I asked a question yesterday and it got closed with 2 negative votes, I am not sure why it has been closed and how can I improve it,

http://serverfault.com/questions/510940/what-should-my-ip-address-be-for-my-dns-or-how-can-i-set-it-up

whereas there is a similar questions with +1 and +3 vote(s) and they are even not closed, there's just minor differences,

How do you set up DNS in Window Server 2008 in a Hyper-V environment?

What DNS records should I set up for a new server?