Your network contains an Active Directory domain named contoso.com. You currently have an intranet web site that is hosted by two Web servers named Web1 and Web2. Web1 and Web2 run Windows Server 2012. Users use the name intranet.contoso.com to request the web site and use DNS round robin. You plan to implement the Network Load Balancing (NLB) feature on Web1 and Web2. You need to recommend changes to the DNS records for the planned implementation.
What should you recommend?
A . Delete one of the host (A) records named Intranet. Modify the remaining host (A) record named Intranet.
B . Delete both host (A) records named Intranet. Create a pointer (PTR) record for each Web server.
C . Create a new host (A) record named Intranet. Remove both host (A) records for Web1 and Web2.
D . Create a service locator (SRV) record. Map the SRV record to Intranet.
Answer: A
Explanation:
You must manually register the NLB cluster name in DNS by using a host (A) or (AAAA) record because DNS does not automatically register static IP addresses.
Reference: How to Configure Network Load Balancing for Configuration Manager Site Systems
https://technet.microsoft.com/en-us/library/bb633031.aspx