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Oracle 1Z0-083 Exam Syllabus Topics:

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

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Oracle Database Administration II Sample Questions (Q245-Q250):

NEW QUESTION # 245
Which two are true about backup set compression using RMAN default compression? (Choose two.)

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

Answer: C,E

NEW QUESTION # 246
Which four are true about a Recovery Manager (RMAN) duplication without a TARGET connection? (Choose four.)

A. The UNDO TABLESPACE clause is always required when no connection exists to the TARGET instance.
B. RMAN SBT-based backups of the database to be duplicated can be used by the auxiliary instance.
C. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is opened.
D. The NOREDO clause can be used if the backups of the database being duplicated were taken when the database was in ARCHIVE LOG mode.
E. The UNDO TABLESPACE clause is always required when no connection exists to the recovery catalog and the TARGET database is closed.
F. RMAN "pushes" the backups of the database to be duplicated over the network to the auxiliary instance.
G. The NOREDO clause must be used if the backups of the database being duplicated were taken when the database was in NOARCHIVELOG mode.
H. RMAN disk-based backups of the database to be duplicated can be used by the auxiliary instance.

Answer: B,E,G,H

NEW QUESTION # 247
Which are three of the steps taken by Database Configuration Assistant (DBCA) to clone a remote pluggable database (PBD) starting from Oracle 19c? (Choose three.)

A. creating a database link from CDB$ROOT in the remote database to be cloned to CDB$ROOT in the local database
B. automatically dropping the database link to the remote database if it already exists
C. opening the cloned PDB
D. creating a new empty PDB in the local database from PDB$SEED
E. creating a database link from CDB$ROOT in the local database to CDB$ROOT in the remote system that is to be cloned
F. creating a database link from CDB$ROOT in the remote database to the PDB in the local database
G. creating a database link from CDB$ROOT in the local database to the PDB in the remote system that is to be cloned

Answer: B,C,E

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/multi/cloning-a-pdb.html#GUID-
13FF2CE2-532C-4816-8E88-7A5A6E16A279
About Cloning a Remote PDB
When the source is a PDB is in a remote CDB, you must use a database link to clone the PDB into the local CDB.
The database link must exist in the local CDB (not the remote CDB). When you issue the CREATE PLUGGABLE DATABASE statement from the root of the local CDB, you must specify a database link to the remote CDB that contains the PDB being cloned in the FROM clause. The database link connects from the local CDB to either to the root of the remote CDB or to the remote source PDB.
The following figure illustrates how this technique creates a new PDB when the source PDB is remote.
https://docs.oracle.com/en/database/oracle/oracle-database/19/multi/cloning-a-pdb.html#GUID-
32AE49B1-13A7-4A4D-AB43-BA781ECA99D6

NEW QUESTION # 248
Which three are true about opatchauto?

A. It Is used to apply interim patches to Oracle Grid Infrastructure and Oracle Database home combinations.
B. It performs a shutdown and then a restart of all processes in both Oracle Grid Infrastructure and Oracle Database home during the patching process.
C. It applies patches in nonrolling mode by default.
D. Users must always input patch plans to opatchauto.
E. It requires the Oracle Grid Infrastructure and Oracle Database instances to be shut down before being invoked.
F. It must be invoked by a user with root user privileges.
G. Patchsets are applied via opatchauto.

Answer: C,E,G

NEW QUESTION # 249
Which two are true about the Program Global Area (PGA) and its management in an Oracle database instance? (Choose two.)

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

Answer: B,C

NEW QUESTION # 250
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