Q. What do you understand about OSI model?
Linux Engineer Interview Questions
671 linux engineer interview questions shared by candidates
Round 1 HR: (1 person ) 30 min Q: Tell me about yourself Q: Linux commands questions like grep, awk, sed Q: Have you worked on on-prem VM's ? Q: What databases have you worked on? Q: Most challenging project and how you helped? Q: Do you know Jenkins and scripting in Groovy? Q: What language do you usually script in: python, bash, or both? Q: How would you check if the VM is down? Q: How to check if the disk space is running out? What steps will you take to rectify it? Q: Difference between inode and notify Round 2 : Take home Coding assignment: Q: Given a string like 'aaabccdee', return count of characters to remove to make it an string with all chars having even frequency Q: Given an array with days in it, write a function that takes a day and n as an input and returns the day that's n days from day. eg: ('wed', 3)=> sat Q: Given a file structure for music, images, videos arrange the extensions of file in their respective dir. eg : .jpg in images folder, .mp3 in music, .avi in videos folder. Round 3: Group Interview: (2 people): 90min Q: Command to see services running on VM Q: How would you manage certificates on VM? Q: What are docker layers? Q: What is docker multistage? Q: Difference between NodePort and ClusterIP? Q: How to check if the Apache service is running? Q: How did you migrate the Certificate? ( eg : Godaddy to ACM) Q: Where are the certificates stored? Q: Do you know certificate architecture in general? Explain it. Q: Explain how the client authenticates with a server? Q: Terraform vs Ansible ? Why did you choose Terraform? Q: Live coding: Fibonacci series for first 30 numbers. Any language.
I was asked to describe Linux network stack and ways to optimize it for different loads
Basics to intermediate level of experience
How do you patch the multiple servers?
Most unexpected question: What is going to happen if/when you tell your current employer your leaving?
Linux questions, specifically about system startup and systemd. I was asked the standard questions about priority inversion, deadlock, etc. There was one coding exercise - write a C function that mirrors the bits in a byte.
How would you approach debugging a problem where a system or software component was previously functioning correctly but is now experiencing issues?
Linux, FileSystems, Clusters, Config. Management, Installation, Patching.
How do you handle conflict and difficult people
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