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QUESTION 91
Your network contains an Active Directory domain named contoso.com. The domain contains two member servers named Server1 and Server2.
All servers run Windows Server 2012. Server1 and Server2 have the Failover Clustering feature installed. The servers are configured as nodes in a failover cluster named Cluster1.
You add two additional nodes to Cluster1.
You have a folder named Folder1 on Server1 that contains application data. You plan to provide continuously available access to Folder1.
You need to ensure that all of the nodes in Cluster1 can actively respond to the client requests for Folder1. What should you configure?
A. Affinity – None
B. Affinity – Single
C. The cluster quorum settings
D. The failover settings
E. A file server for general use
F. The Handling priority
G. The host priority
H. Live migration
I. The possible owner J. The preferred owner K. Quick migration
L. The Scale-Out File Server
Correct Answer: L
Section: Storage & High availability
Explanation
Explanation/Reference:
all of the nodes in Cluster1 can actively respond to the client requests for Folder1 => Scale-Out File Server
http://technet.microsoft.com/en-us/library/hh831349.aspx
Scale-Out File Server for application data (Scale-Out File Server)
This clustered file server is introduced in Windows Server 2012 and lets you store server application data, such as Hyper-V virtual machine files, on file shares, and obtain a similar level of reliability, availability, manageability, and high performance that you would expect from a storage area network. All file shares are online on all nodes simultaneously. File shares associated with this type of clustered file server are called scale-out file shares. This is sometimes referred to as active-active.
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For more information on how to deploy Scale–Out File Server :
http://technet.microsoft.com/en-us/library/hh831359.aspx
Deploy Scale-Out File Server
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QUESTION 92
Your network contains an Active Directory domain named contoso.com. The domain contains two member servers named Server1 and Server2.
All servers run Windows Server 2012. Server1 and Server2 have the Failover Clustering feature installed. The servers are configured as nodes in a failover cluster named Cluster1. Cluster1 hosts an application
named App1.
You need to ensure that Server2 handles all of the client requests to the cluster for App1. The solution must ensure that if Server2 fails, Server1 becomes the active node for App1. What should you configure?
A. Affinity – None
B. Affinity – Single
C. The cluster quorum settings
D. The failover settings
E. A file server for general use
F. The Handling priority
G. The host priority
H. Live migration
I. The possible owner J. The preferred owner K. Quick migration
L. The Scale-Out File Server
Correct Answer: J
Section: Storage & High availability
Explanation
Explanation/Reference:
The preferred owner in a 2 server cluster will always be the active node unless it is down.
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http://www.sqlservercentral.com/Forums/Topic1174454-146-1.aspx#bm1174835
Difference between possible owners and preferred owners
Possible owners are defined at the resource level and dictate which nodes in the Windows cluster are able to service this resource
For instance, you have a 3 node cluster with Node A, Node B and Node C. You have a clustered disk resource “MyClusteredDisk”, if you remove Node C from the possible owners of the clustered disk resource “MyClusteredDisk” then this disk will never be failed over to Node C.
Preferred owners are defined at the resource group level and define the preferred node ownership within the Windows cluster
For instance, you have a 3 node cluster with Node A, Node B and Node C. You have a cluster resource group “MyClusteredGroup” which contains various disk, IP, network name and service resources. Nodes A, B and C are all possible owners but Node B is set as the preferred owner and is currently the active node.
The resource group fails over to Node C as Node B stops responding on the Public network due to a failed NIC. In the Resource group properties on the failback tab you have this set to immediate.
You fix the NIC issue on Node B and bring it back up on the network. The resource group currently active on Node C will without warning immediately attempt to failback to Node B . Not a good idea if this is a Production SQL Server instance, so use caution when configuring preferred owners and failback
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http://support.microsoft.com/kb/299631/en-us
Failover behavior on clusters of three or more nodes
This article documents the logic by which groups fail from one node to another when there are 3 or more cluster node members. The movement of a group can be caused by an administrator who manually moves a group or by a node or resource failure. Where the group moves depends on how the move is initiated and whether the Preferred Owner list is set.

QUESTION 93
Your network contains an Active Directory domain named contoso.com. The domain contains two member servers named Server1 and Server2.
All servers run Windows Server 2012. Server1 and Server2 have the Network Load Balancing (NLB)
feature installed.
The servers are configured as nodes in an NLB cluster named Cluster1. Cluster1 hosts a secure web application named WebApp1.
WebApp1 saves user state information locally on each node.
You need to ensure that when users connect to WebApp1, their session state is maintained. What should you configure?
A. Affinity – None
B. Affinity – Single
C. The cluster quorum settings
D. The failover settings
E. A file server for general use
F. The Handling priority
G. The host priority
H. Live migration
I. The possible owner J. The preferred owner K. Quick migration
L. The Scale-Out File Server
Correct Answer: B
Section: Storage & High availability
Explanation
Explanation/Reference:
from Microsoft.Press.Exam.Ref.70-417.Oct.2012
EXAM TIP
Even though Network Load Balancing (NLB) hasnt changed significantly since Windows Server 2008 and isnt mentioned in this chapter, be sure to review the feature and its configurable options.
For example, remember that in port rules for Network Load Balancing clusters, the Affinity setting determines how you want multiple connections from the same client handled by the NLB cluster .
Affinity: Single redirects clients back to the same cluster host.
Affinity: Network redirects clients from the local subnet to the cluster host.
Affinity: None doesnt redirect multiple connections from the same client back to the same cluster host.
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http://technet.microsoft.com/en-us/library/bb687542.aspx
Using NLB
Client Affinity
NLB offers three types of client affinity to minimize response time to clients and provide generic support for preserving session state. Each affinity specifies a different method for distributing client requests. In Application Center, the New Cluster Wizard sets affinity to Single by default. Later, you can use the cluster Properties dialog box to modify the affinity. The following table describes the three types of affinity.
No Affinity
With No affinity, NLB does not associate clients with a particular member. Every client request can be load balanced to any member. This affinity provides the best performance but might disrupt clients with established sessions, because subsequent requests might be load balanced to other members where the session information does not exist.
Single Affinity
In Single affinity, NLB associates clients with particular members by using the client’s IP address. Thus, requests coming from the same client IP address always reach the same member. This affinity provides the best support for clients that use sessions on an intranet. These clients cannot use No affinity because their sessions could be disrupted. Additionally, these clients cannot use Class C affinity because intranet clients typically have IP addresses within a narrow range. It is likely that this range is so narrow that all clients on an intranet have the same Class C address, which means that one member might process all of the requests while other members remain idle.
Class C Affinity
With Class C affinity, NLB associates clients with particular members by using the Class C portion of the client’s IP address. Thus, clients coming from the same Class C address range always access the same member. This affinity provides the best performance for clusters serving the Internet.
Bb687542.note(en-us,TechNet.10).gif Note It is not efficient for Internet clients to use Single affinity because, in Single affinity, NLB load balances each client by the client’s entire IP address, which can span a broad range. By using Class C affinity, NLB associates clients with only the same Class C portion of the IP address with particular members. Therefore, you essentially reduce the range of IP addresses by which NLB load balances clients.

QUESTION 94
Your network contains an Active Directory domain named contoso.com. The domain contains two member servers named Server1 and Server2.
All servers run Windows Server 2012. Server1 and Server2 have the Failover Clustering feature installed. The servers are configured as nodes in a failover cluster named Cluster1. You add two additional nodes to
Cluster1.
You need to ensure that Cluster1 stops running if three nodes fail. What should you configure?
A. Affinity – None
B. Affinity – Single
C. The cluster quorum settings
D. The failover settings
E. A file server for general use
F. The Handling priority
G. The host priority
H. Live migration
I. The possible owner J. The preferred owner K. Quick migration
L. The Scale-Out File Server
Correct Answer: C
Section: Storage & High availability
Explanation
Explanation/Reference:
http://technet.microsoft.com/en-us/library/cc731739.aspx

QUESTION 95
Your network contains an Active Directory domain named contoso.com. The domain contains two member servers named Server1 and Server2.
All servers run Windows Server 2012. Server1 and Server2 have the Failover Clustering feature installed. The servers are configured as nodes in a failover cluster named Cluster1. You add two additional nodes in
Cluster1.
You have a folder named Folder1 on Server1 that hosts application data.
Folder1 is a folder target in a Distributed File System (DFS) namespace. You need to provide highly available access to Folder1.
The solution must support DFS Replication to Folder1. What should you configure?
A. Affinity – None
B. Affinity – Single
C. The cluster quorum settings
D. The failover settings
E. A file server for general use
F. The Handling priority
G. The host priority
H. Live migration
I. The possible owner J. The preferred owner K. Quick migration
L. The Scale-Out File Server
Correct Answer: E
Section: Storage & High availability
Explanation
Explanation/Reference:
from Microsoft.Press.Exam.Ref.70-417.Oct.2012
EXAM TIP
Learn the limitations of SoFS well.
Dont be tricked into selecting SoFS as the file server type for a new clustered file server just because the question states it will host application data.
If the file server is also used with incompatible features (such as BranchCache, DFS, or File Server Resource Manager), or if no CSVs are available, you must choose File Server For General Use as the file server type.
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