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17.Microwave transmission, coaxial cables and fiber optic are examples of choose which one is correct?
A. Modems
B. Communication Links
C. Gateways
D. Modems

18.Data communication requires only a choose which one is correct?
A. Sender
B. Receiver
C. Transmission Medium
D. Sender

19.The process of transferring data from one location to another is called choose which one is correct?
A. Data processing
B. Data computing
C. Data communication
D. Data processing

20.The information that is to be transferred from one location to another is called choose which one is correct?
A. Signals
B. Data
C. Sender
D. Signals

21.is component of data communication choose which one is correct?
A. Sender
B. Receiver
C. Encoder and Decoder
D. Sender

22.is not component of data communication choose which one is correct?
A. Medium
B. Voltage
C. Decoder
D. Medium

23.A device that receives messages is called choose which one is correct?
A. Transmitter
B. Receiver
C. Source
D. Transmitter

24.The is the physical path over which a message travels choose which one is correct?
A. Protocol
B. Medium
C. Single
D. Protocol

25.The electromagnetic or light waves representing data are called choose which one is correct?
A. Refraction
B. Information
C. Signals
D. Refraction

26.BIT stands for
A. Binary Integer
B. Binary Digit
C. Binary Interval
D. Binary Integer

27.Communication between a computer and a keyboard involves transmission choose which one is correct?
A. Simplex
B. half-duplex
C. Full-duplex
D. Simplex

28.Light, sound, and radio waves are examples of choose which one is correct?
A. Analog signals
B. Digital signals
C. Simple signals
D. Analog signals

29.The number of times a wave repeats during a specific time interval is called choose which one is correct?
A. Amplitude
B. Oscillation
C. Frequency
D. Amplitude

30.The height of wave within a given period of time is called choose which one is correct?
A. Amplitude
B. Oscillation
C. Frequency
D. Amplitude

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