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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Topic 1: Database Backup and Recovery	- Database recovery techniques - RMAN configuration and backup strategies
Topic 2: Performance Management	- Automatic Workload Repository (AWR) and diagnostics - SQL performance tuning
Topic 3: Database Architecture and Administration	- Multitenant container database (CDB/PDB) concepts - Oracle Database architecture components
Topic 4: Security Management	- Database auditing and encryption - User management and privileges
Topic 5: Storage and Space Management	- Segment management - Tablespaces and datafiles

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Oracle Database Administration II Sample Questions (Q209-Q214):

NEW QUESTION # 209
Which two are prerequisites for using FLASHBACK TABLE? (Choose two.)

A. The FLASHBACK ANY TABLE system privilege or the FLASHBACK object privilege must be granted to the table owner.
B. A table's indexes must be set to unusable before issuing the flashback.
C. A table's constraints must be disabled before issuing the flashback.
D. Row Movement must be enabled on the table being flashed back.
E. The FLASHBACK ANY TABLE system privilege or the FLASHBACK object privilege must be granted to the user performing the flashback.

Answer: A,E

NEW QUESTION # 210
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

A. A subset of the target database can be duplicated.
B. Duplication can be done by having the target database instance push copies to the auxiliary database instance.
C. A connection to the recovery catalog instance is always required.
D. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
E. A connection to an auxiliary instance is always required.
F. A connection to the target database instance is always required.
G. A new DBID is always created for the duplicated database.
H. A backup of the target database is always required.

Answer: A,B,D,E

Explanation:
A duplicate database is a copy of your target database. With the FOR STANDBY clause, it keeps the same unique database identifier(DBID); If FOR STANDBY not specified it creates a new DBID. The duplicate database can include the same content or only a subset from the source database. It can be in the same host or a separate host. The principal work of the duplication is performed by the auxiliary channels.These channels correspond to a server session on the auxiliary instance on the destination host for backup based duplication. For active database duplication the target channels perform the work of pushing data file copies to the auxiliary instance (if number of allocated target channels is greater than the number of allocated auxiliary channels).

NEW QUESTION # 211
Which statement describes the significance of the CHANGE FAILURE command in RMAN? (Choose all that apply.)

A. It is used to change failure priority only for HIGH or LOW priorities.
B. It is used to execute the advised repair script.
C. It is used to explicitly close the open failures.
D. It is used to inform the database about the repair after the repair script executes.
E. It is used to change failure priority only for the CRITICAL priority.

Answer: A,C

NEW QUESTION # 212
Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.)

A. A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.
B. A snapshot copy PDB can be created from a stand-alone clone PDB.
C. A PDB snapshot is always a full copy of the source PDB.
D. A PDB snapshot is always a sparse copy of the source PDB.
E. A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.
F. A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.
G. A PDB snapshot depends on a storage snapshot which can be stored on any file system.

Answer: A,B

Explanation:
G:
https://docs.oracle.com/en/database/oracle/oracle-database/18/multi/cloning-a-pdb.html#GUID- F26C8A55-2465-475A-905A-83BD2E68AE6E and then create a SNAPSHOT COPY PDB from the standalone PDB.
C:
Storage requirements depend on the setting of the CLONEDB initialization parameter:
CLONEDB=FALSE
The underlying file system for the source PDB files must support storage snapshots. Such file systems include Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Direct NFS Client storage. Oracle Exadata supports snapshot copy functionality on ASM configured with sparse ASM grid disks.
CLONEDB=TRUE
The underlying file system for the source PDB files can be any local file system, network file system (NFS), or clustered file system that has Direct NFS enabled and supports sparse files.
Most UNIX systems meet these requirements, including Oracle ACFS and ZFS. However, when CLONEDB=TRUE, the source PDB must remain in open read-only mode when clones exist.

NEW QUESTION # 213
Which three actions are performed by Database Upgrade Assistant (DBUA)? (Choose three.)

A. It recompiles all stored PL/SQL code by using utlrp.sql.
B. It increases tablespace size, if required, to meet upgrade requirements.
C. It sets all user tablespaces to "read-only" before starting the upgrade.
D. It empties the RECYCLE BIN.
E. It performs prerequisite checks to verify if the Oracle database is ready for upgrade.
F. It removes the AUDSYS schema and the AUDIT_ADMIN and AUDIT_VIEWER roles

Answer: B,D,E

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/upgrd/upgrading-oracle- database-upgrade-assistant-dbua.html#GUID-8BDDF859-1638-45AC-824D-78FC8154847C
A). False. Only "...This option recompiles all INVALID PL/SQL modules after the upgrade is complete
B). True. "...The following is a list of examples of DBUA checks, and of actions that DBUA performs on the database: Empty database recycle bin..."
C). True. "... DBUA runs the Pre-Upgrade Information Tool as part of the prerequisite checks it performs before starting the upgrade..."
D). False. Only true for option Partial Backup "...Select among the following RMAN backup options:... Create a New Partial Offline RMAN Backup with User Tablespace. If you select this option, then user tablespaces are placed into read-only mode during the upgrade...."
E). False. These elements are not mentioned in the description of the DBUA process.
F). True. DBUA only continues if the check phase verifies that it can increase the size of tablespaces "... uses the following logic to modify or create new required tablespaces..."

NEW QUESTION # 214
......

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