Final answer:
A cloud infrastructure dedicated to a single organization is called a private cloud, providing control over data, security, and compliance.
Step-by-step explanation:
The type of cloud infrastructure that is available solely for a single organization is known as a private cloud. Unlike a public cloud, which provides services to multiple clients, a private cloud is dedicated to the needs and goals of a single entity, ensuring greater control over data, security, and compliance. The community cloud is for a group of organizations with similar requirements, while a hybrid cloud combines both private and public cloud elements to take advantage of both infrastructures.