Use the format in the second picture to solve subtask c. (The TCP handshake)

b. (3 points) Given: The TCP header i. Which fields in the header are used to identify a service (or process)? ii. In which bit interval is the checksum located? Use the interval notation (i.e., [i,j] for the range from bit i to bit j, where the bit index starts at 0 ). c. (3 points) In the exam template for the TCP handshake, complete the diagram to illustrate the message exchange of a TCP 3-Way Handshake. Use arbitrary but suitable sequence- and acknowledgement numbers. d. (1 point) How can (packet) duplicates be avoided in context of a TCP-based data transfer? Hint: You may use the following box to take notes