORDERS table is dropped along with the ITEM table.
C. The dependent referential integrity constraints in the ORDERS table are disabled.
D. The dependent referential integrity constraints in the ORDERS table are removed.
E. The table definition of the ITEM table and associated indexes are placed in the recycle bin.
Answer: AD