How many views are there for 2D and 3D in AutoCAD?

Question: 

How many views are there for 2D and 3D in AutoCAD?

Answer: 

There Are Mainly Three Views For 2D Drawings which are mentioned below-

1. Front/Elevation Views
2. Top Views
3. Side Views (Left & Right)

And Other Views Are Also Use For Preparing Drawing Sheets Such As Section Views, Details Views, Enlarged Views.

There Are Mainly Nine Views For 3D Model which are mentioned below-

1. Front View
2. Back View
3. Top View
4. Bottom View
5. Left View
6. Right View
7. Isometric View
8. Diametric View
9. Trimetric View

in some special cases others view are also used such as Wireframe View, Shaded View, Hidden Line View and Realistic View etc.