Free Access Oracle.1z0-062.v2022-06-21.q305 Practice Test (Page 47)

Question 226

Examine the structure of the SALES table, which is stored in a locally managed tablespace with Automatic Segment Space Management (ASSM) enabled.

You want to perform online segment shrink to reclaim fragmented free space below the high water mark.
What should you ensure before the start of the operation?

A.Referential integrity constraints for the table are disabled.

B.No queries are running on this table.

C.No pending transaction exists on the table.

D.Row movement is enabled.

E.Extra disk space equivalent to the size of the segment is available in the tablespace.

Question 227

The DEFERRED_SEGMENT_CREATIONparameter is set to TRUEin your database instance.
You execute the following command to create a table:

Which two statements are true?

A.A segment is allocated when an index is created for any column in the table.

B.The table is created without a segment because the storage clause is missing.

C.A segment is allocated when the first row is inserted in the table.

D.A segment is allocated for the table if the ALTER TABLE... ALLOCATE EXTENTcommand is issued.

E.The table is created and extents are immediately allocated as per the default storage defined for its tablespace.

Question 228

You want to flash back a test database by five hours.
You issue this command:
SQL > FLASHBACK DATABASE TO TIMESTAMP (SYSDATE - 5/24);
Which two statements are true about this flashback scenario? (Choose two.)

A.The database must be MOUNTED for the flashback to succeed.

B.The database must be opened in restricted mode for the flashback to succeed.

C.The database must have multiplexed redo logs for the flashback to succeed.

D.The database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.

E.The database must use block change tracking for the flashback to succeed.

F.The database must be opened with the RESETLOGS option after the flashback is complete.

Question 229

Your database instance is started by using a server parameter file (SPFILE). You execute the following command to change the value of the LOG_BUFFER initialization parameter:
ALTER SYSTEM SET LOG_BUFFER=32 M;
What is the outcome of this command?

A.It returns an error becauseSCOPEshould be set toMEMORY.

B.The parameter value is changed and it comes into effect as soon as space becomes available in the SG

C.Itreturns an error because the value of this parameter cannot be changed dynamically.

D.The parameter value is changed and it comes into effect at the next instance startup.

Question 230

Your production database uses file system storage. You want to move storage to Oracle Automatic Storage Management (ASM).
How would you achieve this?

A.by using a transportable database

B.by using the Database Upgrade Assistant (DBUA)

C.by using Data Pump

D.by using RMAN

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