World Wide Web and Usenet News differ in their method of storing and replicating data. Describe the differences, and the pros and cons of the methods used.

Full score answer:

The main principle of Usenet News is to replicate each document to each server, and the user gets his articles from the local server. In the WWW, documents are primarily stored on one master server, even if caching can be used.

Advantage with WWW: Less storage cost, controlled master copy, long time availability, less censorship.

Advantage with Usenet News: Fast response times, better availability, less network load.

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