Using the Unix utility traceroute (on tracert on Windows), answer the following questions [2 pts each]:(a) How many hops exist between your host and facebook.com?(b) What happens if you traceroute to an unassigned IP address?(c) Explain briey how traceroute works. [Consult the traceroute manual page].(d) Suppose that our networking class consisted of 10,000 students who live in dierent parts of the world (anonline class! :). If each one provided you with their traceroute data to facebook.com, explain a meaningfulway to integrate this information together to draw an Internet map. Which part of this map would be themost accurate?