Distinguish between connection-oriented and connectionless protocols

Connection-oriented protocol	Connectionless protocol
(i) In connection-oriented communication there is need to establish connection between source (sender) and destination (receiver) before data transfer.	(i) In connectionless communication there is no need to establish connection between source (sender) and destination (receiver).
(ii) Connection-oriented communication is more reliable than connectionless communication.	(ii) Connection less communication is less reliable than connection-oriented communication.
(iii) In connection-oriented communication information can be resend if there is an error in receiver side (missing data).	(iii) In connection less communication it is not possible because the destination does not inform the source about data is received or not.
(iv) Connection-oriented communication has higher overhead and place greater demands on bandwidth.	(iv) In connectionless communication requires for less overhead than connection-oriented communication.