Rust Programming 2023 - A Comprehensive Course for Beginners - What Are Modules in Rust

The video tutorial explains Rust's module system, highlighting its ability to organize code into logical units and manage visibility. It introduces crates, the Cargo tool, and the use of the 'use' keyword for importing modules. An example demonstrates creating and running a module, emphasizing the importance of public and private function declarations. The tutorial concludes with a practical exercise to reinforce learning.

What is the primary purpose of a module in Rust?

• To compile code into a binary

• To manage code visibility and organization

• To execute code faster

• To handle memory allocation

What is a crate in Rust?

• A tool for debugging

• A collection of modules compiled together

• A type of variable

• A function library

Which tool is used for managing crates in Rust?

• Cargo

• Rustc

• Racer

• Clippy

What is the default visibility of functions in a Rust module?

• Public

• Protected

• Private

• Internal

Which keyword is used to import a module in Rust?

• import

• require

• include

• use

In the example provided, what is the purpose of the 'play' function?

• To compile the module

• To print the name of a song

• To create a new module

• To delete a song

What happens if the 'pub' keyword is removed from a function in a module?

• The function becomes public

• The function is deleted

• The function is renamed

• The function becomes private