Online 1Z0-082 Practice Test

Question 1

Which two statements are true about Database Instances and Real Application Clusters (RAC)?

Options :

A : A RAC database can have one Instance.

B : A RAC database can have instances on separate servers.

C : Two RAC databases can share their instances.

D : A RAC database must have three or more Instances.

E : A RAC database must have two or more instances.

Answer: A,B

Question 2

Which two statements are true regarding the UNION and UNION ALL operators? (Choose two.)

Options :

A : Duplicates are eliminated automatically by the UNION ALL operator

B : The number of columns selected in each SELECT statement must be identical

C : The names of columns selected in each SELECT statement must be identical

D : The output is sorted by the UNION ALL operator

E : NULLS are not ignored during duplicate checking

Answer: A,B

Question 3

Which two statements are true about single row functions? (Choose two.)

Options :

A : MOD : returns the quotient of a division operation

B : FLOOR : returns the smallest integer greater than or equal to a specified number

C : TRUNC : can be used with NUMBER and DATE values

D : CONCAT : can be used to combine any number of values

E : CEIL : can be used for positive and negative numbers

Answer: A,C

Question 4

Examine the description of the BOOKS table:

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The table has 100 rows.

Examine this sequence of statements issued in a new session:

INSERT INTO books VALUES ('ADV112', 'Adventures of Tom Sawyer', NULL, NULL);

SAVEPOINT a;

DELETE FROM books;

ROLLBACK TO SAVEPOINT a;

ROLLBACK;

Which two statements are true? (Choose two.)

Options :

A : The second ROLLBACK command does nothing

B : The second ROLLBACK command replays the delete

C : The first ROLLBACK command restores the 101 rows that were deleted, leaving the inserted row still to be committed

D : The second ROLLBACK command undoes the insert

E : The first ROLLBACK command restores the 101 rows that were deleted and commits the inserted row

Answer: C,D

Question 5

Which three statements are true about roles?

Options :

A : All roles granted to a user are set on by default when the user logs in,

B : Object privileges may not be granted to roles.

C : The SET ROLE statement can disable one or more roles for a session.

D : Roles must be password protected.

E : Roles may be granted to roles.

F : The SET ROLE statement can enable one or more roles for a session.

Answer: A,B,C

EXPERTY DESIGNED 1Z0-082 PRACTICE TEST