Describe the automatic repeat request protocol, Computer Networking

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Question 1:

(a) In networking, there are different possible topologies. Explain the Linear bus, Ring and Star topology along with their advantages and disadvantages.

(b) Write down the different modes of transmissions across a network connection. Explain one of them in details.

Question 2:

(a) Describe the OSI Model.

(b) Describe the Automatic Repeat Request Protocol.

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