Computer Networking
Error detecting code is

the ratio of the 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
None of these
a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
a check bit appended to an array of binary digits to make the sum of all the binary digits.

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Computer Networking
Which of the following is true when describing a unicast address?

Packets addressed to a unicast address are delivered to a single interface.
These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
These are like private addresses in IPv4 in that they are not meant to be routed.
These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.

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Computer Networking
MAC is

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

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