Cloud Deployment Models

Public, private, hybrid — where should your application actually live?

Public Cloud

Resources (servers, storage) are owned by a third-party provider (AWS, Azure, GCP) and shared among multiple customers. It's cost-effective and scalable, ideal for most startups and general applications.

Private Cloud

Infrastructure is dedicated to a single organization, offering more control and security — often used by banks, government, or companies with strict compliance needs.

Hybrid Cloud

Combines public and private cloud, letting sensitive data stay on a private cloud while less-sensitive workloads run on the public cloud, balancing cost, control, and flexibility.

🌍 Real-World Use

This very ShikshaCS website, if deployed on Vercel, is running on public cloud infrastructure — you're using cloud computing right now without even realizing it.

💡 Pro Tip

When asked to choose a deployment model in an interview scenario question, always mention the trade-off explicitly: 'Public cloud for cost/scale, Private for compliance/control, Hybrid when you need both' — this shows practical judgment, not just definitions.

🧪 Quick Self-Test

Check what you just learned — no pressure, just practice.

1. Which cloud model is shared among multiple customers?

2. Why might a company choose a Hybrid Cloud?

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