Your network contains an Active Directory forest. The forest contains three domain trees. Each domain tree contains multiple domains.
You have an Active Directory-integrated DNS zone.
You install a Web server named Web1. All of the users in the company will use Web1. You need to ensure that the users can access Web1 by using the URL http://web1. You want to achieve this goal by using the minimum amount of administrative effort.
What should you do?
A.
Configure a GlobalNames zone and add a Host (A) resource record for Web1.
B.
Create an Alias (CNAME) resource record for Web1 in the forest root domain zone.
C.
Create a reverse lookup zone and add an Alias (CNAME) resource record for Web1.
D.
Create a Host Information (HINFO) resource record for Web1 in the forest root domain zone.
Explanation:
B should be also the correct answer :
Create an Alias (CNAME) resource record for Web1 in the forest root domain zone.
because the root zone is already AD-integrated.
What do you think? please reply examcollection website.
Sorry, but A is NOT the correct answer. It is a trick question because A seems to be 99% right. But if you review Technet for information on GlobalNames zone you will quickly find out that they are NOT adding Host (A) resource records there. They are instead using CNAME entries. Therefore I suggest sticking to B that will also serve for such a multipe-tree-multiple-domain-solution.
http://technet.microsoft.com/en-us/library/cc731744(WS.10).aspx
Having reviewed certain sources for hints that this could actually work with Host (A) I have finally found a picture that shows that you can actually create such an entry there: http://www.petri.co.il/images/globalzones_8.gif This is just for your information since I still believe it is a trick question because of the “minimum amount of adminstrative effort”. You MIGHT be able to handle this via a GlobalNames Zone (though you would be mis-using it because of the Host(A)-entry), but the most effective way is still to just put a CNAME record into the forest root domain zone and link it to the entry that the server already has (due to AD-integration). This is a simple step instead of doing the initial implementation of a whole GlobalName Zone-solution.
Thanks for your input. I keep wanting to pick Cname on the practice test. I have a 2008 practice server running. Will test this a little further
I found this on examcollection.com, and I think he has a point:
The important point is that “the domain contains three domain trees”.
Only one of those domain trees will contain the forest root domain. The remaining two trees will not contain the forest root, and will therefore not query the forest root for the alias.
On the other hand, a GlobalNames zone will be available to all trees.
i think it’s even simplier than you comments.
GNZ permits you to query a name without having to add the domain name part.
if you need to query a name for a computer using only web1 without any further configuration, computers in domain.A will query web1.domain.A, those in domain.B will query web1.domain.B and those in domain.C will query…Well, you got the idea..
a GNZ is deployed to the entire forest AND if you create an alias, in a fwd lookup zone, it will automatically have a fqdn.
HINFO being weird as an answer, we can logically deduce that the correct answer is A, even if the thinker who wrote this got it wrong with the alias / a RRType thing…
Alias (CNAME) resource records use FQDNs (Fully Qualified Domain Names). An example of a FQDN is: web1.contoso.com
The questions states that one should be able to access WEB1 by using the URL http://web1 which is not a FQDN. Answer is A.