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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Performance Management	- SQL performance tuning - Automatic Workload Repository (AWR) and diagnostics
Database Backup and Recovery	- RMAN configuration and backup strategies - Database recovery techniques
Storage and Space Management	- Segment management - Tablespaces and datafiles
Security Management	- User management and privileges - Database auditing and encryption
Database Architecture and Administration	- Multitenant container database (CDB/PDB) concepts - Oracle Database architecture components

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Oracle Database Administration II Sample Questions (Q166-Q171):

NEW QUESTION # 166
Which two statements are true about encrypted backups performed by using RMAN?

A. Transparent encryption of backups uses an encryption wallet.
B. A password encryption of backups uses the password while creating and restoring backups.
C. Image copy backups can be created by using password encryption.
D. A database uses the same encryption key for every encrypted backup.
E. Encrypted backups can only be written to disk.

Answer: A,B

NEW QUESTION # 167
After implementing full Oracle Data Redaction, you change the default value for the number data type as follows:
SQL> SELECT NUMBER_VALUE FROM REDACTION_VALUES_FOR_TYPE_FULL;
NUMBER_VALUE
-------------------------
SQL> EXEC DBMS_REDACT.UPDATE_FULL_REDACTI0N_VALUES(-1)
PL/SQL procedure successfully completed.
SQL> select number_value from redaction_values_for_type_full;
NUMBER VALUE
------------------------
After changing the value, you notice that FULL redaction continues to redact numeric data with a zero.
What must you do to activate the new default value for numeric full redaction?

A. Re-create redaction policies that use FULL data redaction.
B. Re-connect the sessions that access objects with redaction policies defined on them.
C. Restart the database instance.
D. Re-enable redaction policies that use FULL data redaction.
E. Flush the shared pool.

Answer: C

Explanation:
About Altering the Default Full Data Redaction Value
You can alter the default displayed values for full Data Redaction polices. By default, 0 is the redacted value when Oracle Database performs full redaction (DBMS_REDACT.FULL) on a column of the NUMBER data type. If you want to change it to another value (for example, 7), then you can run the DBMS_REDACT.UPDATE_FULL_REDACTION_VALUES procedure to modify this value.
The modification applies to all of the Data Redaction policies in the current database instance.
After you modify a value, you must restart the database for it to take effect.

NEW QUESTION # 168
Which two are true about common objects? (Choose two.)

A. They can be created only in CDB$ROOT.
B. They can exist in CDB$ROOT and an application root.
C. They can be extended data-linked in CDB$ROOT.
D. They can be created only in an application root.
E. They can exist in user-defined schemas only in application containers.
F. They can be only metadata-linked in an application container.

Answer: B

NEW QUESTION # 169
Examine this configuration:
1. CDB1is a container database.
2. PDB1 and PDB2are pluggable databases in CDB1.
3. PDB1 and PDB2are OPENin READ WRITEmode.
You execute these commands successfully:

Which two are true? (Choose two.)

A. Uncommitted transactions in CDB1and PDB1have been rolled back.
B. CDB1is shut down.
C. PDB1is closed.
D. CDB1is in MOUNT state
E. Uncommitted transactions in PDB1have been rolled back.

Answer: C,D

NEW QUESTION # 170
Choose two. Which two are true about backup set compression using RMAN default compression?

A. Compression can be done only for locally managed tablespaces.
B. Unused blocks below the high water mark are backed up.
C. Binary compression adds CPU overhead to backup operations.
D. Compressed backups cannot have a section size defined.
E. Compressed backups can be written only to media.

Answer: C,D

NEW QUESTION # 171
......

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