Linux Interview Questions and Answers with Practical - Real Time

In this video, I am going to explain some real-time interview questions and answers for 2-4 years of experience. Linux Interview Questions and Answers Q- How will you change the default user id value in Linux? Q- root# rm -rf /tmp/test gives error operation not permitted. Reason? Q- /etc/hosts (Which RPM is responsible for creating this file). Q- What is the difference between RPM and YUM? Q- What is the difference between Hard and Soft Link? Q- What is a sticky bit? Q- How will you check open ports on Linux Server? Q- How will you check open ports on remote servers (without login) Q- Your site is throwing 500 error, how will you start troubleshooting? Q- How will you start troubleshooting if your site is down? Q- How will you create space on disk if it is showing 100% used? Q- What is a package of sar command and what does it do?