Firstly I am new to Bind9 and I am editing a previously setup version so if I do or say anything stupid please educate me.

My question is can i use my current bind9 nameserver to resolve a new domain name:

my bind9 server currently resolves: subdomain.domain.blah However I would like it to resolve newdomain.co.uk

is it as simple as adding a new A record in my .db file: newdomain.blah A

Thanks in advance.