I'm trying to become much more advanced with Linux, and I'm considering using the syllabus for an exam I want to take as a guide for what I should learn. Since I'm still fairly new to virtual machines, I'm wondering whether setting up a Linux VM would be a smart way to practice without accidentally damaging my main operating system. Would a VM be suitable for this kind of studying, or is there another beginner-friendly option I should consider?
3 Answers
VMs are convenient, but they do share your computer’s RAM, CPU, and storage with the host system. If you need graphics performance or want the absolute best speed, dual-booting onto a separate SSD can be better. That said, dual booting is more complicated and easier to misconfigure, so it may not be the best first step while you’re still learning.
A virtual machine is a good choice if your main concern is experimenting safely. You can install Linux, practice administration tasks, and roll back to a snapshot if something goes wrong. You’ll lose some performance compared with running directly on hardware, but that usually won’t matter for command-line work and the topics covered by a typical Linux exam.
I’d start with a VM. It gives you an isolated Linux installation where you can break things, reinstall, and take snapshots without putting your everyday system at risk. Once you’re comfortable and want to learn about hardware-specific behavior or improve performance, you can consider a second drive or a dedicated machine later.

I’m not ready to set up a dual-boot system yet, so it sounds like starting with a VM would be the safer option for now.