DNS Generalization

In the 70-291 CBT Nugget series in the DNS sections I believe James Conrad the instructor mentions something like in general to resolve down the DNS hierarchy you would use stub zones or delegation. To resolve up the hierarchy and out to the Internet you would use forwarders/conditional forwarding.
Is this an okay generalization to use for the 70-291 exam when dealing with DNS?
Thanks in advance,
win2k8
Is this an okay generalization to use for the 70-291 exam when dealing with DNS?
Thanks in advance,
win2k8
Comments
Or also if the security policy of the remote DNS system specifies that no DNS information from those hosts can be stored on another server. In that case, you would need to use conditional forwarders.
Don't shoot me on that reason, thats straight from Microsoft
For example, do an nslookup then set type=ns. Then search for any domain you can think of on the internet. You'll get responses from just about all domains. This is why a stub zone would still work. Secondary won't. Heck, you can create a stub zone for microsoft.com, google.com, yahoo.com, etc.. if you want.
As in supplying the IP address for the authoritative DNS server for another DNS domain, as opposed to creating an entire (stub) zone.
You said a policy in place would be another reason why you'd need to use a conditional forwarder when we were talking about when to use stub zones vs forwarders. I said that's not true. The only time a policy would prevent you from doing that is when trying to use a secondary zone. A policy on DNS would not prevent you from using a stub hence it's incorrect to say that you'd have to use a conditional forwarder of a stub zone due to some policy preventing you from using a stub zone.
Ah, ok.
My original post was more of a joke (hence the laughing face) because I thought the suggestion from MS was a little ridiculous myself.