This activity requires you to determine whether a resource record should be included on an internally accessible DNS server, an externally accessible DNS server, or on both DNS servers.
Your organization has the network infrastructure for its Windows 2000 deployment shown in Figure 9.4.
Figure 9.4 Your organization's network
Your organization's Active Directory forest root is deployed as a child domain of your current DNS namespace. The DNS name for your organization is organization.tld, and your Active Directory forest root is deployed as ad.organization.tld.
Your organization uses a mix of Microsoft Outlook 2000 clients configured to use the Exchange Server service and Outlook Express clients. The mail clients use Internet Message Access Protocol version 4.0 (IMAP4) and Simple Mail Transport Protocol (SMTP) to access e-mail services. When working at client sites, Outlook Express clients require e-mail access on both the internal network and the external network.
Outside clients have reported that they can't send mail to your organization. Messages are returned stating that a Mail Exchanger doesn't exist for your organization's domain name.
Answer the following questions about this situation. The answers to these questions can be found in the appendix.
|Host||IP Address or Contents|
|DNS Resource Record||IP Address or Contents|
|MX record for organization.tld|