Variables and data types Questions
Computer Science 101 - Programming Fundamentals Past Papers

Practice 68 past-paper questions for Variables and data types in Computer Science 101 - Programming Fundamentals. Get solutions and exam preparation resources.

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1. What is the difference between a variable and a constant in programming? Provide examples.

2. What is the difference between `int` and `float` data types in programming? Provide examples.

3. What is the difference between `static` and `dynamic` typing in programming?

4. What is a variable? Write down significant rules for giving name to an identifier.

5. Discuss the different collection data types available in python programming with suitable examples of each. How could th…

6. What is the maximum length of a Python identifier? a. 8 b. 16 c. 32 d. No fixed length is specified

7. Which of the following is the CORRECT extension of the Python file? a. .pth b. .py c. .python d. .pl

8. Which character is used in Python to make a single line comment? a. / b. // c. # d. !

9. What is a variable in Python? a. A container to store data b. A loop to iterate through data c. A conditional statement…

10. What is the correct way to create an integer variable named "x" with value 1 in Python language? a. int x = 1 b. x = 1…

11. (958)10 is equivalent to ( )16

12. The word length of a computer is measured in

13. What is Number System? Explain different types of Number System. How can you do conversion from one number system to ano…

14. 3. What does the sizeof() operator do in C programming? a. It gives the size of operator. b. It gives the size of varia…

15. 4. The number 45.56 needs to be stored in a variable of data type? a. int b. double c. long int d. float

16. Write a program to check whether a number is palindrome or not. Palindrome number remains the same when its digits are r…

17. Write about storage class specifiers and their different types in C programming.

18. Write a program to store information about employees which can hold name, employee ID(int), basic salary (int), allowanc…

19. Which of the following is a desirable characteristic of a good C program?

20. Which of the following is not a valid C variable name?

21. Which keyword is used to prevent any changes in the variable within a C program?

22. What will be the output of the following program? #include<stdio.h> void main(){ int a=5, b=2; printf(*%d”,a/b); }

23. An Ampersand (&) in scanf() before the name of a variable denotes ________.

24. What type of programming language is C?

25. Can reserved words and keywords be the same in C?

26. What are certain non-printing characters known as in C?

27. How are operators grouped in C?

28. What is the result of the given expression?

29. Which is not a conversion character?

30. Which of the following is TRUE about C identifiers? a) It can be started with underscore (_) b) It cannot be same as a…

31. Which of the following is NOT an operator in C programming? a) % b) =< c) &&

32. What does the following statement return? `5&&6` a) 0 b) 1 c) 6

33. What is the output of the following program? ```c #include <stdio.h> void main() { int b = 3 + 2 % 4 % 3; printf…

34. What are relational operators? Provide a C snippet that demonstrates use of ! = (not-equal-to) relational operator. How…

35. What is an array? How does passing a variable to function differ with passing an array to function?

36. What are static storage classes? Write a complete C program that shows the use of static variable.

37. Which one is the correct order of operators according to higher precedence?

38. Which one of the followings operators has right-to-left associativity?

39. Write a program to represent an age of a person in years, months and days. Implement operator overloading which calculat…

40. 2. Which of the following will be printed? x= 9.5 y= 2 print x//y

41. 4. Which character is used for commenting in Python?

42. 6. The symbols <<,>>, and * are all operators. [ ] Bitwise [ ] Arithmetic [ ] Comparison [ ] Assignment

43. 7. What will be the output of str[0:3] if str= 'Kathmandu'?

44. 8. Which of the following is a list? [10L2,3] [1{(7,8,9} [10(7.8,9) [1<4,5,6>

45. 10. What will be the output of the following code snippet? a=1[1, 2, 3,4, 5] sum = @ for ele in a: sum += ele print(sum)

46. 11. A is a variable that is created inside a function. [ ] global variable [ ] local variable [ ] hidden variable [ ] no…

47. 12. Which of the following data types does not belong to Python? [ ] String [ ] Tuple [ ] Dictionary [ ] Stfucture

48. 15. Which of the following operators is the correct option for power(xy)? [1x"y x**y [1x*"y [1x~*y

49. 16. What will be the output of the following code? myTuple = (1, 2, 3); print(myTuple(1])

50. 20. What does Matplotlib provide in Python? [ ] Data manipulation [ ] Data visualization [ ] Number Calculation [ ] Text…

51. Explain the purpose of the range() function in Python and provide an example of how it's used within a for loop.

52. Describe the difference between a list and a tuple in Python. When would you choose one over the other?

53. What is a comment in Python, and why is it considered good programming practice to include comments? Discuss with an exa…

54. Explain the concept of "scope" in Python variables. Differentiate between local and global scope with simple examples.

55. 2. Discuss the concept of operator precedence in Python. Provide an example where operator precedence affects the result…

56. What is variable? Write any four rules for writing identifier.

57. Which of the following is valid in Python language?

58. What is the output of the given code? a="hello" b='Pharmacy' c=b+a print(c)

59. What is the output of the given code? a="language" print (a[-7:-3])

60. The string build-in method islower()

61. What is the output of the following code? result=23%6 print(result)

62. What is the output of the following code? hi=('a','b',1,2.5) print (hi)

63. What will be the output of the following Python code snippet? a={"Ram":21, 'Hari':12} print(a)

64. What do you mean by python tuples?

65. What will be the output of the following Python code snippet? num=set([1,2,3,1,2,3]) print (len(num))

66. What are used to store the values in keys and pairs.

67. Discuss the characteristics of signed magnitude, signed 1’s complement and signed 2’s complement numbers.

68. What does '3NF' (Third Normal Form) focus on in database design?

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