Answer quickly please 1. Identify the five components of acommunications system.2. What is the main difference between half-duplexand full-duplex transmission modes?3. Why are protocols needed? What are they keyitems?data4. If the data link layer can detect errors betweenhops, why do you think we need another checkingmechanism at the transport layer?5. What does “negotiation" mean when discussingnetwork protocols?22

1) Five components of Data communication system are sender, receiver, transmission medium, message,…

1. Identify the five components of a data communications system. 2. What is the main difference between half-duplex and full-duplex transmission modes? 3. Why are protocols needed? What are they key items?

1. Identify the five components of a data communications system. 2. What is the main difference between half-duplex and full-duplex transmission modes? 3. Why are protocols needed? What are they key items?

Comptia A+ Core 1 Exam: Guide To Computing Infrastructure (mindtap Course List)

10th Edition

ISBN:9780357108376

Author:Jean Andrews, Joy Dark, Jill West

Publisher:Jean Andrews, Joy Dark, Jill West

Chapter8: Network Infrastructure And Troubleshooting

Section: Chapter Questions

Problem 8TC

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Question

Answer quickly please

1. Identify the five components of a
communications system.
2. What is the main difference between half-duplex
and full-duplex transmission modes?
3. Why are protocols needed? What are they key
items?
data
4. If the data link layer can detect errors between
hops, why do you think we need another checking
mechanism at the transport layer?
5. What does “negotiation" mean when discussing
network protocols?
22

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