Understand hypervisors and VM boot
Distinguish type 1/type 2 hypervisors and follow a VM boot flow.
- Describe how a VM boots from image to running services.
Type 1 hypervisors run directly on hardware; type 2 hypervisors run on top of a host OS. To start a VM, the hypervisor allocates virtual hardware, attaches a disk image, and begins booting the guest. The guest kernel initializes devices, mounts filesystems, and starts services.
steps = ["allocate vCPU+RAM", "attach disk image", "boot guest kernel", "start services"]
for step in steps:
print(step)allocate vCPU+RAM attach disk image boot guest kernel start services
Cloud platforms usually use type 1 virtualization for performance and control. Locally, developers often use type 2 tools to test quickly on laptops. Both expose the same core idea: virtual hardware presented to a guest OS.
Key takeaways
Describe how a VM boots from image to running services.
VMs are powerful when automation and guardrails stay strong.
Observe before scaling; recover before incidents become outages.
Lesson quiz
5 questions · pass with 4 correct · up to 50 XP
Passing this quiz completes the lesson and keeps your streak going. Questions you miss come back in review sessions later.
Practice: write Python
Write Python in the editor and run it against sample inputs. Python runs locally in your browser using a WebAssembly runtime.
Print boot stages
Read one VM name and print four lines in order: allocating <name>, attaching disk, booting kernel, starting services.
- api vm boot
Python runs in a sandboxed browser worker with a 60 second time limit. Its runtime loads from the Pyodide CDN; your code stays in this browser.
Questions about this lesson
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