Cloud hosting and shared hosting are two fundamentally different approaches to web hosting. Shared hosting involves hosting multiple websites on a single server, with shared resources among them. This can lead to limitations in terms of performance and scalability, as the resources are shared among all the websites. On the other hand, cloud hosting utilizes a network of interconnected servers to distribute resources dynamically. This allows for scalability and flexibility, as resources can be allocated or scaled up/down based on demand. Cloud hosting also offers better reliability and uptime since websites are not dependent on a single server. Overall, cloud hosting provides more robust and scalable hosting solutions compared to shared hosting.