Computer Science · Oct / Nov 2016 · Paper 13 · Question 3

Five computer terms and seven descriptions are shown below. Draw a line to connect each computer term to its correct description. An error detection method that uses response and time out when transmitting data; if a response is not sent back to the sender in an agreed amount of time, then the data is re-sent Several bits of data sent down several wires, in both directions, but not at the same time Serial, simplex data transmission Description Computer term Several bits of data sent down several wires, in both directions, at the same time An even or odd number of bits set to 1 in a byte, used to check if the byte has been transmitted correctly One bit sent at a time, over a single wire in one direction only An additional digit placed at the end of a number to check if the number has been entered correctly A value transmitted at the end of a block of data; it is calculated using the other elements in the data stream and is used to check for transmission errors Parallel, half-duplex data transmission Parity check Automatic repeat request (ARQ) Checksum [5]

Read automatically from the paper; the printed page above is exact.