When connectionless protocols are implemented at the lower layers of the OSI model, what is usually used to acknowledge that the data was received and to request the retransmission of missing data?
- IP
- UDP
- Ethernet
- a connectionless acknowledgement
- an upper-layer, connection-oriented protocol or service
Exam with this question: Network Fundamentals - CCNA Exploration 1: ENetwork Final Exam
Please login or Register to submit your answer