lear selection Which of the following statements is true for go-back-n ARQ
1 Bad frame is discarded but good frames received after it are accepted and buffered 2Data Link Layer refuses to accept any frame except the next one it must give to the о O network layer
3Sender sends a frame and wait for its acknowledgement before sending the next one
4When the sender times out only the oldest unacknowledged frame is transmitted
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Our mothers are like a security blanket to us because she saves us from all problems. She never regards her own problems and listens to us all time. In order to give her respect, the second Sunday of May month has been dedicated to her to celebrate mother's day. This event is of great importance to us and our mothers.Ruma had a piece of ribbon she cut the ribbon into four pieces measuring 16/3 cm ,9/4 cm,28/6 cm,and 38/8 cm.find the length of the ribbon
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