Computer Networking
Eight stations are competing for the use of the shared channel using the modified Adaptive free walk protocol by Gallager. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?

10 slots
1 slots
14 slots
None of these
5 slots

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Computer Networking
Parity bit is

a check bit appended to an array of binary digits to make the sum of all the binary digits.
the ratio of the number of data units in error to the total number of data units
an error-detecting code based on a summation operation performed on the bits to be checked.
a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
None of these

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Computer Networking
The application layer of a network

consists of software being run on the computer connected to the network
None of these
defines the user's port into the network
establishes, maintains, and terminates virtual circuits
All of these

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