Complex sentence: A large corporation that has many locations may have a backbone network that ties all of the locations together, for example, if a server cluster needs to be accessed by different departments of a company that are located at different geographical locations.
Split into simpler sentences: A large corporation that has many locations may have a backbone network that ties all of the locations together. For example, if a server cluster needs to be accessed by different departments of a company that are located at different geographical locations.