Understanding Arrays in C

What is the primary purpose of an array in C?

• To store a single value of any data type.

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

• To perform mathematical calculations.

• To manage file input and output.

Which of the following is the correct syntax for declaring an array named numbers with 10 elements of type int?

• int numbers[10];

• int numbers(10);

• int numbers = 10;

• int numbers = [10];

How do you initialize an array named letters with the values 'a', 'b', 'c', and 'd' at the time of declaration?

• char letters[4] = {'a', 'b', 'c', 'd'};

• char letters[4] = "abcd";

• char letters[] = {'a', 'b', 'c', 'd'};

• All of the above.

What is the index of the first element in an array?

• 1

• 0

• -1

• The array's size.

How do you access the third element of an array named scores?

• scores[2]

• scores[3]

• scores(2)

• scores(3)

Which of the following is NOT a benefit of using arrays in programming?

• Efficient storage and access of elements.

• Organization of related data.

• Ability to store elements of different data types.

• Iteration and processing of data.

What is the purpose of the sizeof() operator when used with an array?

• To determine the size of an individual element in the array.

• To determine the total number of elements in the array.

• To determine the size of the array in bytes.

• To determine the data type of the array.

Which of the following is a valid way to access the last element of an array named values with a size of 5?

• values[5]

• values[4]

• values[-1]

• values[sizeof(values)]

What is the purpose of the malloc() function in C?

• To initialize an array with specific values.

• To allocate memory for an array dynamically.

• To access an element in an array.

• To determine the size of an array.

Which of the following statements is TRUE about arrays in C?

• Arrays can be resized after they are declared.

• Arrays can store elements of different data types.

• Arrays are a fundamental data structure used in many programming techniques.

• Arrays are only suitable for storing numerical data.