Multi-Dimensional Arrays in C Quiz

What is the primary purpose of a multi-dimensional array in C?

• To store a single value of any data type.

• To store a collection of elements of the same data type in a linear sequence.

• To store a collection of elements of the same data type in a tabular format.

• To perform mathematical calculations on single values.

Which of the following is the correct syntax to declare a two-dimensional array named matrix with 3 rows and 4 columns of type int?

• int matrix[3][4];

• int matrix[4][3];

• int matrix(3, 4);

• int matrix[3, 4];

How many elements can be stored in a two-dimensional array declared as float numbers[5][3]?

• 3

• 5

• 8

• 15

What is the index of the element located in the second row and third column of a two-dimensional array?

• [1, 2]

• [2, 3]

• [1, 3]

• [2, 2]

How do you access the value of the element at row 1 and column 2 in an array named matrix?

• matrix[1, 2]

• matrix[1][2]

• matrix(1, 2)

• matrix(1)[2]

Which of the following is the correct syntax to assign the value 100 to the element at row 0 and column 1 in an array named data?

• data[0, 1] = 100;

• data[0][1] = 100;

• data(0, 1) = 100;

• data(0)[1] = 100;

What is the purpose of nested loops when working with multi-dimensional arrays?

• To allocate memory for the array dynamically.

• To access and process elements in a row-by-row or column-by-column manner.

• To determine the size of the array.

• To initialize the array with specific values.

Which of the following is a valid way to declare and initialize a two-dimensional array named scores with the values shown below? 10 20 30 40 50 60 70 80 90

• int scores[3][3] = {10, 20, 30, 40, 50, 60, 70, 80, 90};

• int scores[3][3] = {{10, 20, 30}, {40, 50, 60}, {70, 80, 90}};

• int scores[3][3] = { {10, 20, 30}, {40, 50, 60}, {70, 80, 90} };

• Both b) and c)

What is the output of the following code snippet? int matrix[2][3] = {{1, 2, 3}, {4, 5, 6}}; printf("%d", matrix[1][1]);

• 1

• 2

• 4

• 5

Which of the following is a valid way to declare a three-dimensional array named cube with 2 rows, 3 columns, and 4 layers?

• int cube[2][3][4];

• int cube[2, 3, 4];

• int cube[2][3, 4];

• int cube[2, 3][4];