• Give your first, last and middle initials. (If you don't have a middle initial, make one up). Put your initials into an 8-bit ASCII format. For ASCII representation of each initial, determine a parity bit assuming even parity.
  Some information on ASCII
• Add up your binary numbers (without the parity bits) to generate an eight-bit checksum. If all possible errors were equally likely, what percentage of errors would be caught by such a checksum? (The calculator found under Accessories on the computer can be put into Scientific View and then Binary mode. A binary number can be entered and converted to decimal by clicking on the Dec radio button.)
• Give the binary (ASCII) code for the three special characters mentioned in connection with byte stuffing.
• If the following graph uses Manchester coding, what is the binary sequence it encodes?
  

• Comer 9.4 (overhead) In most technologies, a sending station can choose the amount of data in a frame, but the frame header is a fixed size. Calculate the percentage of bits in a frame devoted to the header for the largest and smallest Ethernet frames. (Take "header" to mean everything that is not actual data. To find the necessary numbers, refer to Fig. 9.3 in Comer)
• For a computer connected to a LAN, determine the NIC's MAC address, slot type, manufacturer and procotol. How did you arrive at this information?
• Study for Test 1 which will be on Thursday Sept. 30.

Due Sept. 28