Unity Unity Scripting and C#

Question 1

What is the base class for all Unity scripts that attach to GameObjects?

Accepted Answer

MonoBehaviour

Answer

MonoBehaviour is the base class for Unity component scripts, providing lifecycle methods like Start(), Update(), and OnEnable().

Question 2

In Unity C#, what is a Coroutine used for?

Accepted Answer

Pausing execution and resuming it over multiple frames without blocking the main thread

Answer

Coroutines use IEnumerator and yield return statements to spread execution across multiple frames while remaining on the main thread.

Question 3

What does the [SerializeField] attribute do in Unity?

Accepted Answer

Makes a field visible in the Inspector even if it is private

Answer

[SerializeField] exposes a private field in the Unity Inspector without changing its access modifier, maintaining encapsulation.

Question 4

Which Unity event function is called exactly once when a script's GameObject first becomes active?

Accepted Answer

Start()

Answer

Start() is called once before the first frame Update() if the script component is enabled, making it ideal for initialization that depends on other objects being ready.

Question 5

What is the purpose of the 'static' keyword on a Unity C# field?

Accepted Answer

It makes the field shared across all instances of the class rather than per-instance

Answer

A static field belongs to the class itself rather than any individual instance, so all scripts share the same value regardless of how many exist.

Unity Practice Test

Unity Practice Test

Unity Unity Scripting and C#