Tutorials Cloud Computing Tutorial
Virtual Machines — Complete Guide
Virtual Machines — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of Cloud Computing Tutorial on Toolliyo Academy.
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Cloud Computing Tutorial · Lesson 21 of 100
Virtual Machines
Foundations ✓ → Platform → Ops → Projects
Platform · 2 — Containers & data · ~6 min · Cloud — Virtualization & Containers
What is this?
Virtual machines are rented computers — CPU, RAM, disk, NIC — you patch and run like servers.
Why should you care?
CloudVerse still uses VMs for lift-and-shift and specialized software before containers.
See it live — copy this example
Use AWS/Azure/GCP free tier or local Docker/Kind. Sketches and YAML are meant to be typed and adapted.
# create idea (CLI-ish)
# az vm create -g cv -n api-1 --image UbuntuLTS --size Standard_B2s --subnet app
# ssh via bastion/SSM — not public 22What happened?
- Rightsize early.
- Use managed disks.
- Prefer images baked with config.
- Stop idle labs.
Practice next
- Create a small VM.
- No public SSH.
- Attach managed disk.
- Stop VM when idle.
- Capture a golden image.
Remember
Rightsize. Managed disks. Bastion/SSM access.
CloudVerse first VM
Legacy app on B2s private subnet.
Outcome: Reachable via bastion only.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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