Explanation/Reference:
Explanation:
To create DNS Host (A) Records for all internal pool servers
Click Start, click All Programs, click Administrative Tools, and then click DNS.

In DNS Manager, click the DNS Server that manages your records to expand it.

Click Forward Lookup Zones to expand it.

Right-click the DNS domain that you need to add records to, and then click New Host (A or AAAA).

In the Name box, type the name of the host record (the domain name will be automatically appended).

In the IP Address box, type the IP address of the individual Front End Server and then select Create

associated pointer (PTR) record or Allow any authenticated user to update DNS records with the same owner name, if applicable.
Continue creating records for all member Front End Servers that will participate in DNS Load

Balancing. For example, if you had a pool named pool1.contoso.com and three Front End Servers, you would create the following DNS entries:

Reference:
http://technet.microsoft.com/en-us/library/cc772506.aspx
http://technet.microsoft.com/en-us/library/gg398251.aspx