Describe the difference between public, private, and hybrid cloud models. When would you use each?
Public, Private, And Hybrid Cloud Models:
1. Public Cloud:
*What it is:
Services provided over the internet and shared among multiple users or organizations. The infrastructure is owned and managed by a third-party provider (like AWS, Microsoft Azure, or Google Cloud).
When to use:
If you need a cost-effective solution without managing hardware.
For dynamic workloads like hosting websites or applications with fluctuating demand.
For startups or small businesses that prioritize scalability.
Example: Hosting a website on AWS.
2. Private Cloud:
\What it is:*
A cloud environment dedicated to a single organization. It can be hosted on-premises or by a third-party provider.
When to use:
If you need complete control and customization over resources.
For industries like finance or healthcare that require strict data security and compliance.
For organizations with predictable and stable workloads.
Example: Banks running sensitive financial applications in their own private cloud.
3. Hybrid Cloud:
\What it is:*
A mix of public and private clouds, allowing data and applications to move between them.
When to use:
If you need flexibility: keep sensitive data in a private cloud while using a public cloud for less critical operations.
For businesses with varying demands—public for peak loads and private for normal operations.
For gradual migration from private to public cloud.
Example: An e-commerce company storing customer data in a private cloud while using a public cloud for traffic spikes during sales.
Key Takeaway:
Public Cloud: Best for cost-efficiency and scalability.
Private Cloud: Best for control and security.
Hybrid Cloud: Best for flexibility and balancing cost with sensitive data needs.