DNS can be used to resolve NetBIOS names, but only when the box is checked to enable DNS for NetBIOS name resolution in TCP/IP properties in the Network configuration window.

A CNAME is a method of DNS aliasing. It is normally used to alias a server as www or ftp.

Windows NT is able to list up to three DNS Servers in its network properties.

If a DNS Server is queried, but is unable to resolve the host name, it will return a negative acknowledgement to the querying computer. The querying computer will then attempt another method of name resolution, rather than trying the other DNS Servers.

If a DNS Server is queried, but is unable to be located, the querying computer will then attempt to contact the next DNS Server in the list.

A DNS Server can be setup to be a zone transfer server. Zone transfer will allow the DNS Server to query other DNS Servers if it is unable to resolve the request.

• Secondary DNS server - A Secondary DNS server uses Zone Transfers to collect the DNS database from it's Primary DNS Server.
• Caching DNS Server - A Caching DNS Server does not maintain any static DNS records. All of it's records are created by resolving DNS queries to a Primary or Secondary DNS server. Caching DNS servers thus add redundancy to the DNS namespace.