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Data and Digital Communication Basics
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1
Question
What is the process of communication?
Page 1
Answer
Exchanging data and information between two or more devices through a specific medium like wires or radio waves.
2
Question
What types of information can be exchanged in communication?
Page 1
Answer
Voice (phone calls), Video (video conference), Data (files, messages), Codes (program commands).
3
Question
What is the meaning of voice in communication information?
Page 1
Answer
Phone calls.
4
Question
What is the meaning of video in communication information?
Page 1
Answer
Video conference.
5
Question
What is the meaning of data in communication information?
Page 1
Answer
Files, messages.
6
Question
What is the meaning of codes in communication information?
Page 1
Answer
Program commands.
7
Question
What are the three main components of a typical communication?
Page 1
Answer
Transmitter, Receiver, Communication Medium.
8
Question
What is the meaning of transmitter in communication?
Page 1
Answer
The device that encodes and sends the information.
9
Question
What is the meaning of receiver in communication?
Page 1
Answer
The device used to receive and decode the information.
10
Question
What is the meaning of communication medium?
Page 1
Answer
Wire or wireless component that carries information from transmitter to receiver.
11
Question
What is data communication?
Page 1
Answer
The process of exchanging data between two devices over a transmission medium.
12
Question
What is the note on data communication versus general communication?
Page 1
Answer
All data communication is communication, but not all communication is data communication.
13
Question
What are the elements of data communication?
Page 1
Answer
Message, Sender, Receiver, Transmission Medium, Protocol.
14
Question
What is the meaning of message in data communication?
Page 1
Answer
The actual information to be sent.
15
Question
What is the meaning of sender in data communication?
Page 1
Answer
The device sending the data.
16
Question
What is the meaning of receiver in data communication?
Page 1
Answer
The device receiving the data.
17
Question
What is the meaning of transmission medium in data communication?
Page 1
Answer
The path the data travels.
18
Question
What is the meaning of protocol in data communication?
Page 1
Answer
The agreed rules for communication.
19
Question
What is the note on protocol in data communication?
Page 1
Answer
Without a protocol, two devices might be connected but unable to understand each other.
20
Question
What are the types of data transmission?
Page 1
Answer
Simplex, Half-duplex, Full-duplex.
21
Question
What is the meaning of simplex data transmission?
Page 1
Answer
Data sent from sender to receiver, one-way only.
22
Question
What is an example of simplex data transmission?
Page 1
Answer
Keyboard to Computer.
23
Question
What is the meaning of half-duplex data transmission?
Page 1
Answer
Both ways, but not at the same time.
24
Question
What is an example of half-duplex data transmission?
Page 1
Answer
Walkie-Talkies.
25
Question
What is the meaning of full-duplex data transmission?
Page 1
Answer
Both ways, simultaneously.
26
Question
What is an example of full-duplex data transmission?
Page 1
Answer
Phone calls.
27
Question
What is digital communication?
Page 1
Answer
The exchange of data and information among devices digitally.
28
Question
What does 'digital' refer to in digital communication?
Page 1
Answer
Discrete-time version representation of electronic signals or information signals.
29
Question
What does 'communication' refer to in digital communication?
Page 1
Answer
The process of exchanging information between two or more devices/entities.
30
Question
What are the basic components of digital communication?
Page 1
Answer
Source, Input Transducer, Source Encoder, Channel Encoder, Digital Modulator, Channel, Output Transducer, Output Signal.