The answer is yes. Kubernetes can deploy applications defined in a Docker compose file. In addition, Kubernetes can also manage and update those applications.
There is no simple answer to this question. It depends on your needs and preferences. Both Kubernetes and Docker are container orchestration tools that can help you manage and deploy your applications. If you're just getting started with containers, Docker might be the better option. It's more user-friendly and has a large community that can offer support. Kubernetes, on the other hand, is more complex but offers more features and flexibility. Ultimately, the best tool for you is the one that best meets your needs.
Docker Compose is not a pod. A pod is a group of one or more containers, with a shared storage/network, and a specification for how to run the containers. A Docker Compose file is a YAML file that defines how to build and run a set of containers.
Docker containers can run without Kubernetes, but they are often used together. Kubernetes is a container orchestration tool that can manage and schedule Docker containers. It is often used in production environments where multiple containers need to be running at the same time. Docker containers can also be used without Kubernetes, but they may be more difficult to manage without a container orchestration tool.