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C Programming - MCQ Practice Questions

Practice free C Programming multiple-choice questions with detailed answers and explanations. Perfect for competitive exam preparation.

978 questions | 100% Free

Q.181Easy

Can we pass a structure variable to a function in C?

Q.182Easy

Which of the following is a key difference between struct and union in C?

Q.183Easy

What will be the output of sizeof() for the following union? union data { int a; float b; double c; }

Q.184Easy

In C, what is a self-referential structure?

Q.185Easy

Which keyword is used to define a new name for a structure in C?

Q.186Easy

What is the purpose of padding in C structures?

Q.187Easy

How do you access a structure member through a pointer in C?

Q.188Easy

What is the primary advantage of using structures in C?

Q.189Easy

What is the output of the following code? struct Point { int x; int y; }; struct Point p = {5}; printf("%d %d", p.x, p.y);

Q.190Easy

Which of the following is true about typedef struct?

Q.191Easy

Consider union u { int i; char c; float f; }; What is the size of this union?

Q.192Easy

Which of these is a valid declaration of a structure variable using dot operator immediately after struct definition?

Q.193Easy

Which of the following correctly demonstrates self-referential structure (for linked list)?

Q.194Easy

When structure is passed by value to a function, which of these is true?

Q.195Easy

What is the correct way to dynamically allocate an array of structures? struct Student { int roll; char name[50]; };

Q.196Easy

Which of the following statements about unions is correct?

Q.197Easy

Consider: union Data { int i; float f; char c; }; What is the size of this union?

Q.198Easy

How do you access a member of a structure through a pointer in C?

Q.199Easy

Which of the following correctly demonstrates a typedef for a structure?

Q.200Easy

Which of the following is the correct way to initialize a structure in C?