What is Docker?

Question

What is Docker?

Accepted Answer

An open-source platform that packages applications into containers — isolated units sharing the host OS kernel — Docker is a containerization platform, not a virtualization tool. Unlike VMs, containers share the host kernel, making them lighter and faster to start.

Answer

A hypervisor that creates lightweight virtual machines — each running its own kernel on shared hardware

Answer

A configuration management tool that automates server provisioning — similar to Ansible or Puppet

Answer

A cloud hosting service that deploys applications to managed servers — abstracting infrastructure automatically

What is Docker?

Why this is the answer

More Docker Fundamentals flashcards