PassSureExam Oracle 1Z0-083 Dumps (2025)

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Oracle Database Administration II Sample Questions (Q32-Q37):

NEW QUESTION # 32
Choose two. Which two are true about memory advisors?

A. If Automatic Shared Memory Management is enabled, both the SGA Advisor and PGA Advisor are always available.
B. If Manual Shared Memory Management is enabled, only the Shared Pool Advisor and Buffer Cache Advisor are available.
C. If Automatic Memory Management is enabled, no memory advisors are available.
D. If Automatic Memory Management is enabled, the Shared Pool Advisor and Buffer Cache Advisor are available to set the maximum size for these individual System Global Area components.
E. All memory advisors use data from Automatic Workload Repository.

Answer: A,E

NEW QUESTION # 33
Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.)

A. After the change, each existing PDB has to be reopened for the new undo mode to take effect.
B. Undo tablespaces existing in PDBs must be dropped before the change.
C. After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.
D. Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT.
E. After the change, any user with the required privilege can create an undo tablespace in the PDBs.
F. After the change, only one undo tablespace can exist in CDB$ROOT.

Answer: D,F

Explanation:
You can set a CDB in local UNDO mode either at CDB creation or by altering the CDB property. When the database property LOCAL_UNDO_ENABLE is FALSE, which is the default, there is only one UNDO tablespace that is created in the CDB root, and that is shared by all containers. When LOCAL_UNDO_ENABLE is TRUE, every container in the CDB uses local undo and each PDB must have its own local UNDO tablespace. To maintain ease of management and provisioning, UNDO tablespace creation happens automatically and does not require any action from the user. When a PDB is opened and an UNDO tablespace is not available, its automatically created.
Reference:
https://docs.oracle.com/en/database/oracle/oracle-database/18/multi/creating-and-configuring-a- cdb.html#GUID-12ADA04D-F81D-4579-A68C-0958CC7D6C2F

NEW QUESTION # 34
Which two are true about gathering optimizer statistics?

A. System statistics can be gathered only while connected to cdb$root.
B. Executing dbms_stats.gather_database_stats while connected to a PDBopened in read/write mode gathers object statistics for that PDB.
C. Executing dbms_stats.gather_database_stats while connected to cdb$root gathers object statistics in all open pluggable databases (PDBs).
D. Executing dbms_stats.gather_database_stats while connected to cdb$root gathers object statistics in all open PDBs except pdb$seed.
E. Executing dbms_stats.gather_database_stats while connected to cdb$root gathers object statistics only in cdbSroot.

Answer: C,E

NEW QUESTION # 35
You want to create a duplicate database DUP_DB from your production database PROD on the same host. The PROD database uses Automatic Storage Management (ASM) for storage.
Regular backups are taken using RMAN connected to a recovery catalog. You create an auxiliary instance and want to execute the command:
RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE;
What is a prerequisite for the successful execution of this command?

A. Flashback must be enabled for the PROD database.
B. RMAN must be connected to the target database instance and the auxiliary instance.
C. The target database must be in MOUNT state.
D. A most recent backup set of the PROD database must exist.

Answer: B

NEW QUESTION # 36
A database is configured in ARCHIVELOGmode.
Full RMAN backups are taken and no backup to trace has been taken of the control file.
A media failure has occurred.
In which two scenarios is complete recovery possible? (Choose two.)

A. after losing the SYSTEMtablespace
B. after losing all copies of the control file
C. after losing an archived log from after the most recent backup
D. after losing an archived log from before the most recent backup
E. when any archived log from, before, or after the most recent backup is corrupt.

Answer: D,E

NEW QUESTION # 37
......

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PassSureExam Oracle 1Z0-083 Dumps (2025)

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Oracle Database Administration II Sample Questions (Q32-Q37):

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