NW 6.5 SP5 server running named for company.com domain. I have setup the
forwarder which is my ISP's name server. My understanding is if the DNS
query for DNS record for company.com the NW 6.5 server will return the
result. If the query is for names outside the company.com domain i.e.
www.ibm.com, it will forward the query to the forwarder. Is my assumption

If that's the case, when would the NW named server using the root zones?