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MSCA 70-291 Windows Server 2003 Exam Prep

Category - 70-291

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Chad is the network administrator for Globe.com, which has an Active Directory-integrated DNS zone replicated to all domain controllers. DNS service is installed only on the domain controllers. The network management department requires all hosts in the payroll division to be registered in the DNS namespace, Payroll.Globe.com, which currently does not exist.

Chad needs to add support for the Payroll.Globe.com namespace to all the existing DNS servers. What should Chad do to find a solution that will not require reconfiguration if DNS servers are added to the domain in the future?
  1. Create a delegation named payroll in the Globe.com zone.
  2. Create a sub-domain named payroll in the Globe.com zone.
  3. Create a stub zone for Payroll.Globe.com.
  4. Create a primary zone for Payroll.Globe.com that is not Active Directory-integrated.
Explanation
Answer - B - Chad should create a sub-domain named payroll in the Globe.com zone.

Key Takeaway: Sub-domains are used to assign a unique name to a particular department, function, or service related to the organization. A sub-domain entry is tied to the corresponding domain name lookup. A request for the sub-domain will be routed to a DNS server containing the DNS information for the parent domain.

Once the DNS record for the sub-domain is resolved to a particular IP address, the request is sent to the web server listening on that IP address. The web server can now delegate the request to the particular Web site based on the sub-domain name in the host header of the request object.
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