Computer Networking
Which of the following communications modes support two-way traffic but in only one direction of a time?

half-duplex
three-quarters duplex
full-of the above
simplex
None of these

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Computer Networking
You copy a configuration from a network host to a router's RAM. The configuration looks correct, yet it is not working at all. What could the problem be?

You copied the wrong configuration into RAM.
The IOS became corrupted after the copy command was initiated.
The copy did not override the shutdown command in running-config.
You copied the configuration into flash memory instead.

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Computer Networking
Which of the following summation operations is performed on the bits to check an error-detecting code?

Coder-decoder
Attenuation
Checksum
Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Codec

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