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Oracle 1Z1-083 (Oracle Database Administration II) Certification Exam is designed to test the knowledge and skills of database administrators who are responsible for managing and maintaining Oracle databases. 1Z0-083 exam is intended for professionals who have experience working with Oracle databases and are looking to advance their career by becoming certified in database administration. 1Z0-083 Exam covers a wide range of topics related to database administration, including database architecture, performance tuning, backup and recovery, security, and troubleshooting.

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Oracle 1Z1-083 exam is a certification test that validates the skills and knowledge of database administrators in managing and maintaining Oracle databases. It is the second part of the Oracle Database Administration certification track and is designed for professionals who have already passed the first exam, 1Z1-082. The 1Z1-083 exam is a challenging and comprehensive assessment that covers a wide range of topics related to Oracle database administration.

Oracle Database Administration II Sample Questions (Q78-Q83):

NEW QUESTION # 78
Examine this configuration:
1. CDB1is a container database.
2. PDB1 and PDB2are pluggable databases in CDB1.
3. PDB1 and PDB2are OPENin READ WRITEmode.
You execute these commands successfully:

Which two are true? (Choose two.)

A. CDB1 is shut down.
B. PDB1 is closed.
C. Uncommitted transactions in PDB1 have been rolled back.
D. Uncommitted transactions in CDB1 and PDB1 have been rolled back.
E. CDB1 is in MOUNT state

Answer: B,C

NEW QUESTION # 79
Choose two. Which two are true about RMAN backups when using a media manager?

A. A media manager always writes RMAN requested backups to tape.
B. A media manager is required to create RMAN proxy copies.
C. By default, a request for a proxy copy may result in a backup set being created.
D. A media manager is required to create RMAN image copies.
E. The media manager layer (MML) routines provided by Oracle support any vendors' media management products.

Answer: A,E

NEW QUESTION # 80
Which three are true about backup, restore, and recovery operations done without using Recovery Manager (RMAN)? (Choose three.)

A. Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in MOUNT state.
B. An Oracle database can be restored from backup files copied using O/S utilities.
C. Oracle data file backups, copied using an O/S utility, can be added to the RMAN catalog as IMAGE COPIES.
D. Backing up a database in ARCHIVELOG mode using O/S utilities requires that the database instance be started and the database be in OPEN state.
E. Backing up a database in NOARCHIVELOGmode using O/S utilities requires that the database instance be started and the dataabse be in the MOUNT state.
F. Backing up a database in NOARCHIVELOG mode using O/S utilities requires that the database instance be shut down.
G. Oracle archive log backups, copied using an O/S utility, can be added to the RMAN catalog as a backup set.

Answer: B,C,F

Explanation:
A,B,G are not right because the question is telling us 'without RMAN'. To put it in mount/open or so, are necessary only in case of using RMAN. Otherwise, using OS Utils, DB must be closed or maximum in NOMOUNT state.
F is incorrect as according to the following note only archivelog, backuppiece, controlfilecopy or datafilecopy can be cataloged
https://docs.oracle.com/cd/B19306_01/backup.102/b14194/rcmsynta011.htm

NEW QUESTION # 81
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

A. A connection to the recovery catalog instance is always required.
B. A backup of the target database is always required.
C. A connection to an auxiliary instance is always required.
D. Duplication can be done by having the target database instance push copies to the auxiliary database instance.
E. A subset of the target database can be duplicated.
F. A new DBID is always created for the duplicated database.
G. A connection to the target database instance is always required.
H. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.

Answer: B,C,D,H

NEW QUESTION # 82
While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck. FORCE LOGGING is enabled for the database. Which two could improve read performance? (Choose two.)

A. Increase the size of tape I/O buffers.
B. Disable FORCE LOGGING for the database.
C. Increase the size of the database buffer cache.
D. Enable asynchronous disk I/O.
E. Increase the level of RMAN multiplexing.

Answer: B,C

NEW QUESTION # 83
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