Please don't use AI   Using the CRC polynomial 1101, compute the CRC code word for the information word 10110 (the actual string that will be sent to the receiver). Provide the “reverse” calculation for the receiver to prove that the string received is in fact correct.

If the sequence number space contains k bits, think about using both the Go-Back-N and selective-repeat techniques. What is the largest sender window that is permitted?

The erroneous data and control bits were received as 1110101 with a 1 bit error. This format uses D4 D3 D2 C3 D1 C2 C1 where Ds are data bits and Cs are control bits. Find the original error free 4 bit data by VENN diagram. (help: place the bits as shown in the figure. Numbers are bit positions starting from the right). You have to show your solution steps.

If an ASCII string has an 8-bit truncated sum of 0x48, what is the value of the checksum byte for the string? Explain your answer.