Least administrative efforts to enable users is to configre NS2 as well as NS3 to utilize NS1 like a forwarder, because doing this will consequence in successful name resolution for internal users. (Mackin & McLean, 2006). On the other hand disabling recursion on NS2 as well as NS3 will require most efforts from the administrator as it will will compel NS2 and NS3 to employ iterative queries.
Answer To the Question # 2
The DHCP server have to be authorized which is not, this is the reason that users are unable to get ...