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Oracle 1Z0-083 Exam Syllabus Topics:

Section	Objectives
Topic 1: Database Architecture and Administration	- Multitenant container database (CDB/PDB) concepts - Oracle Database architecture components
Topic 2: Storage and Space Management	- Tablespaces and datafiles - Segment management
Topic 3: Performance Management	- SQL performance tuning - Automatic Workload Repository (AWR) and diagnostics
Topic 4: Database Backup and Recovery	- Database recovery techniques - RMAN configuration and backup strategies
Topic 5: Security Management	- User management and privileges - Database auditing and encryption

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Oracle Database Administration II Sample Questions (Q277-Q282):

NEW QUESTION # 277
Choose two. Which two are true about creating RMAN backups for an Oracle container database?

A. Control file backups can be created while connected to a nonroot container.
B. Control file backups can be created while connected to the root container.
C. Archived Redo Log backups can be created while connected to an application root CDB.
D. The BACKUP TABLESPACE command can back up a PDB tablespace even if RMAN is connected to CDB$ROOT.
E. Online Redo Log backups can be created while connected to the root container.

Answer: B,D

NEW QUESTION # 278
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. Using Automatic Segment Space Management (ASSM)
B. Decreasing PCTFREE
C. Increasing the number of DBWN process
D. Increasing db_buffer_cache based on t he V$DB_CACHE_ADVICE recommendation
E. Decreasing PCTUSED

Answer: A

NEW QUESTION # 279
Choose three. Which three are true about interpreting Recovery Manager (RMAN) error stacks returned to standard output?

A. Media Management errors appear as a line with "sbtio" and a number.
B. If an RMAN command fails, the output will identify the channel ID where the failure occurred. D)Media Management errors appear as a line with "Additional information" and a number.
C. Some messages in the error stack are not errors.
D. If an RMAN command fails, the output will only identify the command that failed.
E. Media Management errors appear as a line with "sbtio".

Answer: A,C,D

NEW QUESTION # 280
Choose two. Which two are true about PDB archive files?

A. They contain a PDB manifest file and all the data files in uncompressed form for a PDB.
B. They must be created using the DBMS_PDB package.
C. They contain all the data files only in compressed form for a PDB.
D. They contain all the data files only in uncompressed form for a PDB.
E. They contain a PDB manifest file and all the data files in compressed form for a PDB.
F. DBMS_PDB.CHECK_PLUG_COMPATIBILITY can be run against a PDB archive.

Answer: E,F

NEW QUESTION # 281
Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)

A. ADDM can recommend shrinking the buffer cache.
B. ADDM performs its analysis only when a DBA requests it.
C. By default, MMON creates an AWR snapshot every 30 minutes.
D. ADDM can recommend extending the buffer cache.
E. By default, AWR snapshots are automatically purged after eight days.
F. AWR snapshots must be deleted when no longer required by ADDM.

Answer: A,E,F

Explanation:
Explanation/Reference: https://books.google.com.pk/books?id=DeQkU5E75DUC&pg=PA869&lpg=PA869&dq=By+default,
+AWR+snapshots+are+automatically+purged+after+eight
+days&source=bl&ots=DfoGmJfCMy&sig=ACfU3U0Pf2RgIs72LUV4HUzs5UIXI8sXEQ&hl=en&sa=X&ved=2ah UKEwjb8bKhu9noAhUwTxUIHRpYAuMQ6AEwA3oECAsQLA#v=onepage&q=By%20default%2C%20AWR%
20snapshots%20are%20automatically%20purged%20after%20eight%20days&f=false

NEW QUESTION # 282
......

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