Page 353 - GMAT 2017b_Neatb

Computer Literacy Test 2

13. Which of the following is an output device for CAD? (A) Formats Screen and Printer displays
(A) Pen Plotters (B) Allows us to add new data to our data base
(B) Hard Copy Units (C) A condition is not true
(C) Computer output to micro-film units (D) None of the above
(D) All of the above
23. Integrity constraints are predicates which must be free
14. Which of the following is a low level language? for data stored in
(A) Machine language (A) an entity
(B) FORTRAN (B) the database
(C) PASCAL (C) the system
(D) C (D) None of the above

15. A command file is actually a 24. One of the aspects of data integrity is related to data
(A) data base access and
(B) computer memory (A) privacy problems
(C) computer program (B) language
(D) micro-substitution (C) both (A) and (B)
(D) none of the (A) and (B)
16. Memory variables are temporary storage places for
piece of 25. Locking mechanism guarantees exclusive access to an
(A) information item of data while a lock
(B) databases (A) has not been used
(C) RAM (B) is in force
(D) None of the above (C) both (A) and (B)

17. A computer main memory is called 26. QUEL is interpreted by the
(A) database (A) DBMS
(B) computer memory (B) INGRES system
(C) random access memory (C) SQL system
(D) none of the above (D) None of the above

18. The CHR function tells us the character that goes along 27. SQL is a relational language which has also been
(A) with a computer memory implemented in several
(B) with a number (A) DBMS
(C) with a database (B) QUEL
(D) none of the above (C) INGRES
(D) None of the above
19. An address that does not change if you copy the
formula from one cell to another. The team of this 28. Relational algebra is one of the basic concepts for
definition is defining
(A) ASCII (A) Programming language
(B) Address (B) Relational languages
(C) Absolute ADDRESS (C) High level programming language
(D) None of the above (D) None of the above

20. Assembly languages also referred to as 29. The data in a database are usually logically organised
(A) low level languages according to same
(B) machine language (A) DBMS
(C) high language program (B) retrieving data
(D) none of the above (C) Data model
(D) None of the above
21. Computer can only perform
(A) several basic operations 30. Support for data independence is arguably by most
(B) two basic operations important feature of a
(C) three basic operations (A) Software system
(D) none of the above (B) Database system
(C) Network system
(D) None of the above
22. The compound is Append, which is the correct
definition of the following:
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