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Computer Networking

Computer Networking
What is the minimum number of wires required for sending data over a serial communications links?

3
2
1
None of these
4

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Computer Networking
A remote batch-processing operation in which data is solely input to a central computer would require a:

mixedband channel
None of these
simplex lines
telegraph line
All listed here

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Computer Networking
If the ASCII character G is sent and the character D is received, what type of error is this?

single-bit
burst
None of these
recoverable
multiple-bit

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Computer Networking
Which of the following frequency ranges is used for AM radio transmission?

Very Low Frequency : 3 kHz to 30 kHz
None of these
High Frequency : 3 MHz to 30 MHz
Medium Frequency : 300 kHz to 3 MHz
Very High Frequency : 30 MHz to 300 MHz

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Computer Networking
Most networks are connected to other local area or wide area networks. Select the best fit for answer:

Internet works
Internet technologies
255.255.252.0
Internet revolution
The Internet

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Computer Networking
Which of the following does not allow multiple users or devices to share one communications line?

doubleplexer
multipplexer
None of these
controller
concentrator

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