question What is the purpose of the sizeof operator in C

Programming

What is the purpose of the 'sizeof' operator in C?

A. Returns size of a variable
B. Returns ASCII value
C. Returns the memory address
D. Returns pointer size

'sizeof' returns the size in bytes of a variable.

What does the 'printf' function do in C?

A. Print format
B. Print function
C. Print file
D. Print formatted output

What is the output of printf("%d", 5 << 2);?

A. 20
B. 10
C. 40
D. 5

In C, how do you declare a constant?

A. const
B. constant
C. Const
D. #define

What is the purpose of the 'enum' keyword in C?

A. Declare a structure
B. Declare an enumeration
C. Declare a function
D. Declare a variable

How do you use the 'const' keyword with a pointer in C?

A. const *ptr;
B. *const ptr;
C. const ptr;
D. const int *ptr;

What is the purpose of the 'typedef' keyword in C?

A. Create a new data type
B. Define a variable
C. Declare a function
D. Include a header file

What is the role of 'calloc' function in C?

A. Allocate memory for an array
B. Free allocated memory
C. Allocate memory for a variable
D. Allocate and initialize memory for an array

What is the purpose of the 'strchr' function in C?

A. Search for a character in a string
B. Search for a string in another string
C. Compare strings
D. Concatenate strings

What is the purpose of the 'break' statement in a switch statement?

A. Exit the program
B. Skip to the next case
C. Exit the loop
D. Terminate the switch statement

What is the output of printf("%d", sizeof(1.5));?

A. 4
B. 8
C. 2
D. 1