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Oracle Database Administration II Exam covers a wide range of topics related to Oracle database administration, including database backup and recovery, database security, database performance tuning, and managing Oracle Grid Infrastructure. Candidates are expected to have a deep understanding of the Oracle database architecture, as well as hands-on experience in managing and maintaining Oracle databases. 1Z0-083 Exam consists of 85 multiple-choice questions and must be completed within 2.5 hours.

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The 1Z0-083 exam is a comprehensive exam that covers a wide range of topics related to Oracle database administration. This includes advanced topics such as database performance tuning, backup and recovery, high availability, and security management. Passing 1Z0-083 Exam demonstrates that the candidate has a deep understanding of Oracle database administration concepts and is capable of performing complex tasks related to database management.

Oracle Database Administration II Sample Questions (Q127-Q132):

NEW QUESTION # 127
Which two are true about Optimizer Statistics? (Choose two.)

A. They provide real-time data about schema objects.
B. They are gathered by the SQL Tuning Advisor.
C. By default, they are automatically gathered by a maintenance job.
D. They can be gathered by the DBMS_STATS package.
E. They are ignored by Optimizer if they are stale.

Answer: C,D

NEW QUESTION # 128
Which three are true about using Database Upgrade Assistant (DBUA) to upgrade a database?
(Choose three.)

A. All pluggable databases are automatically upgraded as part of a container database upgrade.
B. Multiple databases with the same ORACLE_HOME can be upgraded simultaneously.
C. The Pre-Upgrade Information Tool script is executed by DBUA.
D. DBUA must be launched from the target Oracle Home.
E. A whole database backup must exist before upgrade
F. The database must be opened in read-only mode.

Answer: A,C,D

Explanation:
D is not correct - you just need restore point and no backup is required E is not correct - DBUA will restart your DB in UPGRADE mode automatically F is not correct - you need to choose only one database

NEW QUESTION # 129
Examine this command:
$ rhpctl move database -sourcehome Oracle_home_path -destinationhome
Oracle_home_path
For which two purposes can you use this command? (Choose two.)

A. to switch back to the previous Oracle home as part of a rollback operation
B. to switch to a read-only Oracle home
C. to switch to a patched Oracle Database home
D. to switch the Oracle Database home when using a centralized Rapid Home Provisioning server
E. to switch an existing Oracle Database home to a newer release of Oracle software on the same server

Answer: C,E

Explanation:
Explanation/Reference: https://docs.oracle.com/en/database/oracle/oracle-database/18/cwadd/rapid-home- provisioning.html#GUID-856C7378-2510-4B3E-8BE1-B4D79DF4FE8B

NEW QUESTION # 130
Which two are true about RMAN image copies?

A. They can be used as a level 0 incremental backup.
B. They can be encrypted using Transparent Data Encryption (TDE).
C. They are the only backup option available for databases in NOARCHIVELOG mode.
D. They can only be written to disk.
E. They can be used as a level 1 incremental backup.

Answer: A,D

NEW QUESTION # 131
Choose three. Which three are true about corrupted data blocks and their recovery in an Oracle Database?

A. If a row lock is held by a nonexistent transaction, the block containing the row is logically corrupt.
B. A media corrupt block is one where the block is not formatted correctly.
C. DB_LOST_WRITE_PROTECT=TYPICAL causes extra logging overhead on the standby database.
D. If a row lock is held by a nonexistent transaction, the block containing the row is media corrupt.
E. DB_BLOCK_CHECKING=TRUE causes a check sum to be added to each data block to help detect physical or media corruption.
F. The ANALYZE TABLE VALIDATE STRUCTURE CASCADE command verifies that each table row has an index entry pointing to it.

Answer: A,C,F

NEW QUESTION # 132
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