Oracle 1Z0-083 Database Admin II Practice Exam
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Oracle 1Z0-083 Oracle Database Administration II
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Start NowAbout the Oracle 1Z0-083 Database Admin II Certification
The Oracle 1Z0-083 Database Admin II certification is designed for professionals who manage advanced database operations such as performance tuning and data security. As technology evolves and industry demands grow more complex; this credential validates your ability to apply real-world skills and knowledge using Oracle tools and frameworks. Earning the certification positions you as a trusted expert, capable of solving high-impact challenges and contributing to secure, scalable, and efficient systems.
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Test Your Knowledge of Oracle 1Z0-083 Database Admin II
Question #1
A senior DBA is tasked with configuring RMAN for backup automation.
Which command enables persistent RMAN settings?
A) CONFIGURE RETENTION POLICY
B) SET BACKUP POLICY
C) ALTER RMAN CONFIG
D) DEFINE BACKUP STRATEGY
Solution
Correct answers: A – Explanation:
CONFIGURE RETENTION POLICY is used to set persistent backup rules. Others are invalid or non-existent.
Question #2
A database is experiencing slow performance due to high I/O.
Which feature helps reduce disk reads for frequently accessed data?
A) Database Buffer Cache
B) Redo Log Buffer
C) Shared Pool
D) Large Pool
Solution
Correct answers: A – Explanation:
Database Buffer Cache stores frequently accessed blocks in memory, reducing disk I/O. Other pools serve different purposes.
Question #3
A DBA needs to recover a dropped table.
Which feature allows recovery without restoring a backup?
A) Flashback Table
B) Undo Retention
C) Recycle Bin
D) LogMiner
Solution
Correct answers: C – Explanation:
Recycle Bin retains dropped objects for recovery. Flashback Table requires privileges and setup, Undo is for transactions.
Question #4
A user reports that their session was terminated unexpectedly.
Which view helps identify the cause?
A) V$SESSION
B) DBA_ALERT_HISTORY
C) V$ACTIVE_SESSION_HISTORY
D) V$TERMINATED_SESSIONS
Solution
Correct answers: C – Explanation:
V$ACTIVE_SESSION_HISTORY provides recent session activity. V$SESSION shows current sessions, others are invalid.
Question #5
A DBA wants to restrict access to a pluggable database.
Which command achieves this?
A) ALTER PLUGGABLE DATABASE CLOSE
B) DROP PLUGGABLE DATABASE
C) LOCK PLUGGABLE DATABASE
D) DISABLE PDB ACCESS
Solution
Correct answers: A – Explanation:
ALTER PLUGGABLE DATABASE CLOSE restricts access. DROP deletes it, LOCK and DISABLE are invalid commands.
Question #6
A database is in ARCHIVELOG mode.
Which command performs a full backup using RMAN?
A) BACKUP DATABASE
B) EXPORT FULL DATABASE
C) ARCHIVE DATABASE
D) SAVE DATABASE STATE
Solution
Correct answers: A – Explanation:
BACKUP DATABASE is the correct RMAN command. EXPORT is for data pump, others are invalid.
Question #7
A DBA needs to monitor long-running queries.
Which view provides execution time details?
A) V$SQL_MONITOR
B) V$SESSION_LONGOPS
C) V$SQLAREA
D) DEFINE BACKUP STRATEGY
Solution
Correct answers: B – Explanation:
V$SESSION_LONGOPS tracks operations exceeding 6 seconds. V$SQL_MONITOR is also useful but less granular.
Question #8
A user requests a clone of a production database for testing.
Which feature supports this with minimal downtime?
A) Data Guard
B) RMAN Duplicate
C) Transportable Tablespaces
D) GoldenGate
Solution
Correct answers: A – Explanation:
CONFIGURE RETENTION POLICY is used to set persistent backup rules. Others are invalid or non-existent.
Question #9
A DBA wants to ensure redo logs are archived.
Which parameter must be set?
A) LOG_ARCHIVE_DEST
B) ARCHIVELOG_MODE
C) ENABLE_ARCHIVE
D) LOGGING
Solution
Correct answers: A – Explanation:
LOG_ARCHIVE_DEST specifies the archive location. ARCHIVELOG_MODE is a status, others are invalid.
Question #10
A database upgrade is planned.
Which tool validates upgrade readiness?
A) DBUA
B) RMAN
C) SQL*Plus
D) Pre-Upgrade Checks
Solution
Correct answers: D – Explanation:
Pre-Upgrade Checks identify compatibility issues. DBUA performs the upgrade, RMAN and SQL*Plus are not validation tools.
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