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Questions and Answers
Which of the following is an example of a medium in a data communications system?
Which of the following is an example of a medium in a data communications system?
- Printer
- Operating system
- Fibre optics (correct)
- Mainframe
What is the role of the destination in a data communications system?
What is the role of the destination in a data communications system?
- Provider of the medium
- Transmitter of the data
- Receiver of the transmitted data (correct)
- Controller of the source
Which of the following is an example of a source in a data communications system?
Which of the following is an example of a source in a data communications system?
- Printer
- Radio Frequencies (RF)
- Computer (correct)
- Fibre optics
What is the purpose of interfaces in a data communications system?
What is the purpose of interfaces in a data communications system?
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Which layer of the OSI model is concerned with the physical transmission of data?
Which layer of the OSI model is concerned with the physical transmission of data?
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Study Notes
Data Communications System Concepts
- Medium: An example would be a network cable or wireless signal that transmits data between devices.
- Destination: The endpoint in a data communications system that receives the information sent from the source.
- Source: An example includes a computer or sensor that generates data to be communicated to another device.
- Interfaces: Serve as intermediaries allowing different systems to communicate, translating commands and signals between hardware and software.
- OSI Model - Physical Layer: Responsible for the actual transmission of raw data over a communication medium, dealing with hardware aspects like cables and signaling.
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