A server cluster looks like a?

A.
Single server from the user’s point of view.

B.
Dual server from the user’s point of view.

C.
Tripe server from the user’s point of view.

D.
Quardle server from the user’s point of view.

Explanation:
A “Cluster” is a grouping of machines running certain services providing high
availability and fault tolerance fro them. In other words, they are grouped together as a means of

fail over support. From the users view, a cluster is a single server, but its only a logical one, you
can have an array of 4 server in cluster all with the same IP address (/achieving correct resolution
through ARP), there is no difference for the client.