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Oracle 1Z1-083 exam is a certification test that validates the skills and knowledge of database administrators in managing and maintaining Oracle databases. It is the second part of the Oracle Database Administration certification track and is designed for professionals who have already passed the first exam, 1Z1-082. The 1Z1-083 exam is a challenging and comprehensive assessment that covers a wide range of topics related to Oracle database administration.

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Oracle 1Z1-083 exam is a certification exam for professionals who want to prove their skills and knowledge in Oracle Database Administration. Passing 1Z0-083 exam can provide a significant boost to your career prospects, as it is widely recognized by employers and IT organizations around the world. 1Z0-083 Exam is the second level in the Oracle Database Administrator certification track, and it validates the skills required to effectively manage and maintain Oracle databases.

Oracle Database Administration II Sample Questions (Q147-Q152):

NEW QUESTION # 147
Which two are true about the Program Global Area (PGA) and its management in an Oracle database instance? (Choose two.)

A. PGA_AGGREGATE_LIMIT is a hard limit on the PGA size for any one session.
B. The private SQL area (UGA) is located in the System Global Area (SGA) when using dedicated servers.
C. Sorts and Hash Joins use PGA memory.
D. The private SQL area (UGA) is located in the System Global Area (SGA) when using shared servers.
E. The entire PGA is located in the System Global Area (SGA) when using shared servers.

Answer: A,B

NEW QUESTION # 148
You execute the following piece of code with appropriate privileges:
User SCOTT has been granted the CREATE SESSION privilege and the MGR role.
Which two statements are true when a session logged in as SCOTT queries the SAL column in the view and the table?

A. Data is redacted for the EMP.SAL column only if the SCOTT session does not have the MGR role set.
B. Data is redacted for EMP.SAL column only if the SCOTT session has the MGR role set.
C. Data is redacted for the EMP_V.SAL column only if the SCOTT session does not have the MGR role set.
D. Data is redacted for the EMP_V.SAL column only if the SCOTT session has the MGR role set.
E. Data is never redacted for the EMP_V.SAL column.

Answer: A,E

Explanation:
Note:
* DBMS_REDACT.FULL completely redacts the column data.
* DBMS_REDACT.NONE applies no redaction on the column data. Use this function for development testing purposes. LOB columns are not supported.
* The DBMS_REDACT package provides an interface to Oracle Data Redaction, which enables you to mask (redact) data that is returned from queries issued by low-privileged users or an application.
* If you create a view chain (that is, a view based on another view), then the Data Redaction policy also applies throughout this view chain. The policies remain in effect all of the way up through this view chain, but if another policy is created for one of these views, then for the columns affected in the subsequent views, this new policy takes precedence.

NEW QUESTION # 149
Which two are direct benefits of the multiprocess, multithreaded architecture of Oracle Database
12c when it is enabled?

A. Reduced physical I/O
B. Reduced logical I/O
C. Improved Serial Execution performance
D. Reduced CPU utilization
E. Reduced virtual memory utilization

Answer: D,E

NEW QUESTION # 150
Which three are true about the SQL Tuning Advisor? (Choose three.)

A. It builds SQL profiles for each poorly performing SQL statement to prevent regressions.
B. It considers all SQL statements being analyzed by the advisor task as a group.
C. It checks each query being analyzed for missing statistics.
D. It only recommends syntactic changes to SQL statements.
E. It checks each query being analyzed for stale statistics.
F. It can recommend semantic changes to SQL statements.

Answer: C,E,F

NEW QUESTION # 151
Examine these queries and their output:

An online RMAN backup of the CDB was taken an hour before Restore Point R1 was created. You want to recover PDB1 to Restore Point R1.
How do you achieve this?

A. This cannot be done due to the lack of a clean restore point.
B. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to CDB$ROOT.
C. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to PDB1.
D. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to CDB$ROOT.
E. Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using SQL while connected to PDB1.

Answer: E

NEW QUESTION # 152
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