C Programming Quiz

Which of the following is a valid identifier in C?

• 2data

• data_1

• char

• int-value

Which of the following is not a keyword in C?

• auto

• register

• typedef

• function

Which data type is used to represent a single character in C?

• int

• char

• float

• double

What is the size of int on a typical 32-bit system?

• 2 bytes

• 4 bytes

• 8 bytes

• 1 byte

What is the purpose of keywords in C?

• They define user-defined variables

• They are used to perform operations

• They have special meaning and cannot be used as identifiers

• They define memory locations

Which of the following is a valid character constant in C?

• 'abc'

• "a"

• 'a'

• a

What is the output data type of sizeof(char) in C?

• int

• char

• float

• size_t

Which of the following characters is used to indicate a preprocessor directive?

• @

• %

• #

• $

Which of these is not a valid data type in standard C?

• float

• bool

• double

• long

Which keyword is used to define a constant value in C?

• final

• const

• static

• define