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Oracle 1Z0-083 exam covers topics such as Oracle Database Architecture, Backup and Recovery, Database Security, Query Optimization, and Performance Tuning. It also includes advanced features such as Oracle Multitenant Architecture, Oracle Database In-Memory, and Oracle Exadata Database Machine. Passing 1Z0-083 Exam demonstrates a candidate's proficiency in managing these advanced features and their ability to handle complex database administration tasks.

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Oracle 1Z0-083 certification is highly valued in the IT industry and recognized globally. It demonstrates that the candidate has the expertise and skills required to manage and administer Oracle Database 19c effectively. Oracle Database Administration II certification also validates the candidate's ability to support critical business applications that rely on Oracle Database.

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Oracle Database Administration II Sample Questions (Q260-Q265):

NEW QUESTION # 260
Choose three. Which three are true about the Oracle Optimizer?

A. It can re-optimize execution plans after previous executions detect suboptimal plans.
B. It considers object statistics when generating execution plans for SQL statements.
C. It can only use SQL Plan Directives tied to the SQL statement for which a plan is being generated.
D. It considers the filters in WHERE clauses when generating execution plans for SQL statements.
E. It updates stale object statistics in the Data Dictionary.
F. It obeys all hints.

Answer: A,D,E

NEW QUESTION # 261
A database is configured in ARCHIVE LOG mode. Full RMAN backups are taken and no backup to trace has been taken of the control file. A media failure has occurred. In which two scenarios is complete recovery possible? (Choose two.)

A. after losing an archived log from before the most recent backup
B. after losing an archived log from after the most recent backup
C. when any archived log from, before, or after the most recent backup is corrupt.
D. after losing all copies of the control file
E. after losing the SYSTEM tablespace

Answer: A,E

NEW QUESTION # 262
Choose two. Which two are true about Lockdown profiles in a container database (CDB) and its pluggable databases (PDBs)?

A. A PDB Lockdown profile can be created in an application root.
B. A PDB Lockdown profile can be created in a regular PDB.
C. A Lockdown profile created from a base Lockdown profile is always automatically modified if the profile on which it is based is modified.
D. A Lockdown profile created from a base Lockdown profile is never automatically modified if the profile on which it is based is modified.
E. A PDB Lockdown profile can be created in CDB$ROOT .

Answer: A,E

NEW QUESTION # 263
Examine this output:

Which two are true? (Choose two.)

A. Any PDB not specified in the plan will be able to use a maximum of 16.5% of the available system resources.
B. Any PDB not specified in the plan will be unable to execute statements in parallel.
C. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.
D. PDB1 is always limited to 40% of the available system resources regardless of demand.
E. PDB3 can use all available parallel execution processes at times.
F. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.

Answer: B,C

NEW QUESTION # 264
A database is configured in archivelog mode.
Full RMAN backups are taken daily and no backup to trace has been taken of the control file.
A media failure has occurred.
In which two scenarios is complete recovery possible?

A. when any archived log from, before, or after the most recent backup is corrupt
B. after losing an archived log from before the most recent backup
C. after losing the system tablespace
D. after losing an archived log from after the most recent backup
E. after losing all copies of the control file

Answer: B

NEW QUESTION # 265
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