please explain the questions in easy words with diagrams because i am not understanding.

The name of the subject is Distributed Operating System

1. (a) Scalability can be achieved by applying different techniques. Discuss those techniques. (b) Explain what is meant by (distribution) transparency, and give examples of different types of transparency. When a node synchronizes its clock to that of another node, it is generally a good idea to take previous measurements into account as well. Discuss with an example of how such past readings could result in approximate synchronization. 2