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Oracle 1z0-083 Exam With Confidence Using Practice Dumps

Exam Code:
1z0-083
Exam Name:
Oracle Database Administration II
Certification:
Oracle Database 19c
Vendor:
Oracle
Questions:
286
Last Updated:
Aug 20, 2025
Exam Status:
Stable
Oracle 1z0-083

1z0-083: Oracle Database 19c Exam 2025 Study Guide Pdf and Test Engine

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Oracle Database Administration II Questions and Answers

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Question 1

Choose the best answer. You want to transport the UNIVERSITY tablespace from one database to another. The UNIVERSITY tablespace is currently open read/write. The source and destination platforms have the same endian Examine this list of steps:. 1. Make the UNIVERSITY tablespace read-only on the source 2. Export the UNIVERSITY tablespace metadata using EXPDP. 3. Create a cross-platform backup set from the UNIVERSITY source system, using an RMAN command that includes the DATAPUMP clause. 4. Copy the cross-platform backup sets to the destination system. 5. Copy the Data Pump dump set from the source to the destination system. 6. Restore the cross-platform backup set on the destination system using an RMAN command that includes the DATAPUMP clause. 7. Import the UNIVERSITY tablespace metadata using IMPDP. 8. Make the UNIVERSITY tablespace read/write on the destination system. Which are the minimum number of steps required, in the correct order, to transport the UNIVERSITY tablespace?

Options:

A.

3,4,6

B.

2,3,4,5,6,7

C.

1,3,4,6,8

D.

1,2,3,4,5,6,7,8

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Question 2

You accidentally drop the CUSTOMERS table, and then recover it by using the FLASHBACK TABLE command. Which two statements are true about the dependent objects of the CUSTOMERS table?

Options:

A.

All the triggers associated with the table are flashed back but are disabled.

B.

Materialized views that use the CUSTOMERS table are flashed back.

C.

LOB segments associated with the CUSTOMERS table are flashed back.

D.

All the constraints defined on the table, except the referential integrity constraints, are flashed back.

E.

Only the primary key constraint created for the table is flashed back, whereas all other indexes must be retrieved separately.

Question 3

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.)

Options:

A.

If an RMAN BACKUP VALIDATE command takesroughly the same time as an actual backup, then both read and write I/O are likely bottlenecks.

B.

Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using synchronous I/O.

C.

If an RMAN BACKUP VALIDATE command takes noticeably lessthan 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.

E.

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.

F.

Setting DBWR_IO_SLAVES to a non zero value can improve backup performance when using asynchronous I/O/

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.

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