Most 50 C Language Question and Answer For Fresher

1. Question: Which of the following is the correct syntax to declare an integer variable in C?

• A) int x;
• B) x integer;
• C) integer x;
• D) declare x as integer;
• Answer: A) int x;

1. Question: What will be the output of the following code snippet?

   #include<stdio.h>
   int main() {
       printf("%d", sizeof(int));
       return 0;
   }

• A) 2
• B) 4
• C) 8
• D) Depends on the system architecture
• Answer: D) Depends on the system architecture

1. Question: What does the ‘void’ keyword indicate in a function declaration in C?

• A) It indicates that the function returns nothing.
• B) It indicates that the function takes no arguments.
• C) It indicates that the function is not defined.
• D) It indicates that the function is static.
• Answer: A) It indicates that the function returns nothing.

1. Question: Which operator is used to access the value at the address stored in a pointer variable?

• A) *
• B) &
• C) ->
• D) ::
• Answer: A) *

1. Question: What will be the output of the following code snippet?

   #include<stdio.h>
   int main() {
       int x = 5;
       int *ptr = &x;
       printf("%d", *ptr);
       return 0;
   }

• A) 5
• B) Address of x
• C) Garbage value
• D) Compilation Error
• Answer: A) 5

1. Question: Which of the following is NOT a valid data type in C?

• A) float
• B) double
• C) string
• D) long
• Answer: C) string

1. Question: What will be the output of the following code snippet?

   #include<stdio.h>
   int main() {
       int x = 5, y = 10;
       printf("%d", x++ + ++y);
       return 0;
   }

• A) 15
• B) 16
• C) 17
• D) 20
• Answer: B) 16

1. Question: Which of the following is NOT a valid identifier in C?

• A) myVar
• B) 123var
• C) _myVar
• D) $myVar
• Answer: B) 123var

1. Question: What will be the output of the following code snippet?

   #include<stdio.h>
   int main() {
       int x = 5, y = 10;
       x += y;
       printf("%d", x);
       return 0;
   }

• A) 5
• B) 10
• C) 15
• D) 20
• Answer: C) 15

1. Question: What is the purpose of the ‘sizeof’ operator in C?
   • A) To return the size of a variable in bytes.
   • B) To return the address of a variable.
   • C) To return the value stored in a variable.
   • D) To allocate memory for a variable.
   • Answer: A) To return the size of a variable in bytes.
2. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int x = 5, y = 10; printf("%d", (x > y) ? x : y); return 0; }
   • A) 5
   • B) 10
   • C) 15
   • D) Compilation Error
   • Answer: B) 10
3. Question: What is the purpose of the ‘break’ statement in C?
   • A) To terminate a loop or switch statement.
   • B) To skip the current iteration of a loop.
   • C) To exit a function.
   • D) To continue to the next iteration of a loop.
   • Answer: A) To terminate a loop or switch statement.
4. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int x = 5; if (x == 5 && x == 10) printf("True"); else printf("False"); return 0; }
   • A) True
   • B) False
   • C) Compilation Error
   • D) Runtime Error
   • Answer: B) False
5. **

Question:** What is the purpose of the ‘continue’ statement in C?
– A) To terminate a loop.
– B) To skip the current iteration of a loop.
– C) To exit a function.
– D) To break out of a switch statement.
– Answer: B) To skip the current iteration of a loop.

15. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int x = 10; printf("%d", x++); return 0; }
    • A) 10
    • B) 11
    • C) 9
    • D) Compilation Error
    • Answer: A) 10
16. Question: Which function is used to allocate memory dynamically in C?
    • A) malloc()
    • B) calloc()
    • C) realloc()
    • D) All of the above
    • Answer: D) All of the above
17. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int x = 5; if (x = 10) printf("True"); else printf("False"); return 0; }
    • A) True
    • B) False
    • C) Compilation Error
    • D) Runtime Error
    • Answer: A) True
18. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
19. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x--); return 0; }
    • A) 5
    • B) 4
    • C) 6
    • D) Compilation Error
    • Answer: A) 5
20. Question: What is the purpose of the ‘do-while’ loop in C?
    • A) To execute a block of code while a condition is true.
    • B) To execute a block of code at least once, then repeat as long as a condition is true.
    • C) To execute a block of code a fixed number of times.
    • D) To exit a loop.
    • Answer: B) To execute a block of code at least once, then repeat as long as a condition is true.
21. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int i; for (i = 0; i < 5; i++) { if (i == 2) continue; printf("%d ", i); } return 0; }
    • A) 0 1 2 3 4
    • B) 0 1 3 4
    • C) 1 2 3 4
    • D) 0 1 2 3
    • Answer: B) 0 1 3 4
22. Question: What is the purpose of the ‘while’ loop in C?
    • A) To execute a block of code while a condition is true.
    • B) To execute a block of code at least once, then repeat as long as a condition is true.
    • C) To execute a block of code a fixed number of times.
    • D) To exit a loop.
    • Answer: A) To execute a block of code while a condition is true.
23. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int x = 5; while (x > 0) { printf("%d ", x); x--; } return 0; }
    • A) 5 4 3 2 1
    • B) 1 2 3 4 5
    • C) 0
    • D) Compilation Error
    • Answer: A) 5 4 3 2 1
24. Question: What is the purpose of the ‘switch’ statement in C?
    • A) To execute a block of code while a condition is true.
    • B) To execute a block of code at least once, then repeat as long as a condition is true.
    • C) To execute one of many blocks of code based on the value of an expression.
    • D) To exit a loop.
    • Answer: C) To execute one of many blocks of code based on the value of an expression.
25. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { char grade = 'A'; switch (grade) { case 'A': printf("Excellent"); break; case 'B': printf("Good"); break; case 'C': printf("Average"); break; default: printf("Fail"); } return 0; }
    • A) Excellent
    • B) Good
    • C) Average
    • D) Fail
    • Answer: A) Excellent
26. Question: What is the purpose of the ‘continue’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: B) To skip the current iteration of a loop.
27. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int i = 0; while (i < 5) { printf("%d ", i); i++; } return 0; }
    • A) 0 1 2 3 4
    • B) 1 2 3 4 5
    • C) 0 1 2 3
    • D) Compilation Error
    • Answer: A) 0 1 2 3 4
28. Question: What is the purpose of the ‘do-while’ loop in C?
    • A) To execute a block of code while a condition is true.
    • B) To execute a block of code at least once, then repeat as long as a condition is true.
    • C) To execute a block of code a fixed number of
    times.
    • D) To exit a loop.
    • Answer: B) To execute a block of code at least once, then repeat as long as a condition is true.
29. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int i = 0; do { printf("%d ", i); i++; } while (i < 5); return 0; }
    • A) 0 1 2 3 4
    • B) 1 2 3 4 5
    • C) 0 1 2 3
    • D) Compilation Error
    • Answer: A) 0 1 2 3 4
30. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
31. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int i; for (i = 0; i < 5; i++) { if (i == 2) break; printf("%d ", i); } return 0; }
    • A) 0 1
    • B) 0 1 2
    • C) 0 1 3 4
    • D) Compilation Error
    • Answer: A) 0 1
32. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
33. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int i; for (i = 0; i < 5; i++) { if (i == 2) return 0; printf("%d ", i); } return 0; }
    • A) 0 1
    • B) 0 1 2
    • C) 0 1 3 4
    • D) Compilation Error
    • Answer: A) 0 1
34. Question: What is the purpose of the ‘continue’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: B) To skip the current iteration of a loop.
35. Question: What will be the output of the following code snippet? #include<stdio.h> int main() { int i; for (i = 0; i < 5; i++) { if (i == 2) continue; printf("%d ", i); } return 0; }
    • A) 0 1
    • B) 0 1 2
    • C) 0 1 3 4
    • D) Compilation Error
    • Answer: C) 0 1 3 4
36. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
37. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
38. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
39. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
40. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
41. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
42. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
43. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
44. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the
    function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
45. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
46. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
47. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
48. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
49. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
50. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
51. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
52. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
53. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
54. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
55. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
56. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
57. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
58. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the
    last case.
    • Answer: A) It is used to define a default case.
59. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
60. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
61. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
62. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
63. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
64. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
65. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
66. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
67. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
68. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
69. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
70. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
71. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
72. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
73. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
74. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
75. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
76. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last
    case.
    • Answer: A) It is used to define a default case.
77. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
78. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
79. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
80. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
81. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
82. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
83. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
84. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
85. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
86. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
87. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
88. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
89. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
90. Question: What is the output of the following code snippet?
    c #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }

• A) 5
  • B) 6
  • C) 10
  • D) Compilation Error
  • Answer: A) 5

15. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
16. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
17. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
18. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.
19. Question: What is the purpose of the ‘return’ statement in C?
    • A) To terminate a loop.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To break out of a switch statement.
    • Answer: C) To exit a function.
20. Question: What is the output of the following code snippet? #include<stdio.h> int main() { int x = 5; printf("%d", x++); return 0; }
    • A) 5
    • B) 6
    • C) 10
    • D) Compilation Error
    • Answer: A) 5
21. Question: What is the purpose of the ‘sizeof’ operator in C?
    • A) To return the size of a variable in bytes.
    • B) To return the address of a variable.
    • C) To return the value stored in a variable.
    • D) To allocate memory for a variable.
    • Answer: A) To return the size of a variable in bytes.
22. Question: What is the purpose of the ‘void’ keyword in a function declaration in C?
    • A) It indicates that the function returns nothing.
    • B) It indicates that the function takes no arguments.
    • C) It indicates that the function is not defined.
    • D) It indicates that the function is static.
    • Answer: A) It indicates that the function returns nothing.
23. Question: What is the purpose of the ‘break’ statement in C?
    • A) To terminate a loop or switch statement.
    • B) To skip the current iteration of a loop.
    • C) To exit a function.
    • D) To continue to the next iteration of a loop.
    • Answer: A) To terminate a loop or switch statement.
24. Question: What is the purpose of the ‘default’ keyword in a switch statement in C?
    • A) It is used to define a default case.
    • B) It is used to exit the switch statement.
    • C) It is used to specify the initial value of a variable.
    • D) It is used to define the last case.
    • Answer: A) It is used to define a default case.