Data Communication Quiz

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Questions and Answers

What are examples of communication channels mentioned in the text?

Satellite communication, Bluetooth, NFC, and Ethernet
Telephone lines, coaxial cables, Bluetooth, and NFC
Fiber optics, microwave communication, satellite communication, and Ethernet
Copper wires, optical fibers, wireless communication using radio spectrum, and computer buses (correct)

What is analog transmission?

A method of conveying data using a discontinuous signal
A method of conveying information using a digital signal
A method of conveying only voice information using a continuous signal
A method of conveying voice, data, image, signal or video information using a continuous signal which varies in amplitude, phase, or some other property (correct)

How are the data represented in data communication?

As a binary signal
As an electromagnetic signal, such as an electrical voltage, radiowave, microwave, or infrared signal (correct)
As an analog signal only
As a digital signal only

What are the two methods mentioned for representing messages in analog transmission?

By a sequence of pulses using a line code (baseband transmission) or by a limited set of continuously varying waveforms (passband transmission) (C) Signup and view all the answers