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Oracle 1Z1-083 certification exam is designed for professionals who aspire to become Oracle Database Administrators. 1Z0-083 exam is a part of the Oracle Certified Professional (OCP) program and is the second exam required to earn the Oracle Database Administration II certification. 1Z0-083 Exam Tests the candidate's knowledge and skills required to manage and maintain an Oracle database.

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Oracle 1Z0-083 Exam consists of 80 multiple-choice questions and must be completed within 120 minutes. 1Z0-083 exam covers a range of topics related to advanced database administration, including database architecture, data management, performance tuning, backup and recovery, security, and high availability. Candidates who pass the exam will earn the Oracle Certified Professional (OCP) credential, demonstrating their expertise in managing and maintaining Oracle databases at an enterprise level. Oracle Database Administration II certification can be a valuable asset for IT professionals seeking to advance their careers in database administration.

Oracle Database Administration II Sample Questions (Q271-Q276):

NEW QUESTION # 271
Choose three. Which three are true about corrupted data blocks and their recovery in an Oracle Database?

A. The ANALYZE TABLE VALIDATE STRUCTURE CASCADE command verifies that each table row has an index entry pointing to it.
B. DB_LOST_WRITE_PROTECT=TYPICAL causes extra logging overhead on the standby database.
C. DB_BLOCK_CHECKING=TRUE causes a check sum to be added to each data block to help detect physical or media corruption.
D. A media corrupt block is one where the block is not formatted correctly.
E. If a row lock is held by a nonexistent transaction, the block containing the row is media corrupt.
F. If a row lock is held by a nonexistent transaction, the block containing the row is logically corrupt.

Answer: A,B,F

NEW QUESTION # 272
Choose two. Which two are true about gathering optimizer statistics?

A. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in PDB$SEED.
B. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/ write mode gathers object statistics for that PDB.
C. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.
D. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs).
E. System statistics can be gathered only while the CDB is in MOUNT state.

Answer: B,C

NEW QUESTION # 273
Which three are true about interpreting Recovery Manager (RMAN) error stacks returned to standard output?
(Choose three.)

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

Answer: A,C,F

NEW QUESTION # 274
Which two are true about poorly performing SQL statements and their tuning in Oracle database instances?
(Choose two.)

A. The solution that best optimizes one SQL statement can degrade the performance of others.
B. SQL statements performing many physical I/Os can always have their performance improved by creating indexes.
C. SQL statements doing only logical reads never require tuning because they do no physical I/O.
D. SQL statements doing joins always do more physical I/O than single table queries.
E. Poorly performing SQL statements can be tuned automatically by the Oracle server.

Answer: C,E

NEW QUESTION # 275
Which three are true about Automatic Workload Repository (AWR) and Automatic Database Diagnostic Monitor (ADDM) in an Oracle multitenant environment?

A. No AWR data is stored in the CDB$ROOT SYSAUX tablespace.
B. AWR snapshots can be created in CDB$ROOT.
C. All AWR data is stored in the CDB$ROOT SYSAUX tablespace.
D. AWR snapshots can be created in a PDB.
E. ADDM can run in a nonroot container.
F. AWR reports can be generated while connected to any container.

Answer: B,C,D

NEW QUESTION # 276
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