Describe the architecture of cloud computing?

IaaS (Infrastructure as a Service) provides virtualized computing resources like servers and storage, while PaaS (Platform as a Service) offers a complete development environment, including tools and frameworks, for building and deploying applications.

There are four types of clouds in cloud computing:

• Private clouds
• Public clouds
• Hybrid clouds
• Mutli clouds

Some of the key features that one must keep in mind before going for cloud computing platform are as follows:

• Store your data with utmost security
• Be up to date with recent technology, compatibility and governing policies.

IDaaS or Identity as a Service hold a range of services but some of the mainstream services as follows:

• Single Sign-On (SSO)
• Multi-Factor Authentication (MFA)
• Directory services

Publish-Subscribe model are irregular communication model, that makes it easy for developers to build complex and powerful cloud applications. It also acts as a bridging tool between various components over the cloud, to communicate with each other in an asynchronous manner.