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1.What is a network? What are the six main elements and their functions of a typical network? Explain each one. What devices are used in layers 1-3? What is a message called in layer 2? Layer 3?

2. What is a circuit? Describe the two-wire and four-wire circuits. What is a signal? What devices boost a weak signal (discuss both signals)? What is a channel?

3. Differentiate between the following multiplexing techniques in terms of mechanics, technology, and applications:

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Computer Network & Security, Computer Science

Category:- Computer Network & Security
Reference No.:- M9454295

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