Computer Networking
Synchronous protocols

allow faster transmission than asynchronous protocols do
None of these
are generally used by personal computers
transmit characters one at a time
are more reliable

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
RS-449/442-A/423-A is

a check bit appended to an array of binary digits to make the sum of the all the binary digits
the ratio of the number of data units in error to the total number of data units
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
a set of physical layer standards developed by EIA and intended to replace RS-232-

ANSWER DOWNLOAD EXAMIANS APP