Exam Code: 1z0-050 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Oracle Database 11g: New Features for Administrators
Certification Provider: Oracle
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2016 May 1z0-050 Study Guide Questions:

Q31. View the Exhibit exhibit1 to examine the series of SQL commands.


The baseline in the first row of the Exhibit is created when OPTIMIZER_MODE was set to FIRST_ROWS.

Which statement is true if the SQL query in exhibit1 is executed again when the value of OPTIMIZER_MODE is set to FIRST_ROWS?

A. The optimizer uses a new plan because none of the plans in the exhibit2 are fixed plans.

B. The optimizer uses the plan in the second row of the exhibit2 because it is an accepted plan.

C. The optimizer uses the plan in the first row of the exhibit2 because it is the latest generated plan.

D. The optimizer uses the plan in the first row of the exhibit2 because OPTIMIZER_MODE was set to FIRST_ROW during its creation.

Answer: B


Q32. Which three statements are true about the stages of database startup? (Choose three.)

A. Data files and redo log files can be renamed at the MOUNT stage.

B. Control files are required to bring the database to the NOMOUNT stage.

C. Data files and online redo log files are checked for consistency while opening the database.

D. Data files and redo log files are made available to users at the OPEN stage.

E. Control files are read at the OPEN stage for the location of data files.

Answer: ACD


Q33. You executed the following commands in an RMAN session for your database instance that has failures:

RMAN> LIST FAILURE;

After some time, you executed the following command in the same session:

RMAN> ADVISE FAILURE;

But there are new failures recorded in the Automatic Diagnostic Repository (ADR) after the execution of the last LIST FAILURE command. 

Which statement is true for the above ADVISE FAILURE command in this scenario?

A. It produces a warning for new failures before advising for CRITICAL and HIGH failures.

B. It ignores new failures and considers the failures listed in the last LIST FAILURE command only.

C. It produces an error with recommendation to run the LIST FAILURE command before the ADVISE FAILURE command.

D. It produces advice only for new failures and the failures listed in the last LIST FAILURE command are ignored.

Answer: A


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Q34. Examine the following values of the initialization parameters in the database having the SID ORCL:

BACKGROUND_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/bdump USER_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/udump CORE_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/cdump DIAGNOSTIC_DEST=

The environment variables have the following value:

ORACLE_BASE=/u01/app/oracle

ORACLE_HOME=/u01/app/oracle/product/11.1.0/db_1

What is the location of the Automatic Diagnostic Repository (ADR) home?

A. /u01/app/oracle

B. $ORACLE_HOME/log

C. $ORACLE_HOME/bdump

D. /u01/app/oracle/product/11.1.0/db_1

Answer: A


Q35. Evaluate the following function code:

CREATE FUNCTION get_dept_avg(dept_id NUMBER)

RETURN NUMBER

RESULT_CACHE RELIES_ON (EMPLOYEES)

IS

avgsal NUMBER(6);

BEGIN

SELECT AVG(SALARY)INTO avgsal

FROM EMPLOYEES

WHERE DEPARTMENT_ID = dept_id;

RETURN avgsal;

END get_dept_avg;

Which statement is true regarding the above function?

A. The cached result becomes invalid when any structural change is done to the EMPLOYEES table.

B. If the function execution results in an unhandled exception, the exception result is also stored in the cache.

C. Each time the function is invoked in a different session, the current result in the result cache gets overwritten.

D. If the function is invoked with a different parameter value, the existing result in the result cache gets overwritten by the latest value.

Answer: A


Q36. Which two statements are true with respect to the maintenance window? (Choose two.)

A. A DBA can enable or disable an individual task in all maintenance windows.

B. A DBA cannot change the duration of the maintenance window after it is created.

C. In case of a long maintenance window, all Automated Maintenance Tasks are restarted every four hours.

D. A DBA can control the percentage of the resource allocated to the Automated Maintenance Tasks in each window.

Answer: AD


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Q37. In which two aspects does hot patching differ from conventional patching? (Choose two.)

A. It consumes more memory compared with conventional patching.

B. It can be installed and uninstalled via OPatch unlike conventional patching.

C. It takes more time to install or uninstall compared with conventional patching.

D. It does not require down time to apply or remove unlike conventional patching.

E. It is not persistent across instance startup and shutdown unlike conventional patching.

Answer: AD


Q38. Which of the following information will be gathered by the SQL Test Case Builder for the problems pertaining to SQL-related problems? (Choose all that apply.)

A. ADR diagnostic files

B. all the optimizer statistics

C. initialization parameter settings

D. PL/SQL functions, procedures, and packages

E. the table and index definitions and actual data

Answer: BCE


Q39. You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours:

ALTER DISKGROUP dg01 SET ATTRIBUTE 'disk_repair_time' = '5h' 

To which disks in the disk group will the new value be applicable?

A. all disks in the disk group

B. all disks that are currently in OFFLINE mode

C. all disks that are not currently in OFFLINE mode

D. all disks in the disk group only if all of them are ONLINE

Answer: C


Q40. A PL/SQL procedure queries only those columns of a redefined table that were unchanged by the online table redefinition. 

What happens to the PL/SQL procedure after the online table redefinition?

A. It remains valid.

B. It becomes invalid for all options of online table redefinition but automatically gets revalidated the next time it is used.

C. It becomes invalid for all options of online table redefinition and is automatically recompiled during online redefinition of the table.

D. It becomes invalid only if the storage parameters have been modified and it automatically gets revalidated the next time it is used.

Answer: A