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Question 9 [7+3]PART AFour stations share the link during a 1-bit interval. We assume that station 1 and station 4 aresending a 0 and 1 respectively, station 2 and 3 are silent. Show graphically whole process forCDMA transmitter and receiver side?PART BCompare and contrast CSMA/CD and CSMA/CA?Data Communication & Networks MID Term Exam, Summer 2007 Page 10 of 11

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