Available Questions About C Quizzes

1. How do you declare a structure in C?

• struct Name { int age; };
• struct Name { int age; }
• struct Name { int age; };
• struct Name { int age; }

2. Which of the following statements is true about arrays in C?

• Array size must be specified at runtime.
• Arrays in C are dynamically sized.
• Array indices start from 1.
• The size of an array must be known at compile time.

3. How do you include a standard library header file in C?

• #include <header.h>
• #include "header"
• #include <header>
• #include <header.h>

4. In C, what does the sizeof() operator return?

• The number of elements in an array
• The size of a variable or data type in bytes
• The memory address of a variable
• The total memory allocated to a program

5. Which operator is used to access the value of a variable through a pointer?

• &
• *
• ->
• .

6. How do you declare a pointer to a function in C?

• int *func();
• int (*func)();
• int (*func)();
• int func*();

7. What is the size of an int on a 32-bit system?

• 2 bytes
• 4 bytes
• 8 bytes
• 16 bytes

8. Which of the following is used to dynamically allocate memory in C?

• malloc()
• alloc()
• new()
• calloc()

9. Which of the following statements about the static keyword in C is true?

• static variables are local to the function in which they are defined but retain their value between function calls.
• static variables are only accessible within the entire program.
• static keyword can only be used for global variables.
• static keyword is used to declare variables that are shared between different functions.

10. What does the sizeof() operator return when used on a pointer in C?

• The size of the object pointed to by the pointer
• The size of the pointer variable itself
• The size of the memory block pointed to by the pointer
• The total size of the array the pointer points to