Oracle 1Z0-082 Database Admin I Practice Exam

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Oracle 1Z0-082 Oracle Database Administration I

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About the Oracle 1Z0-082 Database Admin I Certification

The Oracle 1Z0-082 Database Admin I certification is designed for professionals who perform core database administration tasks including installation, backup, and recovery. 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 1Z0-082 Database Admin I

A junior DBA is tasked with creating a new user account in Oracle 19c.

Which SQL command should be used to create a user with a default tablespace?

A) CREATE USER username IDENTIFIED BY password DEFAULT TABLESPACE users
B) GRANT USER username DEFAULT TABLESPACE users
C) ALTER USER username SET DEFAULT TABLESPACE users
D) CREATE ACCOUNT username WITH DEFAULT TABLESPACE users

 

Correct answers: A – Explanation:
CREATE USER with DEFAULT TABLESPACE is the correct syntax. GRANT and ALTER are used for permissions and changes, not creation.

An Oracle instance is running but the database is not open.

Which command opens the database?

A) STARTUP NOMOUNT
B) STARTUP MOUNT
C) STARTUP OPEN
D) ALTER DATABASE OPEN

 

Correct answers: D – Explanation:
ALTER DATABASE OPEN transitions the database from mounted to open. STARTUP OPEN is not a valid command.

A DBA needs to back up the control file manually.

Which command performs this task?

A) BACKUP CONTROLFILE TO TRACE
B) BACKUP DATABASE CONTROLFILE
C) EXPORT CONTROLFILE
D) SAVE CONTROLFILE TO LOG

 

Correct answers: A – Explanation:
BACKUP CONTROLFILE TO TRACE creates a script to recreate the control file. Other options are invalid or non-existent.

A user reports slow query performance.

Which tool helps analyze SQL execution plans?

A) SQL Tuner
B) EXPLAIN PLAN
C) AUTOTRACE
D) SQL Profiler

 

Correct answers: B – Explanation:
EXPLAIN PLAN shows the execution path. AUTOTRACE combines statistics and plan, but EXPLAIN PLAN is more direct.

A DBA wants to restrict user access during maintenance.

Which mode should the database be started in?

A) NOMOUNT
B) MOUNT
C) RESTRICT
D) EXCLUSIVE

 

Correct answers: C – Explanation:
RESTRICT mode allows only users with RESTRICTED SESSION privilege. NOMOUNT and MOUNT are for startup phases.

A tablespace is running out of space.

Which action resolves this issue?

A) DROP TABLESPACE
B) ALTER TABLESPACE ADD DATAFILE
C) SHRINK TABLESPACE
D) RENAME TABLESPACE

 

Correct answers: B – Explanation:
ALTER TABLESPACE ADD DATAFILE increases capacity. DROP and SHRINK are destructive or invalid in this context.

A DBA needs to monitor memory usage.

Which view provides memory allocation details?

A) V$SGAINFO
B) V$MEMORY
C) V$BUFFER_POOL
D) CREATE ACCOUNT username WITH DEFAULT TABLESPACE users

 

Correct answers: A – Explanation:
V$SGAINFO shows memory allocation in the System Global Area. Others are less comprehensive or invalid.

A user cannot connect due to ORA-01033 error.

What does this error indicate?

A) Invalid login credentials
B) Database not open
C) Network timeout
D) User locked

 

Correct answers: A – Explanation:
CREATE USER with DEFAULT TABLESPACE is the correct syntax. GRANT and ALTER are used for permissions and changes, not creation.

A DBA wants to enable archiving.

Which command activates ARCHIVELOG mode?

A) ALTER DATABASE ARCHIVELOG
B) STARTUP ARCHIVELOG
C) ENABLE ARCHIVELOG MODE
D) SET ARCHIVELOG TRUE

 

Correct answers: A – Explanation:
ALTER DATABASE ARCHIVELOG enables archiving. Other options are syntactically incorrect.

A user needs to view all current sessions.

Which view should be queried?

A) V$SESSION
B) V$PROCESS
C) DBA_USERS
D) V$LOGIN

 

Correct answers: A – Explanation:
V$SESSION shows all active sessions. V$PROCESS shows background processes, DBA_USERS lists accounts, V$LOGIN is invalid.

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