Show the NRZ encoding for the following bit pattern. Bits 0 1 0 0 1 1 0 1 1 0 1 0 1 1 1 1 I I I 1 I I I 1 1 1 1 I 1 I 1 1 1 II I 1 I I 1 II NRZ Clock Question 2. How does clock drift occur? Man II I Clock Question 3. Show the Manchester encoding for the following bit pattern. Bits 1 0 0 0 1 0 1 1 0 0 1 1 0 1 1 0 1 III II I !! 1 1 I I I ! 1 1 ! 1 1 1 1 1 I I I 1 1 1 I I II Question 4. Why is Manchester encoding only 50% efficient? What is the efficiency measured against? Question 5. Show the NRZI encoding for the following bit pattern. Assume the signal starts low. Bits 1 0 0 0 0 1 0 1 1 0 0 1 1 0 1 0 I I I I I I I 1 1 I NRZI Clock Question 6. What NRZ problem does NRZI encoding fix? 1 I 5B 11110 01001 10110 01111 01010 Bits Question 7. Show the 4B/5B encoding and draw the resulting NRZI signal for the following bit sequence. Assume the NRZI sequence starts high. 4B 0000 0001 1010 0111 0100 NRZI Clock 1 I 1 1 1 Question 8. Explain why NRZI with 4B/5B encoding is more efficient than Manchester encoding?