Online Access Free Oracle.1Z0-083.v2022-12-23.q164 Practice Test (Page 33)

1Z0-083 Exam Question 156

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.Sorts and Hash Joins use PGA memory.

C.The private SQL area (UGA) is located in the System Global Area (SGA) when using dedicated servers.

D.The entire PGA is located in the System Global Area (SGA) when using shared servers.

E.The private SQL area (UGA) is located in the System Global Area (SGA) when using shared servers.

1Z0-083 Exam Question 157

The USERS tablespace consists of data files 3 and 4 and must always be online in read/write mode. Which two are true about using RMAN to perform an open database back up of this tablespace? (Choose two.)

A.Backups can be done incrementally.

B.Backups can be taken only if the database is in ARCHIVE LOG mode.

C.Only consistent backups can be created.

D.Backups must be contained in backup sets.

E.Backups must be done incrementally.

F.The database must be registered in an RMAN catalog.

1Z0-083 Exam Question 158

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.Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to PDB1.

B.This cannot be done due to the lack of a clean restore point.

C.Execute FLASHBACK PLUGGABLE DATABASE PDB1 TO RESTORE POINT R1 by using RMAN while connected to CDB$ROOT.

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.

1Z0-083 Exam Question 159

Which three are true about managing memory components in an Oracle database instance? (Choose three.)

A.With Automatic Shared Memory Management, the database instance can increase the Large Pool size by reducing the Shared Pool size.

B.With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size.

C.Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart.

D.Automatic Memory Management must be used together with locking the System Global Area into physical memory.

E.With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size.

F.On Line Transaction Processing systems often use less Program Global Area than Decision Support Systems.

1Z0-083 Exam Question 160

Automatic Shared Memory Management is disabled for one of your database instances.
Some SQL statements perform poorly due to excessive hard parse activity, thereby degrading performance.
What would be your next step?

A.Run the Memory Advisor for the Program Global Area.

B.Run the Memory Advisor for the System Global Area.

C.Run the Memory Advisor for the shared pool.

D.Run the SQL Tuning Advisor.

E.Run the SQL Access Advisor.

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