Unit 2 Final Quizz

What will be the output of the following code? int arr[] = {1, 2, 3, 4, 5}; printf("%d", arr[2]);

• 1

• 2

• 3

• 4

What is the index of the last element in an array of size 10 in C?

• 9

• 10

• 11

• 0

What is the default value of an array element in C if it is not initialized?

• 0

• Garbage value

• -1

• Depends on the data type

What will be the output of the following code? int arr[] = {10, 20, 30, 40, 50}; printf("%d", arr[1] + arr[3]);

• 30

• 60

• 70

• 90

How do you declare an integer array of size 5 in C?

• int arr(5);

• int arr[5];

• arr int[5];

• arr(5) int;

What will be the output of the following code? int arr[5] = {1, 2, 3, 4, 5}; printf("%d", arr[4]);

• 5

• 4

• 3

• 2

Which of the following correctly assigns a value to the second element of the array `arr` in C?

• arr(2) = 5;

• arr[2] = 5;

• arr[1] = 5;

• arr = 5;

What will be the output of the following code? int arr[3] = {1, 2, 3}; int sum = arr[0] + arr[2]; printf("%d", sum);

• 3

• 4

• 5

• 6

What will be the output of the following code? int arr[5] = {5, 10, 15, 20, 25}; printf("%d", arr[3]);

• 5

• 15

• 20

• 25

How is memory allocated for arrays in C?

• Dynamically on the stack

• Dynamically on the heap

• Statistically on the stack

• Both dynamically and statically