For an entry-level interview, it is generally **easy to get through one round** if you prepare the **basic topics** well. Focus on **Linux fundamentals**, such as common commands (`ls`, `cd`, `grep`, `chmod`, `ps`, `top`), file permissions, processes, and basic networking. You should also know **server hardware parts identification**, including CPU, RAM, hard disk/SSD, power supply, NIC, RAID, and cooling components. Be ready for **resume-based questions**, where interviewers ask you to explain projects, tools, and technologies you have listed. Clear explanations and basics are usually enough.