Selectingafixedretransnussiontimeforallconnectionscanresultinseriousconsequences.Iftheretransmissiontimedoesnotallowenoughtimefora(73)toreachthedestinationandanacknowledgmenttoreachthesource,itcanresultinretransmissionofsegmentsthatarestillontheway.Conversely,iftheretransnussiontimeislongerthannecessaryforashortpath,itmayresultindelayfortheapplicationprograms.
A.process
B.segment
C.program
D.user
正确答案是B