Data Structures Quiz

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Data Structures Quiz

Quiz Questions and Answers on Data Structures

1. The extra key inserted at the end of the array is called a
(a) end key
(b) stop key
(c) sentinel
(d) transposition

2. A complete binary tree with property that the value at each node is at least as large as the values at its children is known as
(a) Binary search tree
(b) Completely balanced tree
(c) AVL tree
(d) Heap

3. All computer execute
(a) BASIC programs
(b) machine language programs
(c) COBOL programs
(d) FORTRAN programs

4. Which of the following is the most oriented to scientific programming?
(d) PL/I

5. All of the following are disadvantages of RPG except :
(a) It is a very machine-dependent language
(b) It is very limited in its scope
(c) It is not suited for complex problems requiring extensive programming logic
(d) It has large storage requirements

6. Which of the following is not one of the processes that a high level language program must go through before it is ready to be executed ?
(a) Translation
(b) Loading
(c) Controlling
(d) linking

7. Which of the following is not true for FORTRAN?
(a) It was developed for scientific and mathematical applications
(b) It is one of the oldest high-level languages
(c) It is a problem-oriented language
(d) it requires extensive internal documentation.

8. All of the following are divisions of the COBOL program except:
(a) Identification
(b) Data
(c) Input-output
(d) Procedure

9. In a COBOL program, the input-output section is within the _________ division.
(a) Identification
(b) Configuration
(c) Procedure
(d) environment

10. Which of the following is not a characteristic of COBOL ?
(a) It is very standardized language
(b) It is very efficient in terms of coding and execution
(c) It has limited facilities for mathematical notation
(d) It is a vary readable language

11. Which of the following is an example of a problem-oriented language?
(b) PL/A
(d) None of the above

12. In the evaluation of a computer language, all of the following characteristics should be considered except :
(a) application-oriented features
(b) software development aids
(c) efficiency
(d) hardware maintenance costs

13. A factor in the selection of a source language is :
(a) programmer skill
(b) program compatibility with other software
(c) language availability
(d) all of the above

14. A computer – generated output that lets programmers follow the execution of their programs line by line is a:
(a) core dump
(b) detail listing
(c) tracing routine
(d) source listing

15. Which of the following BASIC statements is correct?
(a) INPUT N$
(b) 45 PRINT X, Y, Z
(c) 60 LET C + D = Q
(d) 100 END, JOB

16. The equivalent of the operation code in the BASIC line format is the
(a) Label
(b) Command
(c) line number
(d) variable

17. Which of the following variable names is not correct at any time?
(a) HR
(b) K9
(c) N$(I)
(d) P(5)

18. A characteristic associated with arrays is:
(a) The DIM statement must be the first program statement.
(b) A subscripted variable must identify data in the arrays.
(c) Each array name defines the type of data to be stored within it.
(d) All of the above

19. The system command used to store a program within the computer is the :
(a) STORE command
(b) SAVE command
(c) HOLD command
(d) all of the above

20. Descriptive comments are put in the source program with the :
(a) REMARK statement
(b) DATA statement
(c) PRINT statement
(d) INPUT statement

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21. The PICTURE clause PIC $*,*** 99, when applied to the data 19.42,will produced the edited output:
(a) $19.42
(b) $***19.42
(c) $**19.42
(d) $*, *19.42

22. The conditional statement that verifies the accuracy of input data is a:
(a) class test
(b) read check
(c) data check
(d) data test

23. FILLER must be defined by a (n):
(a) A PICTURE clause
(b) 9’s PICTURE clause
(c) X PICTURE clause
(d) (a) and (b) both

24. The PICTURE clause PIC A(4) defines a(n):
(a) alphameric field
(b) alphabetic, four-character field.
(c) field composed of 4As
(d) four-character numeric field

25. A required entry within the IDENTIFICATION DIVISION is :
(a) the PROGRAM-ID statement
(b) an AUTHOR statement
(c) the DATE-WRITTEN instruction
(d) all of the above

26. The READ INTO statement involves :
(a) an FD
(b) an 01-level entry in WORKING-STORAGE
(c) a dummy input area
(d) all of the above

27. The ACCEPT statement requires the use of :
(a) an FD
(b) an 01-level WORKING-STORAGE entry
(c) a SELECT clause
(d) a 77-level WORKING-STORAGE entry

28. Which of the following generations of languages will likely include the languages of the future?
(a) second-generation
(b) fourth-generation
(c) third-generation
(d) fifth-generation

29. Which of the following use(s) English-like statements to represent program logic ?
(a) Flowcharts
(b) Pseudocode
(c) ANSI symbols
(d) algorithms

30. Which of the following generations does natural language fall into ?
(a) third generation
(b) fifth generation
(c) second generation
(d) fourth generation

31. Which of the following relates to machine language?
(a) difficult to learn
(b) machine-dependent
(c) instructions and data are represented by binary digits
(d) all of the above

32. Which of the following might prevent a program from being modified in the future?
(a) logic errors
(b) pseudocode
(c) lack of program documentation
(d) syntax errors

33. Which of the following is/are used to speed up the process of designing the initial version of a software program ?
(b) ANSI
(c) Compiler
(d) applications generator

34. Which of the following helped develop standard for high level programming languages?
(a) ANSI
(b) Compiler
(d) application generator

35. The language that doesn’t require the user to learn a specific vocabulary or syntax is :
(a) RPG

36. Which of the following is a high level language?
(d) all of the above

37. Which of the following allows users to specify what the computer is supposed to do rather than how the computer is supposed to do it?
(a) nonprocedural language

38. A computer program consists of
(a) a completed flowchart
(b) algorithms written in computer’s language
(c) algorithms
(d) discrete logical steps

39. Most computers understand programs written in
(a) natural English language
(b) any high-level programming language
(d) specific programming language

40. The use of a computer to get information from a data bank is called
(a) information withdrawl
(b) information retrieval
(c) computer simulation
(d) full-text searching

41. The person who writes instructions that tell the computer how to handle input information is called
(a) data entry check
(b) computer operator
(c) computer programmer
(d) keypunch operator

42. A computer programmer
(a) does all the thinking for a computer.
(b) can operate all types of computer equipment
(c) can enter input data quickly
(d) can draw only flowcharts

43. PILOT language is meant for
(a) Tailors
(b) authors, teachers, and trainers
(c) school-going children
(d) use in process control

44. The special purpose computer language for process control is
(a) ADA
(b) PL/1

45. Low level computer language use.
(a) English words
(b) limited grammar
(c) mnemonic codes
(d) mathematical symbols

46. Computer program writing
(a) requires high mathematical skills
(b) requires engineering background
(c) needs a science degree
(d) is an art more than a science

47. Which of the following languages is not well suited for computation ?
(b) Machine
(d) none of the above

48. Which of the following languages is not well suited for business application?
(b) PL/I
(c) Assembly
(d) none of the above

49. Which of the following languages is usually implemented with an interpreter?
(a) Assembly

50. Which of the following languages is often translated to pseudo code?
(b) PL/I