C Programming Module 5: Pointers in C Quiz

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What does a pointer variable store as its value in C?

The data type of another variable
The memory address of another variable (correct)
A random memory address
The value of another variable

What is one of the benefits of using pointers in C?

Decreased memory usage
Simplified syntax for function definitions
Increased readability of the code
More efficient handling of arrays and data tables (correct)

What is the syntax for declaring a pointer variable in C?

data_type ptr_name ;
*ptr_name data_type;
data_type *ptr_name; (correct)
*data_type ptr_name;

How can pointers be used to return more than one value from a function in C?

By passing pointers as arguments to the function (C) Signup and view all the answers

Which statement is true about pointers in C?

Pointers allow support for dynamic memory management (C) Signup and view all the answers

What does the asterisk (*) in the declaration statement signify?

That the variable is a pointer variable (B) Signup and view all the answers

What is the process of assigning the address of a variable to a pointer variable known as?

Initialization (B) Signup and view all the answers

When an array is declared, what does the compiler allocate?

A base address and continuous memory locations for array elements (B) Signup and view all the answers

What does the indirection operator or dereference operator (*) allow you to do?

Access a variable through its pointer (B) Signup and view all the answers

What does the name of an array represent?

A constant pointer to the first element of the array (C) Signup and view all the answers

What is an array in programming?

A group of related data items of similar data type sharing a common name (D) Signup and view all the answers

What does the size of an array define?

The number of elements in the array (A) Signup and view all the answers

In C programming, how can arrays be initialized at declaration time?

By specifying the type of elements and the total number of elements in the array (D) Signup and view all the answers

What happens when the subscripted variable in an array is accessed?

It refers to the memory location of the array element (A) Signup and view all the answers

Which type of arrays are stored in contiguous memory locations?

One-dimensional arrays (A) Signup and view all the answers

What happens if the number of elements provided in an array initialization is less than the size of the array?

The remaining elements are initialized to 0. (D) Signup and view all the answers

What will be the output if the user enters 3, 8, and 5 when prompted with 'Enter the no. of elements (max. 50) :'?

The first three elements of the 'age' array will be assigned these values, and the rest will remain uninitialized. (D) Signup and view all the answers

What is the purpose of the 'scanf' function in the code snippet provided?

To read and store values entered by the user into the 'age' array. (C) Signup and view all the answers

What will happen if a user enters a value greater than 50 when prompted with 'Enter the no. of elements (max. 50) :'?

The program will ignore any values entered beyond the 50th element. (B) Signup and view all the answers

In C, how can all elements of an array be initialized to 0?

int age[50] = {0}; (B) Signup and view all the answers