Western Governors University (WGU) ITSW 2113 D278 Scripting and Programming Foundations Practice Exam

Functions in programming serve the primary purpose of encapsulating code for reuse and improving modularity. By grouping related statements into a single callable unit, functions allow programmers to avoid redundancy, which makes the code cleaner and easier to maintain. This encapsulation also promotes the principle of separation of concerns, where different parts of a program can be developed, tested, and updated independently.

When you define a function, you can call it multiple times throughout your code, which fosters code reuse. This not only helps in reducing the amount of code that needs to be written but also aids in debugging and testing, as changes made to a function in one place will automatically reflect wherever that function is used.

The concept of modularity refers to organizing code into distinct sections that each handle a specific part of the program's functionality. This makes it easier to manage larger projects, as developers can focus on individual components without getting overwhelmed by the entire codebase.

While the other choices may relate to certain aspects of programming, they do not encapsulate the primary role of functions as effectively. Functions do not inherently increase file size, nor are they primarily designed for handling user input or performing direct memory management. Instead, these aspects may be handled by functions, but they are not the fundamental purpose of