Web Science/Part1: Foundations of the web/Internet Protocol/Motivation for IP/quiz

1 What does the robustness principle say?

	The internet should be built in a decentralized way to have no single point of failure.
	Be conservative in what you do, be liberal in what you accept from others.
	Be conservative in what you send, be liberal in what you accept
	The Internet protocol should be so lightweight that its byte code can easily be used on any router.
	There must exist at least 3 disjunctive different routes between each pair of hosts on the internet.

2 Which core problems have been addressed while designing the Internet Protocol

	Creating a reliable protocol to transfer data between any two computers as long as they are connected via some route
	Enable hosts on two different networks to communicate with each other.
	Creating a tool for decentralized fail-proof communication between hosts.
	Fight the short comings of Ethernet by creating a way for hosts to communicate over links which are longer than 1 kilometer.

3 What are the advantages of segmenting networks?

	Package switching protocols on a shared medium will result in too many collisions if the network is not segmented.
	Every network can use its own link layer protocol.
	Securing Ethernet packages will become possible through segmentation.
	Computer viruses will not be able to spread over network boundaries.