C Programing Quiz

Which loop guarantees that the loop body will be executed at least once?

• • A) for

• • B) while

• • C) do-while

What will be the output of the following code?

int arr[5] = {1, 2, 3, 4, 5}; printf("%d", arr[3]);

• • A) 3

• • B) 4

• • C) 5

Which of the following correctly defines a function with no return value and no parameters?

• • A) void func() {}

• • B) func(void) {}

• • C) int func() {}

What does the following code snippet print?

int i; for (i = 0; i < 5; i++) { printf("%d ", i); }

• • A) 0 1 2 3 4

• • B) 1 2 3 4 5

• • C) 0 1 2 3 4 5

What is the correct syntax to access the last element of an array arr with 10 elements?

• • A) arr[9]

• • B) arr[10]

• • C) arr[8]

What is the output of the following code?

int i = 10; while (i > 5) { i--; } printf("%d", i);

• • A) 6

• • B) 5

• • C) 10

Which of the following statements is true about functions in C?

• • A) Functions cannot return arrays.

• • B) Functions can only have one parameter.

• • C) Functions cannot call other functions.

What does the following function do?

int sum(int a, int b) { return a + b; }

• • A) Adds two integers and returns the result

• • B) Subtracts two integers and returns the result

• • C) Multiplies two integers and returns the result

What is the output of the following code?

int arr[] = {2, 4, 6, 8}; printf("%d", arr[2] * arr[0]);

• • A) 8

• • B) 12

• • C) 16

Which of these is a valid way to declare an array of 5 integers in C?

• • A) int arr[5];

• • B) int arr;

• • C) arr[5] int;