Networks and Addressing (a) (3 points) For each of the following subnet addresses, provide an example of an IP Address that can be assigned to that subnet, and one that cannot. (b) (2 points) Because Network Address Translation (NAT) violates the end to end principle of the Internet, initiating connections to addresses behind NAT routers is problematic. Name one of the techniques that can be used used to overcome this problem, and briefly describe how it works