Deployment models describe how cloud environments are structured, who manages them, and how they are accessed.
  Public cloud
 
 A 
public cloud is owned and operated by a cloud services provider. Resources like servers, storage, and networking are shared among multiple customers and accessed via the internet.  
Advantages: A public cloud is cost-effective and highly scalable. There’s no need to maintain physical hardware and you can often deploy solutions on a public cloud quickly.  
Disadvantages: Customers have limited control over the cloud environment, which can potentially introduce compliance concerns. Customers are reliant on the vendor’s security measures. 
 Best for: A public cloud is a great choice for startups, small businesses, and organizations that require agility and want to avoid upfront infrastructure investments.  
Private cloud  A 
private cloud is dedicated to a single organization, either hosted on-premises or managed by a provider. It delivers exclusive access to a single organization and greater control over security and customization. 
 Advantages: A private cloud provides enhanced privacy and allows you to better align security protocols with compliance needs. It supports greater customization for specific workloads. 
 Disadvantages: A private cloud can have higher costs. It requires more in-house expertise and tends to be less flexible than a public cloud. 
 Best for: A private cloud is great for large enterprises, government agencies, financial institutions, and healthcare organizations with strict data regulations. 
 Hybrid cloud
 
 A 
hybrid cloud combines elements of both public and private clouds. Businesses can store sensitive data in a private environment while taking advantage of the public cloud’s scalability for less critical workloads. 
 Advantages: A hybrid cloud provides a balance between cost and security, offers flexibility, and supports workload portability. 
 Disadvantages: A hybrid cloud can be more complex to manage because it requires strong integration between clouds. There’s potential for increased costs when using a hybrid cloud approach, if costs aren’t carefully managed. 
 Best for: Organizations with dynamic workloads, seasonal demand, or mixed compliance needs can benefit from a hybrid cloud approach. 
 Multicloud
 
 A 
multicloud strategy uses services from more than one cloud provider, often alongside private infrastructure. This helps organizations avoid vendor lock-in and use the best features of each platform. 
 Advantages: A multicloud approach provides greater redundancy, optimized performance, and freedom to choose the best possible services. 
 Disadvantages: Possible disadvantages include increased complexity, potential integration challenges, and higher security management needs. 
 Best for: Large enterprises, global businesses, and organizations that want to diversify risk across providers are excellent candidates for a multicloud strategy.