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Oracle 1Z0-083 Exam is intended for database administrators, database architects, and other IT professionals who are responsible for managing, monitoring, and maintaining Oracle database systems. 1Z0-083 exam is also suitable for candidates who have completed the Oracle Database Administration I certification and wish to further enhance their skills and knowledge in Oracle database administration.
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Oracle 1Z1-083 is an exam designed for professionals who wish to demonstrate their knowledge and expertise in database administration. 1Z0-083 exam is a part of the Oracle Certified Database Administrator (OCDA) certification program and is considered an important step towards becoming an Oracle Certified Master. 1Z0-083 Exam aims to test the candidate's ability to manage and administer an Oracle database, including installation, configuration, backup and recovery, and performance tuning. Oracle Database Administration II Sample Questions (Q150-Q155):NEW QUESTION # 150
RMAN is connected to a target database instance and an auxilary instance. You execute 3625the command: RMAN> DUPLICATE TARGET DATABASE TO dupdb FROM ACTIVE DATABASE SECTION SIZE 1G; What is the outcome?
A. RMAN uses the push method to transfer image copies
B. RMAN uses the push method to transfer backup sets
C. RMAN uses the pull method to restore files using backup sets
D. RMAN uses the pull method to restore files using image copies
Answer: C
NEW QUESTION # 151
In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments. On further investigation, you f ind that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately?
A. Decreasing PCTUSED
B. Increasing the number of DBWN process
C. Using Automatic Segment Space Management (ASSM)
D. Decreasing PCTFREE
E. Increasing db_buffer_cache based on t he V$DB_CACHE_ADVICE recommendation
Answer: C
NEW QUESTION # 152
Which two are true about flashback features in Oracle Database 19c and later releases?
A. Flashback logs are monitored and proactively deleted when beyond the retention period defined in db_flashback_retention_target before there is space pressure.
B. Flashback logs are monitored and proactively deleted when beyond the retention period defined in DB_flashback_retention_TARGET only after there is space pressure
C. Flashback logs are monitored for being older than the retention period defined in db_flashback_retention_target and can be deleted by an administrator written event trigger.
D. Flashback logs are automatically purged whenever the value
Of DB_FLASHBACK_RETENTION_TARGET is changed.
E. Flashback logs are automatically purged when db_flashback_retention_target is set lower than the time they have already been retained.
Answer: A,C
NEW QUESTION # 153
Which three are true about monitoring waits for sessions and services? (Choose three.)
A. V$SESSION_WAIT and V$SESSION both contain details of the event on which a session is currently waiting.
B. V$SESSION_EVENT displays all waits for all past and existing sessions if the wait has occurred at least once for a session.
C. V$SESSION_WAIT and V$SESSION both contain details of the event on which a non-waiting session last waited.
D. V$SERVICE_EVENT displays all waits for all services if the wait has occurred at least once for a service.
E. V$SESSION_WAIT_CLASS displays waits broken down by wait class only for waiting sessions.
F. V$SESSION_EVENT displays all waits for all past sessions if the wait has occurred at least once for a session.
Answer: C,E,F
NEW QUESTION # 154
Which two are true about Oracle Grid Infrastructure for a Standalone Server? (Choose two.)
A. It requires Oracle Automatic Storage Management (ASM) components to be installed separately.
B. The CSS daemon runs from the Grid Infrastructure home.
C. It supports volume management, file system, and automatic restart capabilities.
D. It can manage database resources on the server where it is installed or on a different server.
E. It must be installed before the Oracle database software is installed.
Answer: B,C
Explanation:
Oracle Grid Infrastructure for a standalone server includes Oracle Restart and Oracle Automatic Storage Management.
If you install Oracle Grid Infrastructure for a standalone server and then create your database, then the database is automatically added to the Oracle Restart configuration. Oracle Restart automatically restarts the database when required.
If you install Oracle Grid Infrastructure for a standalone server on a host computer on which a database already exists, then you must manually add the database, the listener, the Oracle ASM instance, and other components to the Oracle Restart configuration before you are able to configure automatic database restarts.