When connectionless protocols are implemented at the lower layers of the OSI model, what are usually used to acknowledge the data receipt and request the retransmission of missing data?

Jul 2, 2020 Last Updated: Jul 2, 2020 No Comments

IT Questions Bank › When connectionless protocols are implemented at the lower layers of the OSI model, what are usually used to acknowledge the data receipt and request the retransmission of missing data?

Question:
When connectionless protocols are implemented at the lower layers of the OSI model, what are usually used to acknowledge the data receipt and request the retransmission of missing data?

connectionless acknowledgements
upper-layer connection-oriented protocols
Network layer IP protocols
Transport layer UDP protocols

Exam with this question: CCNA 1 (v5.1 + v6.0) Chapter 6 Exam Answers