158235 Networks, Security and Privacy

Address the following questions. 1. Split your student ID number into two 4-digit component, e.g. if your student ID is 02345678, you split it into ‘0234’, and ‘5678’. Then, convert the two decimal numbers (i.e. ‘0234’ and ‘5678’) into their binary representation. You need to show your calculation in how you convert the decimal into binary. (1 mark) 2. Convert your first name, only first 3 characters only, into their ASCII (8-bit version) binary representation. (1 mark) 3. Show how the binary representation of your names, only first 3 characters, is to be modulated using Manchester encoding (1 mark) 4. Take the ASCII of your first character from Q(2). Derive the message being sent when ‘Hamming Code’ is applied (i.e., add the parity bits). Also, assume that there was an error in the 7th bit of your original ASCII code (for example, my original ASCII for my first character was 01001010 -for the Capital ‘J’, but it was received as 01001000 – 7ths bit changed). Describe how you can use the Hamming Code to detect and fix the error (assume using Even Parity)