What is a circuit describe the two-wire and four-wire, Electrical Engineering

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What is a circuit describe the two-wire and four-wire

Answer the following questions in details

Question 1: What is a circuit? Describe the two-wire and four-wire circuits. What device boosts a weak signal (analog/digital)?

Question 2: What is a channel? Distinguish between a CPE switch and a Network switch.

Question 3: Define virtual circuits (VCs) and PVCs.

Question 4: Define frequency, wavelength, amplitude, phase, and bandwidth.

Question 5: Discuss the characteristics of analog and digital networks.

Question 6: Describe how digital signals are transmitted over an analog circuit and analog signals over digital circuit.

Question 7: Differentiate between the following multiplexing techniques in terms of mechanics, technology, and applications.

(a) FDM; (b) TDM; (c) STDM

What are the key shortcomings of TDM and how does STDM seek to overcome these?

Question 8: Describe WDM/DWDM.

Please keep it simple and short and no copy and paste or at least help me get started?

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Electrical Engineering: What is a circuit describe the two-wire and four-wire

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Electrical Engineering: What is a circuit describe the two-wire and four-wire

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