Computer Networking
If a firm wanted to transmit data from 1,000 punched cards to a remote computer, they would use a(n)

None of these
batch processing terminal
data collection terminal
intelligent terminal
POS terminal

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Computer Networking
Bus is

one or more conductors that some as a common connection for a related group of devices
a collection of interconnected functional units that provides a data communications service among stations attached to the network
the condition when two or more stations attempt to use the same channel at the same time
None of these
a continuous frequency capable of being modulated or impressed with a second signal

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Computer Networking
HDLC (High-level Data Link Control) is

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

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

a set of physical layer standards developed by EIA and intended to replace RS-232-
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
a check bit appended to an array of binary digits to make the sum of the all the binary digits
None of these
the ratio of the number of data units in error to the total number of data units

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