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Which of the following statements about digital-to-digital encoding are CORRECT? i. polar encoding uses three voltage levels: positive, negative and zero ii. the disadvantage of RZ encoding is that it requires two signal changes to encode one bit and therefore occupies more bandwidth ii.in Differential manchester encoding the presence of a transition at the start of the bit encodes 1 iv.a good encoded digital signal must contain a provision for synchronization Answer o ii O i, iv O i, iv O ii, i

Which of the following statements about digital-to-digital encoding are CORRECT? i. polar encoding uses three voltage levels: positive, negative and zero ii. the disadvantage of RZ encoding is that it requires two signal changes to encode one bit and therefore occupies more bandwidth ii.in Differential manchester encoding the presence of a transition at the start of the bit encodes 1 iv.a good encoded digital signal must contain a provision for synchronization Answer o ii O i, iv O i, iv O ii, i

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Which of the following statements about digital-to-digital encoding are CORRECT? i. polar encoding uses three voltage levels: positive, negative and zero ii. the disadvantage of RZ encoding is that it requires two signal changes to encode one bit and therefore occupies more bandwidth ii.in Differential manchester encoding the presence of a transition at the start of the bit encodes 1 iv.a good encoded digital signal must contain a provision for synchronization Answer o ii O i, iv O i, iv O ii, i
Transcribed Image Text:Which of the following statements about digital-to-digital encoding are CORRECT? i. polar encoding uses three voltage levels: positive, negative and zero ii. the disadvantage of RZ encoding is that it requires two signal changes to encode one bit and therefore occupies more bandwidth ii.in Differential manchester encoding the presence of a transition at the start of the bit encodes 1 iv.a good encoded digital signal must contain a provision for synchronization Answer o ii O i, iv O i, iv O ii, i
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