DevOps · Flashcard
What is Docker?
- AAn open-source platform that packages applications into containers — isolated units sharing the host OS kernel
- BA hypervisor that creates lightweight virtual machines — each running its own kernel on shared hardware
- CA configuration management tool that automates server provisioning — similar to Ansible or Puppet
- DA cloud hosting service that deploys applications to managed servers — abstracting infrastructure automatically
Why this is the answer
Docker is a containerization platform, not a virtualization tool. Unlike VMs, containers share the host kernel, making them lighter and faster to start.
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