1) What do you have to do to information before transmitting it? a) Compress it into a smaller size b) Convert it into an electrical signal c) Make duplicates of it 2) What is "noise"? a) A type of data transmission b) A sound that speakers make c) Unwanted signals that disturb a transmission 3) What is an example of an Input Transducer? a) An iron b) A camera c) A lightbulb 4) Which is not an example of a communication medium? a) Optic fibres b) Radio waves c) AUX cord 5) ________ is exactly opposite to transmission a) Reception b) Conversion c) Sampling 6) What is "bandwidth"? a) The frequency range over which an equipment operates or the portion of the spectrum occupied b) A device that converts one form of energy into another c) Information converted in electrical form and suitable for transmission 7) __________ is the process of increasing the amplitude & strength of a signal using an electronic circuit. a) Modulation b) Transmission c) Amplification 8) Which of these is in the correct order? a) input transducer > communication channel > transmitter b) transmitter > input transducer > communication channel c) input transducer > transmitter > communication channel 9) A ________ extracts the desired message signals from the received signals at the channel output. a) Receiver b) Transmitter c) Repeater 10) A receiver consists of circuits like a(n) _______. a) Amplifier b) Parallel c) Series

Communication Systems 101

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