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Achieving the Oracle Certified Professional (OCP) certification in database administration is a valuable credential that can help IT professionals advance their careers. Oracle Database Administration II certification demonstrates to employers and clients that the individual has a deep understanding of Oracle database administration and is able to manage and maintain Oracle databases in a professional and efficient manner. By passing the Oracle Database Administration II Exam, candidates can take a significant step towards achieving this certification and gaining recognition for their skills and expertise.

Oracle 1Z1-083 exam includes various topics, such as database security, performance management, backup and recovery, database monitoring, and managing administrative tasks. 1Z0-083 Exam is composed of 78 multiple-choice questions, and candidates have 100 minutes to complete the test. Passing the Oracle 1Z1-083 exam is a great achievement for professionals in the field of database administration, and it can open doors to exciting job opportunities and career advancement.

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Oracle Database Administration II Sample Questions (Q23-Q28):

NEW QUESTION # 23
Choose two. When backing up to the Oracle Fast Recovery Area (FRA), you determine that the backup takes too long and suspect a performance bottleneck. Which two are true about diagnosing and tuning these problems?

A. Data files with a high value in V$BACKUP_SYNC_IO.DISCRETE_BYTES_PER_SECOND are a potential performance bottleneck when synchronous I/O is used.
B. If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.
C. If an RMAN BACKUP VALIDATE command takes noticeably less time than an actual backup, then write I/O is a likely bottleneck.
D. If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then read I/O is a likely bottleneck.F
E. Data files with a high value in V$BACKUP_ASYNC_IO.SHORT_WAITS are a potential performance bottleneck when asynchronous I/O is used.

Answer: A,C,E

NEW QUESTION # 24
Choose three. Which three are true about corrupted data blocks and their recovery in an Oracle Database?

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

Answer: C,E,F

NEW QUESTION # 25
Examine this configuration:
1. The ORCLdatabase data files are in Automatic Storage Management (Oracle ASM) disk group +DATA.
2. ORCLuses disk group +FRAfor the Fast Recovery Area.
3. LISTENER is the listener for ORCL.
4. The database, listener, ASM instance, and ASM disk groups are managed by Oracle Restart.
5. All components are currently shut down.
You execute this command:

What is the outcome?

A. Only the ORCLdatabase instance, the Oracle ASM instance, and the +DATAand +FRAdisk groups are started.
B. The ORCL database, the Oracle ASM instances, the +DATAand +FRAdisk groups, and the LISTENER are started.
C. Only the ORCLdatabase instance and the +DATAand +FRAdisk groups are started.
D. Only the ORCLdatabase and the ASM instances are started.
E. Only the ORCL database instance is started.

Answer: A

NEW QUESTION # 26
Which two are true about memory advisors? (Choose two.)

A. If Automatic Memory Management is enabled, no memory advisors are available.
B. If Automatic Memory Management is enabled, the Shared Pool Advisor and Buffer Cache Advisor are available to set the maximum size for these individual System Global Area components.
C. If Manual Shared Memory Management is enabled, only the Shared Pool Advisor and Buffer Cache Advisor are available.
D. If Automatic Shared Memory Management is enabled, both the SGA Advisor and PGA Advisor are always available.
E. All memory advisors use data from Automatic Workload Repository.

Answer: D,E

Explanation:
https://docs.oracle.com/database/121/ADMQS/GUID-8DE70F1D-E161-45D2-BE01- E9972883BCEC.htm#ADMQS1031

NEW QUESTION # 27
Which three are true about using Database Upgrade Assistant (DBUA) to upgrade a database?
(Choose three.)

A. The Pre-Upgrade Information Tool script is executed by DBUA.
B. The database must be opened in read-only mode.
C. Multiple databases with the same ORACLE_HOME can be upgraded simultaneously.
D. A whole database backup must exist before upgrade
E. DBUA must be launched from the target Oracle Home.
F. All pluggable databases are automatically upgraded as part of a container database upgrade.

Answer: A,E,F

Explanation:
D is not correct - you just need restore point and no backup is required E is not correct - DBUA will restart your DB in UPGRADE mode automatically F is not correct - you need to choose only one database

NEW QUESTION # 28
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