Data Communication
Haryana Board · Class 12 · Computer Science
Practice quiz for Data Communication — Haryana Board Class 12 Computer Science. MCQs and questions with answers to test your preparation.
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What are the five essential components of data communication?
In which type of communication can data flow in both directions but not simultaneously?
What is the unit of measurement for bandwidth?
What does HTTP stand for?
Sample Questions
Which of the following are examples of guided transmission media?
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Twisted pair cable, Coaxial cable, Optical fiber cable
Guided transmission media use physical cables/wires. Twisted pair, coaxial, and optical fiber are all physical cables. Radio waves and microwaves are unguided (wireless) media.
In circuit switching, what happens before communication starts?
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A dedicated path is established
In circuit switching, a dedicated path is identified and established between sender and receiver before communication starts. All data follows this same path.
Which wireless technology is used for short-range communication within 10 meters?
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Bluetooth
Bluetooth is a short-range wireless technology that works within 10 meters, used to connect devices like phones, headphones, keyboards, etc.
Which mobile generation first introduced digital voice transmission?
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2G
2G mobile networks introduced digital voice transmission instead of analog signals used in 1G. This provided better call quality and enabled SMS services.
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