Name: Oracle Database Administration II
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SKU: 1Z0-083
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Free Oracle 1Z0-083 Exam Actual Questions

The questions for 1Z0-083 were last updated On Apr 29, 2025

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Question No. 1

Which three are true about using Database Resource Manager in an Oracle multitenant environment?

(Choose three.)

AA PDB-level resource plan can limit session PGA memory.

BA CDB-level resource plan can limit PDB CPU utilization.

CA CDB-level resource plan can limit session CPU utilization.

DPDB-level resource plans can limit uncommitted UNDO per consumer group.

EA CDB-level resource plan can limit PDB UNDO use.

FA CDB-level resource plan is mandatory when using PDB-level resource plans.

Show Answer

Correct Answer: C, E, F

Question No. 2

Which three are true about using Database Upgrade Assistant (DBUA) to upgrade a database? (Choose three.)

AThe Pre-Upgrade Information Tool script is executed by DBUA.

BDBUA must be launched from the target Oracle Home.

CAll pluggable databases are automatically upgraded as part of a container database upgrade.

DA whole database backup must exist before upgrade

EThe database must be opened in read-only mode.

FMultiple databases with the same ORACLE_HOME can be upgraded simultaneously.

Show Answer

Correct Answer: A, C, D

Question No. 3

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

AA PDB snapshot is always a full copy of the source PDB.

BA PDB snapshot is always a sparse copy of the source PDB.

CA snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.

DA PDB snapshot depends on a storage snapshot which can be stored on any file system.

EA PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.

FA snapshot copy PDB depends on a storage snapshot which can be stored on any file system.

GA snapshot copy PDB can be created from a stand-alone clone PDB.

Show Answer

Correct Answer: C, G

snapshots.html#GUID-35B03C37-00BA-4945-BF20-9A7C4C541955

Question No. 4

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

AAfter the change, only a common user with the required privilege can create an undo tablespace in
CDB&ROOT.

BAny new PDB and existing PDBs are automatically configured to use the default undo tablespace in
CDB$ROOT.

CAfter the change, only one undo tablespace can exist in CDB$ROOT.

DAfter the change, any user with the required privilege can create an undo tablespace in the PDBs.

EUndo tablespaces existing in PDBs must be dropped before the change.

FAfter the change, each existing PDB has to be reopened for the new undo mode to take effect.
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.

Show Answer

Correct Answer: B, C

Question No. 5

Which four are true about performing Tablespace Point -In-Time Recovery (TSPITR) using Recovery Manager (RMAN)?

AIt can be performed using an auxiliary instance managed by a DBA.

BIt can be used to recover a truncated table.

CRMAN automatically adds any required tablespaces to the recovery set to make it self-contained.

DRMAN always includes tablespaces containing undo segments in the recovery set.

EIt can be performed repeatedly until the correct time is found without using an RMAN catalog.

Fflashback database must be enabled for it to work.

GIt can be used to recover a dropped tablespace.

HIt can be performed using an auxiliary instance managed by RMAN.

Show Answer

Correct Answer: A, E, F, H