A new company registers the domain name of contoso.com. The company has a web presence on the Internet. All Internet resources have names that use a DNS
suffix of contoso.com.
A third-party hosts the Internet resources and is responsible for managing the contoso.com DNS zone on the Internet. The zone contains several hundred records.
The company plans to deploy an Active Directory forest. You need to recommend an Active Directory forest infrastructure to meet the following requirements:
Ensure that users on the internal network can resolve the names of the company’s Internet resources.
Minimize the amount of administrative effort associated with the addition of new Internet servers.
What should you recommend?
A.
A forest that contains a single domain named contoso.local
B.
A forest that contains a root domain named contoso.com and another domain named contoso.local
C.
A forest that contains a root domain named contoso.com and another domain named ad.contoso.com
D.
A forest that contains a single domain named contoso.com
Explanation:
Rules for Selecting a Prefix for a Registered DNS Name Select a prefix that is not likely to become outdated. Avoid names such as a business line or operating
system that might change in the future. Generic names such as corp or ds are recommended.
Incorrect:
not A, not B: Using single label names or unregistered suffixes, such as .local, is not recommended.
I thought answer C was a mistake (the explanation is not really useful).
I believed answer was A, until I found this post:
https://social.technet.microsoft.com/wiki/contents/articles/34981.active-directory-best-practices-for-internal-domain-and-network-names.aspx
“This is a frequently used technique to use the same TLD (top level domain) and separate the zones by subdomain. E.g. “intranet”, “extranet”, “DMZ” for ‘internal’ zones and just plain . for public DNS. For example:
intranet.example.org or corp.example.org (if your AD is named ‘CORP’)
extranet.example.org for applications or partner facing websites
DMZ.example.org for applications that need DMZ for data protection or publication,
and master suffix .example.org for public websites (managed by your Internet Provider”
0
0