Yes, beginners can pass the LFCS exam, but only if they put in real hands-on time first. This isn't a memorization test, so someone who has never touched a terminal will struggle badly on day one. The key is building comfort with basic commands, file permissions, and navigation before moving into networking or storage tasks.
Most people who start from zero and pass usually spend two to four months practicing daily on a VM. Speed matters too, since you're solving live problems under a clock, not picking answers from a list. Skipping lab practice is the number one reason first attempts fail.
If you're also weighing whether the effort is worth it, this guide looks at career paths, expected salary ranges, and where demand for the Linux Foundation Certified System Administrator is strongest right now. Worth a read before you commit: https://www.certboosters.com/linux-foundation/path/lfcs