Since you're working in a data center, here are some system and network-related questions for preparation: 🔹 System-Related Questions (Operating System & Hardware) What happens during the booting process? Explain the difference between a process and a thread. What is paging vs. segmentation in memory management? How does virtual memory work, and what happens if it’s full? What is a zombie process, and how do you handle it? What is RAID, and what are its different levels? How do you check CPU and memory utilization in Linux? What is thrashing, and how can you avoid it? What is swap memory, and how is it different from RAM? How does the kernel manage processes in an OS? 🔹 Network-Related Questions (TCP/IP, Security, Troubleshooting) Explain the TCP/IP model and its layers. What is the difference between TCP and UDP? What happens when you type www.amazon.com in a browser? What is a subnet mask, and how does it work? Explain the DORA process in DHCP. What is NAT (Network Address Translation), and why is it needed? What is the difference between a switch and a router? How do ping and traceroute work? Explain SSL/TLS handshake and how HTTPS secures data. What are firewalls, proxies, and VPNs, and how do they differ?