Enterprise solutions inherently require the capability to scale among several different nodes. That is, distributing the workload so that several machines can share the work for a given request is the key to scalability. Technologies such as MongoDB, Apache Hadoop, and Kafka are part of a large-scale solution that provides the framework to implement a distributed environment.
A corporate website that sees a lot of traffic will be also implemented using a distributed architecture using a load balancer. Load balancers such as mod_jk, mod_http_ajp, mod_cluster, and F5 servers can be used to balance among different clusters. There are several different types of hardware and software based load balancers that a corporation can use.
Websulting Business Solutions has several decades of experience working with and designing distributed architectures to support enterprise solutions.