Questions and Answers
Which of the following characteristics is NOT fundamental for the effectiveness of a data communications system?
Interference
Which of the following is an example of unguided media for wireless transmission?
Satellite communication
In computer networking, what does OSI stand for?
Open Systems Interconnection
What is the primary function of circuit switching in data communications?
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What does TCP/IP stand for in reference to network models?
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What is the term used to describe the uneven delay in the delivery of audio or video packets?
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Which coding system uses 32 bits to represent a symbol or character used in any language in the world?
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What is the physical path by which a message travels from sender to receiver known as?
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In data communications, what is represented as a bit pattern?
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What is the device that sends the data message in a data communications system called?
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Study Notes
Data Communications System
- Effectiveness of a data communications system does not fundamentally rely on a specific characteristic (implying that other characteristics are crucial)
Wireless Transmission
- Unguided media example: wireless transmission
OSI Model
- OSI stands for Open Systems Interconnection
Circuit Switching
- Primary function of circuit switching in data communications: dedicated communication path between sender and receiver
TCP/IP
- TCP/IP stands for Transmission Control Protocol/Internet Protocol in reference to network models
Packet Delivery
- Term used to describe uneven delay in delivery of audio or video packets: jitter
Unicode Coding System
- Unicode coding system uses 32 bits to represent a symbol or character used in any language in the world
Message Path
- Physical path by which a message travels from sender to receiver is known as a channel
Data Representation
- In data communications, a bit pattern represents data, text, images, or other forms of information
Data Communication Device
- Device that sends the data message in a data communications system is called a transmitter
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