Oracle Oracle Database 1Z0-052 Questions & Answers

• Question 21:

  View the Exhibits and examine lock waits. Users HR and SH complain that their transactions on one of the application tables, EMP, are waiting for response.

  Which action would you take to release the lock and enable users HR and SH to continue with their transactions?

  07 (exhibit):

  

  08 (exhibit):

  

  A. Kill the session of the user SCOTT with session ID118.

  B. Issue manual checkpoint using the ALTER SYSTEM command.

  C. Modify the profile used by user SCOTT to reduce the CONNECT_TIME limit.

  D. Flush the Shared Pool to remove the SQL statement causing "wait" in memory.

  Correct Answer: A

• Question 22:

  You created a profile APP_USER and assigned it to the users. After a month, you decide to drop the profile. Some user sessions are currently connected to the database instance and are using the APP_USER profile.

  This command is used to drop the profile:

  SQL> DROP PROFILE app_user;

  Which statement describes the result?

  A. The command produces an error.

  B. The profile is dropped and current user sessions use the DEFAULT profile immediately.

  C. The profile is dropped and only the subsequent user sessions use the DEFAULT profile.

  D. The profile is dropped, the sessions are terminated, and the subsequent user sessions use the DEFAULT profile.

  Correct Answer: A

• Question 23:

  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

  Correct Answer: B

• Question 24:

  You plan to configure the new Oracle Database 11g installation by performing these tasks:

  -Use Automatic Storage Management (ASM) as the storage option.

  -

  Use Oracle Enterprise Manager Database Control to manage the database.

  -

  Provide the same password for SYS, SYSTEM, SYSMAN, and DBSNMP accounts during the installation.

  -Configure the database to send email notifications. Some tools available to you for installation are:

  1: Oracle Universal Installer (OUI)

  2: Database Configuration Assistant (DBCA)

  3: Database Upgrade Assistant (DBUA)

  4:

  Oracle Net Configuration Assistant Which tools would you use for this installation?

  A.

  2

  B.

  3

  C.

  1 and 2

  D.

  3 and 4

  E.

  1,2 and 4

  Correct Answer: E

• Question 25:

  Which three descriptions are correct about the effects of the TRUNCATE command on a table? (Choose three.)

  A. The corresponding indexes for the table are also truncated.

  B. Delete triggers on the table are fired during the execution of the TRUNCATE command.

  C. The child table is truncated when the TRUNCATE command is applied on the parent table.

  D. The highwater mark (HWM) is set to point to the first usable data block in the table segment.

  E. No undo or very little undo data is generated during the execution of the TRUNCATE command.

  Correct Answer: ADE

• Question 26:

  The tnsnames.ora file has an entry for the service alias ORCL as follows:

  ORCL =

  ( DESCRIPTION =

  (ADDRESS = (PROTOCOL = TCP)(HOST = 10.156.24.216)(PORT = 1521))

  (CONNECT_DATA =

  (SERVER = DEDICATED)

  (SERVICE_NAME = orcl.oracle.com)

  )

  )

  The TNSPING command executes successfully when tested with ORCL, but you are not able to connect to

  the database instance with the following command:

  SQL> CONNECT scott/tiger@orcl

  What could be the reason for this?

  A. The listener is not running on the database node.

  B. The TNS_ADMIN environmental variable is set to a wrong value.

  C. The orcl.oracle.com database service is not registered with the listener.

  D. The DEFAULT_DOMAIN parameter is set to a wrong value in the sqlnet.ora file.

  Correct Answer: C

• Question 27:

  Which two statements are true about the Automatic Workload Repository (AWR)? (Choose two.)

  A. All AWR tables belong to the SYSTEM schema

  B. The AWR contains systemwide tracing and logging information

  C. The snapshots collected by the AWR are accessible through data dictionary views

  D. The snapshots collected by the AWR are used by self-tuning components in the database

  Correct Answer: CD

• Question 28:

  The user SCOTT owns the CUST table that is placed in the SALES tablespace. The user SCOTT opens a

  session and executes commands as follows:

  SQL> INSERT INTO cust VALUES(101, 'JACK');

  1 row created.

  SQL> INSERT INTO cust VALUES(102, 'SMITH');

  1 row created.

  As a DBA, you execute the following command from another session:

  ALTER TABLESPACE sales READ ONLY;

  Which statement is true regarding the effect of this command on the transaction in Scott's session?

  A. The command fails as a transaction is still pending.

  B. The transaction in Scott's session is rolled back and the tablespace becomes readonly.

  C. The command waits and the user SCOTT can execute data manipulation language (DML) statements only as part of the current transaction.

  D. The command hangs until all transactions on the objects in the tablespace commit or rollback, and then the tablespace is placed in readonly mode.

  Correct Answer: D

• Question 29:

  Identify three situations in which you would NOT be able to drop a tablespace. (Choose three.)

  A. when the tablespace is online

  B. when the tablespace has segments with data in it

  C. when the tablespace is a default permanent tablespace for the database

  D. when the tablespace contains a table that is currently being used by transactions

  E. when the tablespace contains undo data that is needed to rollback an uncommitted transaction

  Correct Answer: CDE

• Question 30:

  View the Exhibit. What would happen if Oracle Home is not empty?

  

  A. The installation will not be continued until the location is empty.

  B. The installation will proceed without overwriting the existing files.

  C. The installation can be continued, but the existing files will be overwritten.

  D. The installation terminates automatically after showing an error message.

  Correct Answer: A