What is the primary purpose of a function in programming? To perform a calculation and return a value To store data To create graphics To compile code

To perform a calculation and return a value

What does it mean to 'invoke' a function? To declare a new function To call a function to execute its code To create a variable To end a program

To call a function to execute its code

What is a procedure in programming? A block of code that performs a task without returning a value A data type A loop structure A conditional statement

A block of code that performs a task without returning a value

How do you pass arguments to a function? Include them inside parentheses after the function name Write them outside the function Declare them as global variables Use a special keyword

Include them inside parentheses after the function name

What is a return value in the context of functions? The output that a function sends back to the caller The input needed by a function A syntax error The function's name

The output that a function sends back to the caller

Which of the following is a common reason to use procedures? To organize code into reusable sections To store data permanently To create user interfaces To compile code

To organize code into reusable sections

What is the primary difference between a function and a procedure in programming? Functions return a value, procedures do not. Procedures can return multiple values, functions cannot. Functions do not accept arguments, procedures do. Procedures are only used in event-driven programming.

Functions return a value, procedures do not.

Which of the following is NOT a common method for handling return values from a function? Using a global variable Returning a tuple Modifying the input parameters Using an exception to pass the result

Using an exception to pass the result

Which of the following best describes a higher-order function? A function that operates on primitive data types A function that can take other functions as arguments or return them A function that is called before main function A function with the highest priority in execution

A function that can take other functions as arguments or return them

In which scenario is pass-by-reference particularly beneficial? When modifying the input parameters is required When dealing with immutable data types When memory usage is not a concern When ensuring thread safety

When modifying the input parameters is required

What is the purpose of a callback function? To execute code asynchronously or in response to an event To call the main function To manage exception handling in a program To return multiple values from a function

To execute code asynchronously or in response to an event

What is the primary purpose of a function in programming? To execute a sequence of statements To store data permanently To facilitate user interaction To compile code

To execute a sequence of statements

Which of the following is a key difference between functions and procedures? Functions return a value; procedures do not Procedures can have parameters; functions cannot Functions cannot contain loops; procedures can Procedures are faster than functions

Functions return a value; procedures do not

Which statement correctly describes a return value in a function? It is optional and must be an integer It is mandatory and must be numeric It is optional and can be of any type It is mandatory and must be a string

It is optional and can be of any type

Which of the following best describes parameter passing by reference? A copy of the argument is passed The actual argument is modified Only primitive types can be passed It prevents the argument from changing

The actual argument is modified

What is a common use of a return statement in a function? To end the function early To print a message to the console To output a value back to the caller To repeat the function execution

To output a value back to the caller

Which of the following is an example of a function signature? void calculateSum(int a, int b) calculateSum(int a, int b) = 0 function calculateSum() int a, int b

void calculateSum(int a, int b)

What is a function in programming? A block of code that performs a specific task A type of variable An error in the code A user interface component

A block of code that performs a specific task

What is the purpose of a return type in a function? To specify the data type of the value the function will return To declare the function's parameter list To indicate the function's name To define the function's scope

To specify the data type of the value the function will return

What is a procedure in programming? A function without a return value A complex data type A conditional statement A type of loop

A function without a return value

Which of the following is true about procedures in Pascal? They must return a value They cannot have parameters They are defined with the keyword 'procedure' They are defined with the keyword 'func'

They are defined with the keyword 'procedure'

In Java, what is the role of the keyword 'void' when defining a method? Indicates a method does not return a value Specifies a default return value Denotes a method with no parameters Declares a method as private

Indicates a method does not return a value

In C++, what does the 'inline' keyword suggest about a function? The function has no side effects The function should be inlined if possible The function is a recursive function The function is a static function

The function should be inlined if possible

Which of the following statements about functions in Haskell is correct? They must have an explicit return type They can have side effects They are not first-class citizens They can be defined without parameters

They can be defined without parameters

In Ruby, how is a method defined to accept a variable number of arguments? Using the '...' operator By declaring parameters with '*args' By using 'varargs' By setting 'optional' in the parameter list

By declaring parameters with '*args'

What is the purpose of a function prototype in C? To allocate memory for the function To define the return type and parameters before use To provide a default implementation To execute the function

To define the return type and parameters before use

In Swift, how do you indicate that a function returns an optional type? Using '?' after the return type Using 'optional' keyword With 'var' before the return type With 'opt' before the function name

Using '?' after the return type

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