Free Oracle 1Z0-083 Exam Questions

Become Oracle Certified with updated 1Z0-083 exam questions and correct answers

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Total 285 Questions | Updated On: Nov 26, 2025

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Question 1

Which two are true about creating pluggable databases (PDBs) in Oracle 19c and later releases?

A : A PDB snapshot depends on an existing storage snapshot of the source PDB.

B : APDB snapshot can be a full copy of a source PDB.

C : A PDB snapshot can be a sparse copy of a source PDB

D : A snapshot copy PDB does not depend on an existing storage snapshot of the source PDB.

E : A snapshot copy PDB can be a full copy of a source PDB

Answer: B,C

Question 2

Which three are true about requirements for various FLASHBACK operations? (Choose three.)

A : FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.

B : FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON.

C : FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.

D : FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.

E : FLASHBACK drop requires undo to retrieve all versions of a row that existed two points in time.

F : FLASHBACK version query requires undo to retrieve all versions of a row that existed between two points in time.

Answer: A,B

Question 3

Which two are true about the Automatic Database Diasnostic Monitor (ADDM)? (Choose two.)

A : It analyzes a period of time corresponding to the 12 hours of activity.

B : It runs automatically after each AWR snapshot.

C : A DBA can run it manually.

D : Results are written to the alert log.

E : It analyzes a period of time corresponding to the last day of activity.

Answer: B,C

Question 4

You notice that the performance of your production 24/7 Oracle 12c database has significantly degraded. Sometimes you are not able to connect to the instance because it hangs. You do not want to restart the database instance. How can you detect the cause of the degraded performance?

A : Enable Memory Access Mode, which reads performance data from SGA.

B : Use emergency monitoring to fetch data directly from SGA for analysis.

C : Run Automatic Database Diagnostic Monitor (ADDM) to fetch information from the latest Automatic Workload Repository (AWR) snapshots.

D : Use Active Session History (ASH) data and hang analysis in regular performance monitoring,

E : Run ADDM in diagnostic mode.

Answer: B

Question 5

Which three are true about transporting databases across platforms using Recovery Manager (RMAN) image copies? (Choose three.)

A : By default, the transported database will use Oracle Managed Files (OMF)

B : Data files can be converted on the destination system.

C : Data files can be converted on the source system.

D : A new DBID is automatically created for the transported database.

E : Databases can be transported between systems with different endian formats.

F : The password file is automatically converted by RMAN.

Answer: A,B,C

Page: 1 / 57

Total 285 Questions | Updated On: Nov 26, 2025

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