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Oracle 1Z1-083 Certification Exam is designed to test candidates’ knowledge of advanced database administration concepts, such as database performance tuning, database security, and high availability solutions. It is an excellent opportunity for professionals who want to demonstrate their expertise in Oracle database administration.

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To prepare for the Oracle 1Z1-083 exam, candidates can enroll in training courses and study materials that cover the exam topics. These courses are designed to provide candidates with a comprehensive understanding of the exam content and help them develop the skills needed to pass the exam. Additionally, candidates can take practice exams to familiarize themselves with the exam format and identify areas where they need to improve.

Oracle 1Z0-083 exam, also known as the Oracle Database Administration II exam, is a certification exam designed for professionals seeking to enhance their skills in managing and administering Oracle databases. 1Z0-083 Exam is intended for individuals who have already passed the Oracle Database Administration I exam and have practical experience in administering Oracle databases. Passing 1Z0-083 exam is a requirement for obtaining the Oracle Certified Professional (OCP) certification.

Oracle Database Administration II Sample Questions (Q161-Q166):

NEW QUESTION # 161
Choose the best answer. On the 10th of August, you implement an incremental database backup strategy and configure a recovery window of five days. Level 0 backups are taken on the 10th, 17th, and 24th of August. Differential level 1 incremental backups are taken daily between the level 0 backups. Today is the 26th of August. Which backups will be obsolete?

A. all backups prior to 20th of August
B. all backups prior to 10th of August
C. all backups prior to 22nd of August
D. all backups prior to 17th of August
E. all backups prior to 24th of August

Answer: D

NEW QUESTION # 162
Choose two. In which two situations can you use Database Upgrade Assistant?

A. when the target and source database are on the same platform
B. when multiple pluggable databases in a container database have to be upgraded in a specific sequence
C. when a character set conversion is required during the upgrade
D. when the operating system (OS) needs to be changed as part of the upgrade
E. when the hardware platform needs to be changed as part of the upgrade

Answer: A,B

NEW QUESTION # 163
Which three are true about managing memory components in an Oracle database instance?
(Choose three.)

A. On Line Transaction Processing systems often use less Program Global Area than Decision Support Systems.
B. With Automatic Shared Memory Management, the database instance can increase the Large Pool size by reducing the Shared Pool size.
C. With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size.
D. Automatic Memory Management must be used together with locking the System Global Area into physical memory.
E. With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size.
F. Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart.

Answer: A,B,E

Explanation:
In AMM the instance exchanges memory between the SGA and the instance PGA as needed (B is correct) In ASMM the instance automatically distributes this memory among the various SGA components (JUST SGA) (A is correct, E incorrect) After a restart the instance return to the SGA values before the shutdown (not the initial values) (C incorrect)
https://docs.oracle.com/en/database/oracle/oracle-database/19/admin/managing- memory.html#GUID-8F54391B-D42A-4FDA-9D12-E1F81FD113EA F is also correct:
For OLTP systems, the PGA memory typically makes up a small fraction of the available memory, leaving most of the remaining memory for the SGA.
For DSS systems running large, memory-intensive queries, PGA memory can typically use up to
70% of the available memory.
https://docs.oracle.com/database/121/TGDBA/tune_pga.htm#TGDBA472

NEW QUESTION # 164
Choose three. Which three actions are mandatory post database upgrade?

A. Updating client scripts with the new Oracle home.
B. Migration to unified auditing.
C. Upgrading user tables that depend on Oracle-maintained abstract data types.
D. Setting threshold values for tablespace alerts.
E. Run OPatch commands from the new Oracle home.
F. Resetting passwords to enforce case-sensitivity.

Answer: A,C,E

NEW QUESTION # 165
Which two are true about Oracle instance recovery? (Choose three.)

A. Recovery begins from the last checkpoint position that was recorded in the control file by the checkpoint process (CKPT).
B. Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.
C. Recovery begins from the beginning of the CURRENT redo log group.
D. Recovery begins from the last checkpoint position that wascalculated by the Database Writer before instance failure.
E. Recovery reads redo until the end of the redo thread. SMON rollsback any dead transactions, and then the datanase is opened.
F. Recovery begins from the start of any ACTIVE redo log group or the start of the CURRENT log group if no other group is ACTIVE.

Answer: B,D,E

NEW QUESTION # 166
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