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QUESTION 9 Which of the following layers is the lower than the other layers? a. Session b. Presentation C Network d. Data Link QUESTION 10

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QUESTION 9 Which of the following layers is the lower than the other layers? a. Session b. Presentation C Network d. Data Link QUESTION 10 The polarities in NRZ format use a. Complete pulse duration O b. Half duration O c. Both positive as well as negative value d. Each pulse is used for twice the duration

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