Here are a few quick informative facts about making games with Unity. Take some time to familiarize yourself with these concepts, as the certification course repeatedly references them.
Understanding Components and Game Objects: A component is a functional piece that contains information about a game object or its behavior. Take a look at the screenshot below of the Player game object from the Wwise Adventure Game.
Attached to the game object you can see various components used to control player movement, animation, and so on. In other words, a game object can have components that define how it looks or behaves, and by combining these functional pieces you can design a purposeful object.
Understanding Scenes: To manage all game objects, you use Scenes. When you have added a game object along with various components, the Scene is what knows their relation to each other and combines it all into an interactive game.
All game objects added will be shown in the Hierarchy and portrayed in the Scene and Game views. Learn more about the basic terminology in the upcoming section, Scene Management.
In this certification, you will experience having two Scenes loaded concurrently. This is referred to as Multi-Scene Editing and simply allows you to have multiple Scenes added in the Hierarchy. If you want to learn more about Multi-Scene Editing outside the scope of this certification, you can visit https://docs.unity3d.com/Manual/MultiSceneEditing.html.