Question One IT 210 For the following four scenarios, explain your answer with valid reason. (i) A cable which was not properly attached with the hub is accidentally pulled out from hub in star topology. Will this network work? (ii) Due to fluctuation in light, a centralized hub is burnt in star topology. Although all connected devices and cables are unaffected, will these devices be able to access the network? (iii) A loose terminator gets separated from cable making it open at one end in Bus topology. Will this network work as expected? (iv) A cable which connects two devices in Ring topology broke. Will remaining devices work normally? (v) 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 Answer 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. Answer 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. Answer