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QUESTION 3 (a) Explain the time-to-live (TTL) concept as used in routing. (6 marks) (b) A sender has a total of ten frames to transmit

QUESTION 3

(a) Explain the time-to-live (TTL) concept as used in routing. (6 marks)

(b) A sender has a total of ten frames to transmit starting at number 0 with the window size is 5 and Module 8 for sequence numbering. Document the flow of frames if selective-repeat sliding window mechanism is used. 7th and 9 th frames developed errors.

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