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1. Througput = data size/ TT + 2PT  or  data size/ 2PT.??

2. What are the minimum number of interfaces required in a router?

3. Why we have a separate flow control at TCP layer when we already have it in DLL?

4. What is the difference between efficiency of ethernet and the efficiency in flow control methods?

5. What is the formula of throughput in ethernet?

6. Are RTT timer and TO timer same?

7. When we are DLL, we have the all the headers of above layer and the message sent from application layer. so, my question is can we read the message if no encryption is used?

8. We say about mac address, that if the last bit in first octet is 1, then it is multicasting orelse unicast. But mac address is fixed, so, how can we say this?

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taurus05 asked Nov 27, 2021
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I read the PDF but couldn't find anything mentioned about it. Kindly confirm.