CName Terminology Question

[Stanley Liu]

So what is the difference between the following set up:

bar.com.      IN A 192.168.1.1
foo.bar.com. IN A 192.168.1.1

as compared to

bar.com.      IN A        192.168.1.1
foo.bar.com. IN CNAME bar.com.

What if I query about foo.bar.com, is there any difference in the answer?  Under
what circumstances would I use the former and and under what circumstances would I
use the latter?

PS.  I am not the original poster.  I've just picked up this thread and asked this
(I think) relevant question.

--
Stanley Liu
stanley.liu at tmca.com.au