Unity Unity 5

Question 1

What is object pooling primarily used to optimize?

Accepted Answer

Frequent instantiation and destruction overhead

Answer

Lighting quality

Answer

Audio mixing

Answer

Shader compilation

Question 2

Which statement about Vector3.Lerp is correct?

Accepted Answer

It linearly interpolates between two points by a 0-1 factor

Answer

It rotates a quaternion

Answer

It normalizes a vector

Answer

It returns a random direction

Question 3

What does marking a field 'public' on a MonoBehaviour do by default?

Accepted Answer

Exposes it in the Inspector and to other scripts

Answer

Hides it from the Inspector

Answer

Makes it constant

Answer

Disables serialization

Question 4

Which approach avoids per-frame garbage when comparing tags?

Accepted Answer

gameObject.CompareTag("Enemy")

Answer

gameObject.tag == "Enemy"

Answer

tag.Equals via reflection

Answer

string.Concat on tags

Question 5

What is the NavMesh used for in Unity?

Accepted Answer

AI pathfinding and agent navigation

Answer

Baking lightmaps

Answer

UI layout

Answer

Particle simulation

Question 6

Which best describes the difference between world space and local space rotation?

Accepted Answer

World space is relative to the scene origin; local space is relative to the parent

Answer

They are always the same

Answer

Local space ignores the parent

Answer

World space only applies to UI

Question 7

What does setting Time.timeScale to 0 do?

Accepted Answer

Pauses time-dependent updates like physics and WaitForSeconds

Answer

Speeds up the game

Answer

Resets the scene

Answer

Disables rendering