Computer Networking
CSMA (Carrier Sense Multiple Access) is

None of these
a very common bit-oriented data link protocol issued by ISO.
a method of determining which device has access to the transmission medium at any time
a method access control technique for multiple-access transmission media.
network access standard for connecting stations to a circuit-switched network

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

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

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