Download Oracle Database Administration II.1z0-083.PremiumDumps.2025-11-15.181q.tqb

Vendor: Oracle
Exam Code: 1z0-083
Exam Name: Oracle Database Administration II
Date: Nov 15, 2025
File Size: 2 MB
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Demo Questions

Question 1
Examine these queries and their output:
After a system crash, an instance restart and an attempted opening of the PDBs result in:
Which two are true? (Choose two.)
  1. Data file 24 can be recovered while PDB2 is opened.
  2. Data file 24 must be recovered while the CDB is opened.
  3. Data file 24 can be recovered while CDB$ROOT and PDB$SEED are opened.
  4. Data file 24 cannot be recovered while the CDB is opened.
  5. Data file 24 must be recovered while PDB2 is closed.
Correct answer: AC
Explanation:
AC: 12 - MostedDE: 3
AC: 12 - MostedDE: 3
Question 2
Which two are true about gathering optimizer statistics? (Choose two.)
  1. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open PDBs except PDB$SEED.
  2. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to a PDB opened in read/write mode gathers object statistics for that PDB.
  3. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics only in CDB$ROOT.
  4. System statistics can be gathered only while connected to CDB$ROOT.
  5. Executing DBMS_STATS.GATHER_DATABASE_STATS while connected to CDB$ROOT gathers object statistics in all open pluggable databases (PDBs)
Correct answer: BC
Explanation:
BC: 12 - MostedBE: 1
BC: 12 - MostedBE: 1
Question 3
Which two are true about Oracle Flashback features? (Choose two.)
  1. FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.
  2. FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and ARCHIVED REDO LOG files.
  3. FLASHBACK TABLE can undrop a column.
  4. FLASHBACK DROP can undrop an index when undropping a table.
  5. After a database is restored from flashback logs using the FLASHBACK DATABASE command, it is sometimes rolled forward using redo logs.
Correct answer: DE
Explanation:
DE: 4 - Mosted
DE: 4 - Mosted
Question 4
Which three are true about requirements for various FLASHBACK operations? (Choose three.)
  1. FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.
  2. FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON.
  3. FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.
  4. FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.
  5. FLASHBACK drop requires undo to retrieve all versions of a row that existed between two points in time.
  6. FLASHBACK version query requires undo to retrieve all versions of a row that existed between two points in time.
Correct answer: BDF
Explanation:
ABF: 13BDF: 15 - Mosted
ABF: 13BDF: 15 - Mosted
Question 5
For which two requirements can you use the USER_TABLESPACE clause with the CREATE PLUGGABLE DATABASE command? (Choose two.)
  1. to specify a default tablespace in a PDB cloned from another PDB in the same CDB.
  2. to exclude all tablespaces except SYSTEM, SYSAUX, and TEMP when plugging in a PDB
  3. to include specific user tablespaces only when relocating a PDB
  4. to specify the list of user tablespaces to include when moving a non-CDB to a PDB
  5. to exclude a temp tablespace when plugging in a PDB
  6. to specify the list of tablespaces to include when creating a PDB from the CDB seed
Correct answer: BD
Explanation:
BD: 11 - MostedBF: 1DE: 2DF: 4
BD: 11 - MostedBF: 1DE: 2DF: 4
Question 6
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.)
  1. Increase the size of tape I/O buffers.
  2. Disable FORCE LOGGING for the database.
  3. Increase the size of the database buffer cache.
  4. Enable asynchronous disk I/O.
  5. Increase the level of RMAN multiplexing.
Correct answer: DE
Explanation:
DE: 6 - Mosted
DE: 6 - Mosted
Question 7
Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.)
  1. All metrics are instance related.
  2. Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.
  3. A space usage management alert is automatically cleared after the underlying problem is resolved.
  4. They are generated by SMON when a tablespace is 97% full.
  5. Metrics are statistical counts for a specific unit.
  6. STATISTICS_LEVEL must be set to ALL to generate alerts.
Correct answer: BCE
Explanation:
BCE: 6 - Mosted
BCE: 6 - Mosted
Question 8
Which three actions are performed by the Oracle Preinstallation RPM, oracle-database-server-xxxx-preinstall, for Oracle Grid Infrastructure, where xxxx is the Oracle version and release? (Choose three.)
  1. performing checks to ensure minimum configuration requirements for Oracle Grid Infrastructure are met
  2. creating the oracle OS user
  3. creating the OSDBA (dba) group
  4. creating the oraInventory (oinstall) group
  5. creating the grid OS user
  6. configuring the OS for Oracle Automatic Storage Management shared storage access
Correct answer: BCD
Explanation:
BCD: 9 - Mosted
BCD: 9 - Mosted
Question 9
Which two are true about common objects? (Choose two.)
  1. They can be created only in CDB$ROOT.
  2. They can be only metadata-linked in an application container.
  3. They can exist in user-defined schemas only in application containers.
  4. They can exist in CDB$ROOT and an application root.
  5. They can be extended data-linked in CDB$ROOT.
  6. They can be created only in an application root.
Correct answer: DF
Explanation:
DE: 9DF: 10 - Mosted
DE: 9DF: 10 - Mosted
Question 10
Which two are true about the Automatic Database Diagnostic Monitor (ADDM)? (Choose two.)
  1. It analyzes a period of time corresponding to the 12 hours of activity.
  2. It runs automatically after each AWR snapshot.
  3. A DBA can run it manually.
  4. Results are written to the alert log.
  5. It analyzes a period of time corresponding to the last day of activity.
Correct answer: BC
Explanation:
BC: 6 - MostedBD: 1
BC: 6 - MostedBD: 1
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