Kizspy | Question: 18
(Choose 1 answer)
When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if necessary?
A. Connectionless acknowledgements are used to request retransmission.
B. Upper-layer connection-oriented protocols keep track of the data received and can request retransmission from the
upper-level protocols on the sending host.C. Network layer IP protocols manage the communication sessions if connection-oriented transport services are not
available.
D. The best-effort delivery process guarantees that all packets that are sent are received.
