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.
The company has created a web site which requires a very high availability and a high scalability for the success of the company. You therefore publish the Web site on two Web servers.
You have to now deploy an availability solution for your Web servers and ensure that the Web site is accessible even if a single server fails and the addition of more Web servers can be done for the website without interrupting client connections
Which of the following options would you choose to create to accomplish the desired task?
A.
A Network Load Balancing cluster
B.
A failover cluster
C.
application pools on each Web server
D.
A Web farm on each Web server.
E.
None of the above
Explanation:
To deploy an availability solution for your Web servers and ensure that the Web site is accessible even if a single server fails and the addition of more Web servers can be done for the website without interrupting client connections, you need to create a Network Load Balancing cluster.
Network load balancing (NLB), Windows Server 2008’s other high-availability alternative, enables an organization to scale server and application performance by distributing TCP/IP requests to multiple servers, also known as hosts, within a server farm. This scenario optimizes resource utilization, decreases computing time and ensures server availability. Typically, service providers should consider network load balancing if their customer situation includes, but is not limited to, Web server farms, Terminal Services farms, media servers or Exchange Outlook Web Access servers.
When designing and implementing NLB server farms, it’s common to start off with two servers for scalability and high availability and then add additional nodes to the farm as Clearly, failover clustering and network load balancing with Windows Server 2008 provide service providers with options when designing and implementing high availability for their customers’ mission-critical servers and applications.
Reference: Failover clustering, network load balancing drive high availability http://searchsystemschannel.techtarget.com/tip/0,289483,sid99_gci1317355,00.html