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1z0-497 Exam Dumps : Oracle Database 12c Essentials

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Oracle Database 12c Essentials Questions and Answers

Question 1

Which option represents the steps to add a multiplexed copy of the current control file or to rename a control file in Oracle Database 12c?

a - Shut down the database.

b - Restart the database.

c - Copy an existing control file to a new location by using operating system commands.

d - Edit the CONTROL_FILESparameter in the database initialization parameter file to add the new control file name, or to change the existingcontrol file name.

Options:

A.

b, c, d

B.

a, c, d, b

C.

a, d, b, c

D.

c, d, b

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Question 2

Which three events signal a database writer (DWR) to write buffers to disk?

Options:

A.

The database advances a checkpoint.

B.

A client process commits a transaction.

C.

The redo log buffer becomes full.

D.

A server process cannot find non-dirty blocks after scanning a threshold number of buffers.

E.

A tablespace is changed to read-only status.

F.

The database is shut down in immediate mode.

Question 3

Which three tasks can you perform in Database Express?

Options:

A.

View performance and status information about the database instance.

B.

Start up the database.

C.

Shut down the database.

D.

Create database structures.

E.

Manage users and security.