Virtualization
What a hypervisor actually does, running real virtual machines with KVM/QEMU, and the clear line between a VM and a container before you meet Docker.
What you'll actually learn
"Virtual machine" and "container" get used almost interchangeably by people who've never had to explain the difference under pressure. This track starts with what a hypervisor actually does — carving one physical machine into several that each believe they have their own hardware — using KVM/QEMU to run real VMs, before you ever meet Docker and the very different trick containers play instead.
What you'll be able to do
You'll be able to actually explain, with the mechanism and not just the buzzwords, why a VM boots its own kernel and a container doesn't, and pick the right one for a given workload instead of reaching for whichever is trendier. That distinction is the exact thing that separates "I've used both" from actually understanding what's running underneath either one.
Syllabus
Leads to
Frequently asked
Roughly 1 hour across 8 hands-on quests — you can go at your own pace and pick up exactly where you left off.
You should be comfortable with Linux Administration first — the skill tree unlocks Virtualization once you've cleared those.
Yes — Virtualization is fully available on the free tier, starting with a free first quest and no payment method required to sign up. Plus and Elite remove pacing limits but don't gate any of the Virtualization curriculum behind a paywall.
Create a free account and begin your first quest — no card required.
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