Technical Quiz 2022-23

What is the syntax to declare a variable in C?

• var x;

• int x;

• declare x;

• define x;

Which of the following is not a valid C data type?

• int

• float

• char

• string

What is the size of the 'int' data type in C on most systems?

• 4 bytes

• 8 bytes

• 2 bytes

• 1 byte

Which operator is used for pointer-to-member access in C?

• .

• ->

• ::

• []

How is a single-line comment written in C?

• // Comment

• /* Comment */

• # Comment

• ' Comment

Which function is used to allocate memory dynamically in C?

• alloc()

• malloc()

• new()

• allocate()

What is the escape sequence for a newline character in C?

• \n

• \r

• \t

• \b

What is the result of the expression 5 + 3 * 2 in C?

• 10

• 16

• 11

• 13

How can you check if two strings are equal in C?

• strcmp(str1, str2) == 0

• str1 == str2

• str1 = str2

• str1.equals(str2)

Which library should be included to use the "printf" and "scanf" functions in C?

• stdio.h

• conio.h

• math.h

• string.h