Free Access Oracle.1Z0-082.v2022-02-11.q110 Practice Test (Page 3)

Question 6

Your database instance is started with a PFILE.
Examine these parameters:

You want to increase the size of the buffer cache.
Free memory is available to increase the size of the buffer cache.
You execute the command:
SQL> ALTER SYSTEM SET DB_CACHE_SIZE=1024M;
What is the outcome?

A.The value is changed only in the PFILE and takes effect at the next instance startup

B.The value is changed for the current instance and in the PFILE

C.It fails because the SCOPE clause is missing

D.Change is applied to the current instance, but does not persist after instance restart

Question 7

In the ORCL database, UNDOTBS1 is the active undo tablespace with these properties:
1. A size of 100 MB
2. AUTOEXTEND is off
3. UNDO_RETENTION is set to 15 minutes
4. It has RETENTION GUARANTEE
UNDOTBS1 fills with uncommitted undo 10 minutes after the database opens.
What will happen when the next update is attempted by any transaction?

A.It succeeds and the least recently read undo block of UNDOTBS1 is overwritten by the generated undo.

B.It succeeds and the least recently written undo block of UNDOTBS1 is overwritten by the generated undo.

C.It succeeds and the generated undo is stored in SYSAUX.

D.It fails and returns the error message "ORA-30036: unable to extend segment by 8 in undo tablespace
'UNDOTBS1'".

E.It succeeds and the generated undo is stored in SYSTEM.

Question 8

Which three statements are true about table data storage in an Oracle Database? (Choose three.)

A.Data block headers contain their own Data Block Address (DBA)

B.A table row piece can be chained across several database blocks

C.Multiple row pieces from the same row may be stored in different database blocks

D.Multiple row pieces from the same row may be stored in the same block

E.Data block free space is always contiguous in the middle of the block

F.Index block free space is always contiguous in the middle of the block

Question 9

Examine the description of the CUSTOMERS table:

For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?

A.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level != NULL AND cust_credit_level !=NULL;

B.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level IS NOT NULL AND due_amount IS NOT NULL;

C.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level IS NOT NULL AND cust_credit_limit IS NOT NULL;

D.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level <> NULL AND due_amount <> NULL;

E.SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT FROM customers WHERE cust_income_level != NULL AND due_amount != NULL;

Question 10

You execute this command:

During the export operation, you detach from the job by using CTRL+C and then execute this command:
Export> STOP_JOB=immediate
Are you sure you wish to stop the job ([yes]/no): yes
Which two statements are true about the job? (Choose two.)

A.You can no longer monitor it

B.You can reattach to it and monitor it

C.It is paused and can be resumed

D.It continues to run in the background

E.It terminates

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