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C Preprocessor Directives and Function Declaration Quiz

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C Preprocessor Directives and Function Declaration Quiz

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Questions and Answers

What is the primary purpose of the #undef preprocessor directive in C?

To include a header file

To clear a macro definition (correct)

To define a macro

To check if a macro is defined

Which of the following is NOT a feature of C programming language?

Dynamic typing (correct)

Recursion support

Structured programming

Garbage collection

What is the purpose of the printf function in C?

To display output on the screen (correct)

To perform mathematical calculations

To read input from the user

To define a new function

What does a function declaration in C include?

Return type, name of function, function arguments (D) Signup and view all the answers

What is the purpose of lexical variable scope in C?

Limits the visibility of variables (B) Signup and view all the answers

Which preprocessor directive in C is used to substitute a preprocessor macro?

#define (B) Signup and view all the answers

What is the primary purpose of using the #ifdef preprocessor directive in C?

To conditionally include or exclude code during compilation (B) Signup and view all the answers

Which statement regarding C's type system is true?

It is statically typed (C) Signup and view all the answers

What role does the return statement play in a C function?

It terminates the function and returns a value to the caller (D) Signup and view all the answers

What is the primary benefit of utilizing lexical variable scope in C?

It limits the visibility of variables within a block of code (B) Signup and view all the answers

How are functions invoked in C?

By calling their names within another function (C) Signup and view all the answers

What best describes the purpose of the #define preprocessor directive in C?

To define constants or macros for reuse in the code (A) Signup and view all the answers