Q1. Explain What is Docker Container with image?
Docker container image is the lightweight independent runtime app run time environment. As said, it contains everything needed to run application.
Container is the collection of an user attached to 1 root FS 1 Network & 1 PID.
Creation of user session, root file system, network, pid etc will be done by kernel using namespaces.
Docker software will directly talk to kernel for this purpose inorder to bypass OS restriction(PC architecture).