Questions

1. Define the following terms:

   • (a) Clipping (Appeared in: 2009, 2013, 2014, 2015, 2017, 2019, 2021)
   • (b) Shielding (Appeared in: 2009, 2015, 2019)
   • (c) Viewports (Appeared in: 2009, 2014, 2019)
   • (d) Windows
   • (e) Aspect ratio (Appeared in: 2013, 2019)

2. Write and explain the Cohen-Sutherland line clipping algorithm.

   Or, Describe the Cohen-Sutherland algorithm procedure for categorizing a line segment.

3. Explain the Sutherland-Hodgman algorithm for clipping a polygon.

   (Appeared in: 2010, 2015, 2016, 2017, 2020)

4. How does the Cohen-Sutherland line clipping algorithm work to detect a line for clipping?

   (Appeared in: 2021)

5. Convert Window-to-Viewport coordinates.

   (Appeared in: 2021)

Let me know if further adjustments are needed!