Your company named Contoso, Ltd. has a two-node Network Load Balancing cluster.
The cluster is intended to provide high availability and load balancing for only the intranet Web site.
The name of the cluster is web.contoso.com.

You discover that Contoso users can see the Network Load Balancing cluster in the network neighborhood and can connect to various services by using the web.contoso.com name.

The web.contoso.com Network Load Balancing cluster is configured with only one port rule.

You need to configure the web.contoso.com Network Load Balancing cluster to accept only HTTP traffic.

Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A.
Log on to one of the cluster nodes and run the wlbs disable all command.

B.
Open the Network Load Balancing Clusters console and delete the default port rules.

C.
Open the Network Load Balancing Clusters console and create a new Allow rule for TCP port 80.

D.
Open the Network Load Balancing Clusters console and change the default port rule to a disabled port range rule.

Explanation:

The following procedure describes how to configure NLB on the Web tier for a typical deployment.
To configure NLB on the Web tier
Open properties for the front-end adapter (for communicating with clients on the Internet).
In Network Load Balancing Properties dialog box, on the Cluster Parameters tab, type the Primary IP address (the virtual IP address shared across all cluster members), Subnet Mask, and Full Internet name.
In Network Load Balancing Properties dialog box, on the Host Parameters tab, type the Priority (Unique host ID), Dedicated IP address, and Subnet Mask.
In Network Load Balancing Properties dialog box, on the Port Rules tab, remove the default port rule covering ports 0 to 65535 by selecting the port rule, then clicking Remove.
Create a port rule for HTTP using the information in the following table, and then click Add.
Field
Enter
Port range
80 to 80
Protocols
Both
Affinity
None
Source: http://technet.microsoft.com/en-us/library/ee784931(CS.20).aspx