ABC.comboasts a two-node Network Load Balancing clusterwhich is called web.CK1.com.
The purposeof this cluster is to provide load balancing and high availability of theintranet website only.
With monitoring the cluster, you discover that the users can view the Network Load Balancing cluster in
their Network Neighborhoodand they can use it to connect to various services by using the name web.
CK1.com.
You also discover that there is only one port rule configured for Network Load Balancing cluster. You
have to configure web.CK1.com NLB cluster to acceptHTTP traffic only.
Which two actionsshould you perform to achieve this objective? (Choose two answers. Each answer is part of
the complete solution)

A.
Create a new rule for TCP port 80 by using the Network Load Balancing Cluster console

B.
Run the wlbs disable command on the cluster nodes

C.
Assign a unique port rule for NLB cluster by using the NLB Cluster console

D.
Delete the default port rules through Network Load Balancing Cluster console

Explanation:
http://technet.microsoft.com/en-us/library/cc733056.aspx
Create a new Network Load Balancing Port Rule
Port rules control how a Network Load Balancing (NLB) cluster functions. To maximize control of various types
of TCP/IP traffic, you can set up port rules to control how each port’s cluster-network traffic is handled. The
method by which a port’s network traffic is handledis called its filtering mode. There are three possible filtering
modes: Multiple hosts, Single host, and Disabled.
You can also specify that a filtering mode apply toa numerical range of ports. You do this by defining a port rule
with a set of configuration parameters that define the filtering mode. Each rule consists of the following
configuration parameters:
The virtual IP address that the rule should apply to
The TCP or UDP port range that this rule shouldapply to
The protocols that this rule should apply to, including TCP, UDP, or both
The filtering mode that specifies how the cluster handles traffic, which is described by the port range and
the protocols
In addition, you can select one of three options for client affinity: None, Single, or Network. Single and Network
are used to ensure that all network traffic from a particular client is directed to the same cluster host. To allow
NLB to properly handle IP fragments, you should avoid using Nonewhen you select UDPor Bothfor your
protocol setting. As an extension to the Singleand Networkoptions, you can configure a time-out setting to
preserve client affinity when the configuration of an NLB cluster is changed. This extension also allows clients
to keep affinity to a cluster host even if there are no active, existing connections from the client to the host.