4. In this chapter we made the statement that IPv6 would provide “more Internet addresses than we are ever likely to need”. Do a search to find out how many addresses it will actually provide, and...

4. In this chapter we made the statement that IPv6 would provide “more Internet addresses than we are ever likely to need”. Do a search to find out how many addresses it will actually provide, and decide whether you agree with that statement. On the basis of the preceding exercise, formulate a best practice that you (and all web developers) should follow consistently.