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To succeed in the Oracle 1Z0-083 certification exam, candidates must have a strong understanding of database architecture, SQL, and PL/SQL. They should also be familiar with Oracle database management tools, such as Oracle Enterprise Manager and SQL*Plus. Additionally, candidates should have practical experience in administering Oracle databases, as the exam will test their ability to apply theoretical knowledge in real-world scenarios.

Oracle 1Z0-083 Exam covers a wide range of topics, including managing database storage structures, managing users and security, managing database performance, managing database backups and recovery, and managing database upgrades and patches. To prepare for the exam, candidates can take advantage of Oracle's official training courses, study guides, and practice exams.

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Oracle Database Administration II Sample Questions (Q70-Q75):

NEW QUESTION # 70
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 begins from the last checkpoint position that was calculated by the Database Writer before instance failure.
C. Recovery begins from the beginning of the CURRENT redo log group.
D. 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.
E. Recovery reads redo until the end of the redo thread. SMON rolls back any dead transactions, and then the datanase is opened.
F. Recovery reads redo until the end of the redo thread, and then opens the database. SMON then rolls back any dead transactions.

Answer: A,B,F

NEW QUESTION # 71
Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.)

A. The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.
B. The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.
C. The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.
D. By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.
E. The Oracle Grid Infrastructure installation must be owned by the grid user.
F. The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.

Answer: A,C

Explanation:
Explanation/Reference: https://docs.oracle.com/database/121/CWWIN/usrgrps.htm#CWWIN-GUID-6FD3C6AE-5A99-
4C6D-85D6-868CBA6F5DAE

NEW QUESTION # 72
Examine the RMAN commands:
RMAN> CONNECT TARGET "sbu@prod AS SYSBACKUP";
RMAN> CONNECT AUXILIARY "sbu@dup_db AS SYSBACKUP";
RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE DATABASE
PASSWORD FILE SECTION SIZE 400M;
Which statement is true about the DUPLICATE command?

A. It fails because there is no connection to a recovery catalog.
B. It succeeds only if the target database is in MOUNT state.
C. It fails because no parallel channels are allocated for the auxiliary database.
D. It succeeds and creates multisection backup sets that are used for active database duplication.

Answer: D

NEW QUESTION # 73
Choose three. Which three are true about recovery operations done without using Recovery Manager (RMAN)?

A. A lost index tablespace can be re-created without performing any recovery.
B. A lost TEMPFILE must always be re-created manually.
C. A lost PFILE can be re-created from alert.log using SQL*PLUS.
D. A lost password file can be manually re-created with the orapwd utility.
E. A lost password file can be re-created with SQL*PLUS.
F. A lost SPFILE can be recovered from memory using SQL*PLUS.

Answer: B,D,F

NEW QUESTION # 74
Choose two. You are managing this configuration: 1. CDB1 is a container database. 2. PDB1 and PDB2 are two pluggable databases in CDB1. 3. USER1.EMP is a table in PDB1 and USER2.DEPT is a table in PDB2 . CDB1 user SYS executes these commands after connecting successfully to PDB2: SQL> ALTER SESSION SET CONTAINER=pdb1; Session altered. SQL> INSERT INTO user1.emp VALUES (100, 'Alan' ,1) ; 1 row created. SQL> INSERT INTO user1.emp VALUES (101, 'Ben' ,1) ; 1 row created. SQL> ALTER SESSION SET CONTAINER=pdb2; Session altered. SQL> INSERT INTO user2.dept VALUES(1, 'IT'); Which two are true? Which two are true? (Choose two.)

A. The inserts on USER1.EMP were committed when the session connected to PDB2.
B. The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.
C. The inserts on USER1.EMP were committed when the session inserted a row into USER2. DEPT.
D. The insert on USER2.DEPT fails because of the active transaction in the parent container.
E. The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.
F. The inserts on USER1.EMP were rolled back when the session connected to PDB2
G. The insert on USER2.DEPT is uncommitted.

Answer: B,D

NEW QUESTION # 75
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