WHY DO YOU NEED VALID AND UPDATED ORACLE 1Z0-083 EXAM QUESTIONS?

Why do you need valid and updated Oracle 1Z0-083 Exam Questions?

Why do you need valid and updated Oracle 1Z0-083 Exam Questions?

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It can be difficult to prepare for the Oracle 1Z0-083 exam successfully, but with actual and updated Oracle Database Administration II (1Z0-083) exam questions, it can be much simpler. The difference between successful and failed 1Z0-083 Certification Exam attempts can be determined by studying with real 1Z0-083 exam questions.

Oracle 1Z0-083 Certification Exam is a challenging but rewarding exam that tests the skills and knowledge of experienced database administrators. By preparing thoroughly and demonstrating their mastery of Oracle database administration, candidates can earn this valuable certification and take their careers to the next level.

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Oracle Database Administration II Sample Questions (Q104-Q109):

NEW QUESTION # 104
While backing up to the Oracle Fast Recovery Area (FRA), you determined the backup istaking too long and suspect a performance bottleneck. Which three are true about diagnosing and tuning these problems? (Choose three.)

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

Answer: C,D,F


NEW QUESTION # 105
Examine this configuration:

You execute these commands before upgrading the database to the current release:

For which databases will fixup scripts be created?

  • A. CDB1, PDB1, and PDB2 only
  • B. PDB$SEED, PDB1, and PDB2 only
  • C. CDB1, PDB$SEED, PDB1, and PDB2
  • D. CDB1, PDB$SEED, and PDB1 only
  • E. CDB1 and PDB$SEED only

Answer: E


NEW QUESTION # 106
Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

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

Answer: A,C,D,G

Explanation:
A duplicate database is a copy of your target database. With the FOR STANDBY clause, it keeps the same unique database identifier(DBID); If FOR STANDBY not specified it creates a new DBID.
The duplicate database can include the same content or only a subset from the source database.
It can be in the same host or a separate host.
The principal work of the duplication is performed by the auxiliary channels.These channels correspond to a server session on the auxiliary instance on the destination host for backup based duplication.
For active database duplication the target channels perform the work of pushing data file copies to the auxiliary instance (if number of allocated target channels is greater than the number of allocated auxiliary channels).


NEW QUESTION # 107
Which two are true about Recovery Manager (RMAN) diagnostic message output? (Choose two.)

  • A. RMAN error stacks should be read from the bottom up as that is the order in which errors are generated.
  • B. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file and to standard output.
  • C. The RMAN LOG command line clause causes output issued during RMAN command compilation to be written to a log file only.
  • D. Media Management messages for SBT devices are written to an Oracle trace file.
  • E. Media Management messages for SBT devices are always written to sbtio.log.
  • F. RMAN error stacks should be read from the top down as that is the order in which errors are generated.

Answer: C,D


NEW QUESTION # 108
Which two are true about RMAN duplexed backup sets? (Choose two.)

  • A. They can be written only to disk.
  • B. They can be created by using the RMAN CONFIGURE command to specify duplexing before taking a backup.
  • C. They can be created only by using the COPIES option of a BACKUP command.
  • D. They can be written to media.
  • E. They must be written to media.

Answer: B,D

Explanation:
In most cases, the easiest method of duplexing backup sets is to use BACKUP... COPIES or CONFIGURE ... BACKUP COPIES to duplex backup sets.
RMAN can duplex backups to either disk or tape, but cannot duplex backups to tape and disk simultaneously.
https://docs.oracle.com/en/database/oracle/oracle-database/18/bradv/configuring-rman-client- advanced.html#GUID-2A285F87-552A-4F36-A5B9-F25A69611B4B


NEW QUESTION # 109
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