Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. It uses concepts like pods, services, and deployments to ensure efficient infrastructure management.

In Kubernetes, services provide networking and load balancing for pods. You can expose services internally within the cluster or externally to the internet. Kubernetes services ensure reliable communication between various parts of your application.

Machine learning plays a vital role in modern applications by enabling them to learn from data and make informed decisions. It powers recommendation systems, fraud detection, natural language processing, image recognition, and much more.

Web applications are software programs accessed via web browsers. They offer cross-platform compatibility, easy updates, and remote access. Web applications can range from simple websites to complex business tools.