
IT Topic 9
Authored by Fathin Aziz
Computers
University

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the four basic elements of communication?
Sender, Receiver, Media, Message
Coder, Decoder, Signal, Noise
Data, Information, Transmission, Reception
Input, Output, Process, Feedback
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a coder in a communication system?
To detect errors in the message
To transmit the message
To encode the message for the media
To decode the message for the receiver
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which mode of data transmission sends data one bit at a time?
Synchronous Transmission
Serial Transmission
Asynchronous Transmission
Parallel Transmission
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of data flow direction allows data to move in both directions simultaneously?
Half Duplex
Full Duplex
Simplex
Unidirectional
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of digital signals?
Continuous waveforms
Used in low-speed telephone lines
Two states: low and high voltage
Represented as sine waves
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of an error detector in communication?
To enhance signal strength
To ensure data integrity
To transmit data faster
To encode messages
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of cable is commonly used for telephone communications?
Microwave System
Twisted Pair Wire
Fibre Optic Cable
Coaxial Cable
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