Revision 2 MCA

What does a pointer variable store?

• Both the value and address of the variable it points to

• The value of the variable it points to

• Holds a character

• The address of the variable it points to

In a two-dimensional matrix declaration, the first subscript specifies the number of______________.

• Column

• Rows

• Diagonal

• None

The dereference operator is also referred to as ___________________________.

• indirection operator

• Logical operator

• relational operator

• Reference operator

What is the storage class used for a global variable in C?

• register

• Auto

• static

• extern

What is the correct syntax for declaring an array of size 10 in C?

• int arr[10];

• array int arr[10];

• int[10] arr;

• int arr{}

Which of the following is the correct syntax to access a structure member through a pointer?

• ptr.member_name

• *ptr.member_name

• ptr[member_name]

• ptr->member_name

Which of the following represents a collection of different data types?

• char

• string

• structure

• array

Which of the following is a derived data type in C?

• int

• char

• float

• String

What is default value of auto storage class of variables in c language?

• 2

• 5

• 1

• GARBAGE

What is a null pointer in C?

• A pointer that points to any memory location.

• A pointer that stores the memory address of the variable.

• A pointer that does not point to any valid memory location.

• A pointer that stores only integers.