Distinguish between buffering and caching, Basic Computer Science

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QUESTION

(a) Describe what you understand by (i) "openness" and (ii) "Scalability" of a distributed system

(b)What is the role of middleware in a distributed system?

(c) Give an example of a URl and List three main components of the URL, stating how their boundaries are denoted and illustrating each one from your example. To what extent is a URL location transparent?

(d) Distinguish between buffering and Caching.

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