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- In an RPC-like protocol, where numerous requests can be active at the same time and responses can be given in any sequence, the following is possible: Pretend requests are sequentially numbered, and that ACK[N] confirms the receipt of reply[N]. Should the number of ACKs be cumulative? If not, what should happen in the event that an ACK is not received?One of the problems with timeout-triggered retransmissions is that the time-out period can be relatively long. When a segment is lost, this long timeout period forces the sender to delay resending the lost packet, thereby increasing the end-to-end delay. Is there any remedy for this?In an RPC-like protocol in which multiple requests can be outstanding, and replies can be sent in any order: Assume that requests are numbered and that ACK[N] acknowledges reply[N]. Should ACKs be cumulative? If not, what should happen if an ACK is lost?
- One of the problems with timeout-triggered retransmissions is that the timeout period can be relative long. When a segment is lost, this long timeout period forces the sender to delay resending the lost packet, thereby increasing the end-to-end delay. Is there any remedy for this?Given the maximal number of the binary sequence MAX SEQ (e.g., MAX SEQ=7 for three bits), what are the expression (in term of MAX SEQ ONLY) of the maximal sizes of sending window for Go-back-N and Selected-Repeat Protocols? You need to demonstrate the counter-examples on why window sizes larger than the maximum can fail.Are the TCP receive buffer and the application buffer on the client exactly the same thing when HTTP streaming is being used? How are they supposed to behave toward one another if they are unable to converse with one another?
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- In an RPC-like protocol, many requests can be active at the same time, and responses can be sent in any order: Assume that requests are sequentially numbered and that ACK[N] acknowledges reply[N]. Should ACKs be added up? If not, what should happen if an ACK is not received?What relationship is needed between sequence number size and window size to avoid problem in recognizing between new transmission and re-transmission in the SR protocol?what is the relationship between sequence size and window size to avoid problems in recognizing between new transmission and re-transmission in the sr protocol mathematically justify your answer?