Free Access Oracle.1z0-062.v2022-12-05.q411 Practice Test (Page 61)

Question 296

In which situations does the Database Writer process (DBWn) write to data files? (choose two).

A.when the RMAN recovery process starts

B.when a user process commits a transaction

C.when a tablespace is made read-only or taken offline

D.when PMON cleans up dirty buffers in the database buffer cache

E.when clean buffers for reading new blocks into the database buffer cache are not found easily

Question 297

In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments.
On further investigation, you find that buffer busy waits is caused by contention on data blocks.
Which option would you consider first to decrease the wait event immediately?

A.Decreasing PCTUSED

B.Decreasing PCTFREE

C.Increasing the number of DBWN process

D.Using Automatic Segment Space Management (ASSM)

E.Increasing db_buffer_cache based on the V$DB_CACHE_ADVICE recommendation

Question 298

Which two actions does an incremental checkpoint perform?

A.It signals CKPTto write the checkpoint position to the data file headers.

B.It writes the checkpoint position to the data file headers.

C.It advances the checkpoint position in the checkpoint queue.

D.It writes the checkpoint position to the control file.

Question 299

You enabled an audit policy by issuing the following statements:
SQL> AUDIT POLICY ORA_DATABASE_PARAMETER BY SCOTT;
SQL> AUDIT POLICY ORA_DATABASE_PARAMETER BY SYS, SYSTEM;
For which database users and for which executions is the audit policy now active? Select two.

A.SYS, SYSTEM

B.SCOTT

C.Only for successful executions

D.Only for failed executions

E.Both successful and failed executions

Question 300

Which two statements are true about Oracle Data Pump export and import operations?
(Choose two.)

A.You cannot specify how partitioned tables should be handled during an import operation.

B.Only data can be compressed during an export operation.

C.Existing dump files can be overwritten during an export operation.

D.Tables cannot be renamed during an import operation.

E.Metadata that is exported and imported can be filtered based on objects and object types.

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