You are an Enterprise administrator for contoso.com. The corporate network of the company consists of a single Active Directory domain. All the servers in the domain run Windows Server 2008 and all client computers run Windows Vista.

Which of the following options would you choose to design a Windows Server Update Services (WSUS) infrastructure that ensures that the updates are distributed from a central location and all computers must continue to receive updates in the event that a server fails? (Select two. Each correct answer will present a part of the solution.)

A.
Configure a single WSUS server to use multiple downstream servers.

B.
Configure two WSUS servers in a Microsoft SQL Server 2005 failover cluster.

C.
Configure a Microsoft SQL Server 2005 failover cluster.

D.
Configure each WSUS server to use a RAID 1 mirror and a local database.

E.
Configure each WSUS server to use a local database

F.
Configure each WSUS server to use a RAID 5 array and a local database

G.
Configure two WSUS servers in a Network Load Balancing cluster and then Configure WSUS to use the remote SQL Server 2005 database instance.

Explanation:

To design a Windows Server Update Services (WSUS) infrastructure that ensures that the updates are distributed from a central location and all computers must continue to receive updates in the event that a server fails, you need to:

Configure a Microsoft SQL Server 2005 failover cluster. Configure two WSUS servers in a Network Load Balancing cluster. Configure WSUS to use the remote SQL Server 2005 database instance.

Network load balancing (NLB) is a strategy that can keep networks running even if one (or more) servers go offline. It can be used in conjunction with WSUS, but requires special steps at setup time. You should set up WSUS for NLB after configuring your SQL Server2005 database as a failover cluster.

Reference: Appendix C: Configure WSUS for Network Load Balancing http://technet.microsoft.com/en-us/library/cc708533.aspx