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Computer Networking

Computer Networking
If you get both local and remote echoes, every character you type will appear on the screen

never
None of these
once
three times
twice

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Computer Networking
Which layer of international standard organization's OSI model is responsible for creating and recognizing frame boundaries?

physical layer
None of these
network layer
data link layer
transport layer

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Computer Networking
Which of the following best illustrates the default subnet mask for a class A,B, and C Network?

None of these
0.0.0.0, 0.0.0.1, 0.0.1.1
255.0.0.0, 255.255.0.0, 255.255.255.0
255.255.0.0, 255.255.255.0, 255.255.255.255
255.255.255.0, 255.255.0.0, 255.0.0.0

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Computer Networking
A 4 KHz noiseless channel with one sample every 125 per sec, is used to transmit digital signals. Find the bit rate (bits per second) that are sent, if CCITT 2.048 Mbps encoding is used.

32 Kbps
64 Kbps
500 Kbps
8 Kbps
None of these

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Computer Networking
With an IP address starting at 200, you currently have 10 subnets. What subnet mask should you use to maximize the number of available hosts?

192
248
224
240
252

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Computer Networking
What keystroke will terminate setup mode?

Ctrl+Z
Ctrl+^
Ctrl+Shift+^
Ctrl+C

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