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[General] Pass Guaranteed 1Z0-083 - Oracle Database Administration II–High Pass-Rate Test

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【General】 Pass Guaranteed 1Z0-083 - Oracle Database Administration II–High Pass-Rate Test

Posted at before yesterday 18:27      View：3 | Replies：1        Print      Only Author   [Copy Link] 1#
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Oracle Database Administration II Sample Questions (Q22-Q27):NEW QUESTION # 22
Which statement correctly describes the SQL profiling performed by the SQL Tuning Advisor?
  • A. It is auxiliary information collected by the optimizer for a SQL statement to help use better joins orders.
  • B. It is auxiliary information collected by the optimizer for a SQL statement to eliminate estimation error.
  • C. It is a set of recommendations by the optimizer to change the access methods used.
  • D. It is a set of recommendations by the optimizer to restructure a SQL statement to avoid suboptimal execution plans.
  • E. It is a set of recommendations by the optimizer to create new indexes.
Answer: D
Explanation:
SQL Tuning Advisor is a mechanism for resolving problems related to suboptimally performing SQL statements.
https://docs.oracle.com/en/datab ... 9/tgsql/sql-tuning- advisor.html#GUID-8E1A39CB-A491-4254-8B31-9B1DF7B52AA1

NEW QUESTION # 23
Which two are true about RMAN encryption? (Choose two.)
  • A. RMAN encryption keys are stored in a database keystore.
  • B. RMAN can encrypt the Oracle Database password file.
  • C. The SET ENCRYPTIONcommand overrides encryption settings specified by the CONFIGURE ENCRYPTIONcommand.
  • D. Password encryption can be persistently configured using the CONFIGURE ENCRYPTION command.
  • E. Dual-mode encrypted backups can be restored only if both the password and the keystore used for encryption are available.
Answer: A,C
Explanation:
- Password encryption cannot be persistently configured. (E is incorrect)
- Although the database depends on other types of files for operation, such as network configuration files, password files, and the contents of the Oracle home, these files cannot be backed up with RMAN (you can't even backup a password file, B incorrect)
- You can also use the SET ENCRYPTION command to perform the following actions:
Override the encryption settings specified by the CONFIGURE ENCRYPTION command. (D is correct)

NEW QUESTION # 24
Which two are true about flashback features in Oracle Database 19c and later releases?
  • A. Flashback logs are monitored and proactively deleted when beyond the retention period definedin db_flashback_retention_target before there is space pressure.
  • B. Flashback logs are monitored for being older than the retention period defined in db_flashback_retention_target and can be deleted by an administrator written event trigger.
  • C. Flashback logs are monitored and proactively deleted when beyond the retention period definedin DB_flashback_retention_TARGET only after there is space pressure
  • D. Flashback logs are automatically purged when db_flashback_retention_target is set lower than the time they have already been retained.
  • E. Flashback logs are automatically purged whenever the value Of DB_FLASHBACK_RETENTION_TARGET is changed.
Answer: A,B

NEW QUESTION # 25
Which two are true about RMAN backups when using a media manager to write backups to tape when there are only two tape drives? (Choose two.)
  • A. The SBT device should be configured to use PARALLELISM 2 to allow both tape drive to be used simultaneously.
  • B. SBT tape compression and RMAN backup compression should be used in parallel.
  • C. Any backup written to the SBT device in this configuration can contain a maximum of two backup sets.
  • D. Any backup set written to the SBT device in this configuration can contain a maximum of two backup pieces.
  • E. SBT tape compression can be used even if no RMAN compression is configured.
Answer: A,E

NEW QUESTION # 26
You configured the Fast Recovery Area (FRA) for your database. The database instance is in ARCHIVELOG mode. The default location for the archived redo log files is the FRA. Which two files are removed automatically if space is required in the FRA as per the retention policy?
  • A. RMAN backups that are obsolete
  • B. user-managed backups of data files and control files
  • C. flashback logs
  • D. archived redo log files that have multiple copies in a different archive location
Answer: A,C

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