13 Questions
What is the purpose of the 'printf' function in C programming?
To print formatted output to the standard output (usually the console)
What is the primary purpose of a header file in C programming?
To declare functions and macros for use in multiple source files
What is a variable in C?
A container that stores values temporarily.
How do you declare a variable in C?
By using the data_type variable_name; syntax.
In C programming, what does the 'sizeof' operator do?
Returns the size of a variable or data type in bytes
What are some primitive data types supported in C?
int, char, float, double, bool
What is the purpose of initializing a variable in C?
To assign an initial value to the variable when it is declared.
How do you define a boolean variable in C?
By using the bool data type (C99/C11) and assigning it a value of true or false.
What are the naming rules for variables in C?
Use only lowercase letters (except for C99/C11 _ and $ as part of the identifier), avoid using reserved keywords, begin with a letter or underscore, and limit names to 31 characters.
Explain the concept of variable scope in C.
Variable scope refers to the portion of the program where a variable is accessible. In C, variables can have local scope (inside a function) or block scope (inside a block enclosed by curly braces {}).
What are the three categories of variable lifetime in C?
The three categories of variable lifetime in C are automatic, static, and allocated.
Why is initializing a variable important in C programming?
Initializing a variable is important to prevent it from having an indeterminate value, which can lead to unexpected behavior.
How can you convert a variable from one type to another in C?
To convert a variable from one type to another in C, you can use a cast operator (data_type).
Test your knowledge of fundamental concepts in C programming language with these questions about header files, the 'printf' function, and the 'sizeof' operator.
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