Problem 1: Encoding Scheme (35 pts)

Assume we have bit sequence (32 bits): 0101 0010 0110 1111 0110 0011 0110 1011

1. Encode the above bit sequence using the NRZ encoding scheme. What is the issue that the NRZ encoding scheme might face? Limit your answer to 2 lines (5 pts)

2. Encode the bit sequence using the NRZI encoding scheme. How is this encoding scheme better than the NRZ scheme? Limit your answer to 2 lines (10 pts)

3. How many bits need to be transmitted if we use 4B/5B encoding scheme? (10 pts)

4. If this bit sequence represents a string of ASCII characters, what is the textual information? (Note the uppercase and lowercase issue) (10 pts)