IT-210 Computer Network / Question Two/ How many of cable links required for the following given network topology? (i) For 9 devices with mesh topology (ii) For 5 devices with bus topology (iii) For 7 devices with ring topology (iv) For 8 devices with star topology

Question Three/ What are the two principles of Protocol Layering? Write and explain in your own words. Answer What is the difference between a port address, a logical address, and a physical address? Write and explain in your on words.

Question Four /Explain all types of transmission impairment in data communication. Do not copy from book, slides and other sources. Answer must be in your own words only.