Computer Networking
Parity bit is

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
the ratio of the number of data units in error to the total number of data units
a check bit appended to an array of binary digits to make the sum of all the binary digits.
None of these
an error-detecting code based on a summation operation performed on the bits to be checked.

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Computer Networking
Which of the following is true regarding VTP?

All switches are VTP servers by default.
All switches are VTP clients by default.
All switches are VTP transparent by default.
VTP is on by default with a domain name of Cisco on all Cisco switches.

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