Linux Engineer Interview Questions and Answers

Linux Engineer interview question about Linux distros, differences with Windows, file permissions, and Linux kernel.

• Linux distros: Ubuntu, Fedora, CentOS, Debian, Arch Linux, etc.

• Major differences between Linux and Windows: open-source vs proprietary, file system structure, command-line interface, etc.

• Basic components of Linux: kernel, shell, file system, libraries, utilities, etc.

• File permissions in Linux: read, write, execute permissions for owner, group, and others.

• Linux k...read more

Shell is a command-line interpreter in Linux. Root account is the superuser account with administrative privileges. Swap space is a disk space used as virtual memory.

• Shell is a program that interprets user commands and executes them.

• Root account is the superuser account with unrestricted access to all files and commands.

• Swap space is a disk space used as virtual memory when the RAM is full or to hibernate the system.

• Shell examples: Bash, Zsh, Ksh

• Root account example: username...read more

A Linux server is a computer system running a Linux operating system that provides network services to other devices.

• Linux servers are used to host websites, applications, databases, and other services.

• They can be configured to perform specific tasks such as file storage, email hosting, or virtualization.

• Common Linux server distributions include Ubuntu Server, CentOS, and Red Hat Enterprise Linux.

• Servers work by receiving requests from clients, processing them, and sending ba...read more

To install and troubleshoot Linux OS, you need to follow specific steps and use troubleshooting techniques.

• To install Linux OS, create a bootable USB or CD with the Linux distribution of your choice, boot from it, and follow the installation prompts.

• During installation, partition the hard drive, select software packages, set up user accounts, and configure network settings.

• To troubleshoot Linux OS, check system logs for errors, use command line tools like dmesg, lsusb, lspci,...read more

Linux engineering involves designing, implementing, and maintaining Linux-based systems and infrastructure.

• Designing and implementing Linux-based systems

• Configuring and maintaining Linux servers

• Troubleshooting and resolving issues with Linux systems

• Automating tasks using scripting languages like Bash or Python

• Collaborating with other IT teams to ensure smooth operation of Linux infrastructure