CSC126_Quiz7: Chapter 5.1

What is a function in programming?

• A type of variable

• A block of code designed to perform a specific task

• A data structure

• A library of predefined functions

Which of the following is a characteristic of user-defined functions?

• They are predefined in libraries

• They are written by the programmer

• They cannot return values

• They are always void functions

What is the purpose of a function prototype?

• To call the function

• To execute the function immediately

• To declare the function's name, return type, and parameters

• To define the body of the function

What does the 'setprecision' function do?

• Copies one string to another

• Controls the number of digits displayed for floating-point numbers

• Compares two strings character by character

• Sets the width of the output field

In C++, what is the difference between actual and formal parameters?

• Actual parameters are passed during function definition, formal parameters are used in function calls

• Actual parameters are always integers, formal parameters can be any type

• Formal parameters are passed during function definition, actual parameters are used in function calls

• Both are the same

What is the return type of a void function?

• It can return multiple values

• It returns a string

• It does not return a value

• It returns a value

Which header file is used for mathematical functions in C++?

What does the 'strcmp' function do?

• Sets the width of the output field

• Reads strings with blanks

• Compares two strings character by character

• Copies one string to another

What is the purpose of the 'getline' function?

• To read strings with blanks

• To read strings without spaces

• To compare two strings

• To set the precision of floating-point numbers

What happens after the last statement of a called function is executed?

• The function is called again

• Control is passed to the main function

• Control is passed back to the point immediately following the function call

• The program terminates