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for stop and wait ARP,for n data packets sent ___acknowledgements needed.

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For stop and wait ARP the sender sends the data and waits for the acknowledgement from the reciever. The reciever recieves the data and sends the acknowledgement with the sequence number of the next packet the reciever has to recieve from the sender.The sender recieves the acknowledgement and after the acknowledgement has been recieved the sender sends the next packet. So for n packets n acknowledgements need to be sent.

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