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Oracle 1Z1-083 certification exam covers a wide range of topics, including backup and recovery, performance tuning, security, and database architecture. Candidates are expected to have a deep understanding of these topics and to be able to apply their knowledge in real-world scenarios. 1Z0-083 Exam consists of 80 multiple-choice questions, and candidates have two hours to complete it.

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Oracle 1Z1-083 (Oracle Database Administration II) Certification Exam is an industry-recognized certification that validates the knowledge and skills required to manage and maintain Oracle databases. 1Z0-083 exam is intended for database administrators, database developers, and IT professionals who are responsible for managing and maintaining Oracle databases in a production environment. To pass the exam, candidates must demonstrate their expertise in database architecture and administration, backup and recovery strategies, database security, performance tuning, and database troubleshooting. Successful candidates earn the Oracle Database Administrator Certified Professional (OCP) certification, which is a valuable credential in the IT industry.

Oracle 1Z1-083 exam is a certification exam designed for IT professionals who want to validate their knowledge and skills in Oracle Database Administration. 1Z0-083 Exam is the second level in the Oracle Database Administration certification track and is intended for individuals who have already passed the Oracle Database Administration I exam. Passing 1Z0-083 exam demonstrates that you have the expertise and proficiency required to manage and maintain an Oracle Database system.

Oracle Database Administration II Sample Questions (Q243-Q248):

NEW QUESTION # 243
Which two are true about poorly performing SQL statements and their tuning in Oracle database instances? (Choose two.)

A. SQL statements doing joins always do more physical I/O than single table queries.
B. Poorly performing SQL statements can be tuned automatically by the Oracle server.
C. SQL statements doing only logical reads never require tuning because they do no physical I/O.
D. SQL statements performing many physical I/Os can always have their performance improved by creating indexes.
E. The solution that best optimizes one SQL statement can degrade the performance of others.

Answer: B,E

Explanation:
https://docs.oracle.com/cd/B28359_01/server.111/b28274/sql_tune.htm#PFGRF028

NEW QUESTION # 244
Which three actions are performed by the Oracle Preinstallation RPM, oracle-database-server-xxxx- preinstall, for Oracle Grid Infrastructure, where xxxx is the Oracle version and release? (Choose three.)

A. creating the OSDBA (dba) group
B. creating thte oraInventory (oinstall) group
C. creating the grid OS user
D. configuring the OS for Oracle Automatic Storage Management shared storage access
E. creating the oracleOS user
F. performing checks to ensure minimum configuration requirements for Oracle Grid Infrastructure are met

Answer: A,B,D

Explanation:
Explanation/Reference: https://docs.oracle.com/cd/E11882_01/install.112/e41961/prelinux.htm#CWLIN2932

NEW QUESTION # 245
Which three are performed by Oracle Automatic Storage Management (ASM) instances?
(Choose three.)

A. acting as an I/O server to read data file blocks from ASM disks on behalf of database server processes
B. managing extent allocation for Oracle database segments
C. managing Allocation Units (AUs) for disk group content
D. acting as an I/O server to write data file blocks to ASM disks on behalf of Database Writer processes (DBWn)
E. managing space allocation for Oracle ASM files
F. mounting disk groups

Answer: C,E,F

Explanation:
https://docs.oracle.com/cd/E11882_01/server.112/e18951/asmcon.htm#OSTMG94057

NEW QUESTION # 246
Which two are true about RMAN image copies?

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

Answer: A,B

NEW QUESTION # 247
A redaction policy was added to the SALcolumn of the SCOTT.EMPtable:

All users have their default set of system privileges.
For which three situations will data not be redacted? (Choose three.)

A. SCOTT sessions, because he is the owner of the table
B. SYSTEM sessions, regardless of the roles that are set in the session
C. SCOTT sessions, only if the MGR role is set in the session
D. SCOTT sessions, only if the MGR role is granted to SCOTT
E. SYSTEM session, only if the MGR role is set in the session
F. SYS sessions, regardless of the roles that are set in the session

Answer: B,D,F

NEW QUESTION # 248
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