These days you need to pass several interviews to get selected in bigger organisations.
Same goes for Data center Technician role where after phone screening sessions you are asked to come for on site for a full day for several interview sessions.
I applied for Data center Technician role and went through couple of phone screening sessions and a full day onsite interview sessions (five 1 hour interviews with different technical people). I managed to note down almost all the questions that were asked and writing them here.
Explain any innovation you have done in the past you are proud of? asked twice
A server is rebooting every 15 minutes, there is nothing in the logs. How will you react to this and resolve the issue? asked twice
There is a fiber cable connected between two devices but it is not working (interface is down, no errors). How will you resolve this? asked twice
Tell me an time where you convinced your manager to make some changes? asked twice
How can you convert a room to a data-center?
What have you learned since your first telephone interview until today?
How did you prepare for this interview?
Tell me about and time where you were working on a task and you had to work on something on emergency basis. asked twice
How do you check the status of raid?
What is the difference between x2 and x3? (2 of company's different products)
Which leadership principle you like most (and why)?
Tell me about a mistake you made in the past and what have you done in order to avoid it in future?
Tell me about a time where your colleague committed a mistake and you helped him
Tell me about a time where you were working on a problem and while resolving it you found another related issue and resolved both of them?
You received a ticket that a link suddenly went down. How will you respond to it?
Whats the difference between 1 gigabyte and 8 gigabits
whats the difference between single mode and multi-mode fiber?
Whats the max distance for Cat6 for 1gigabit/s?
Whats the max distance for multi mode fiber cable for 10gbps?
Tell me about a time from the past where you were working on a task, running against the time
Whats the most difficult task you have worked on? asked twice
How do you upgrade the firmware on switches and routers, give any example?
How do you check the directly connected switches on a switch?
You are in your home directory, how will you change directory to the logs folder?
How do you read a log file?
How do you check the last 10 modified files in a folder?
What was the last hardware part replacement have you done last and when (on a laptop/desktop/server etc.)?
Explain about any project you have worked on, what were the steps taken? asked twice or thrice
Where do you want to see yourself in next two years?
Tell me about a time where you had to take a (business) decision yourself and what was your manager's response on it?
How do you check specs of a server like memory, disk space, cpu information?
You are in-front of a server connected directly to its console, server itself is working fine but your console session is not working or hanged, how will you deal this situation?
How do you kill a process? (sub question: what are the different switches of kill and in which case kill -9 doesn't work?)
You have lost a server's password, how will you get it back?
Tell me about a time where it took you a lot of time and effort to fix an issue (and why)? asked twice or thrice
Tell me about a project where you worked from designing to the completion?
What is the port used by dns?
What is trace-route and what does it tell us?
Tell me about a task where you had to troubleshoot an issue, how did you resolve it and what were the troubleshooting steps? asked twice
What is your understanding about the data-center technician role? asked thrice
I have 10 disks installed in a server, 5 are used for mirroring and 5 for striping. What raid level is it?
Tell me about a time from the past where you were working on a project and had to rollback it for some reason and had to re-do it from the beginning?
Tell me about a project you think you could have done it better?
How you do boot a server without storage or hard disk?
How do you find a port used by a process on a Linux server?
What is the difference between a switch and a router? What layer is used by them?
How do you prevent a network loop? (sub questions: what is BPDU? What is STP?)
Tell me about a time where you had to make some changes on customer's feedback?
Tell me about a time where you failed to meet the project deadline, what was the reason, how did you justify it and what was your manager's response?
Tell me about a time when you worked on something to make it simpler than it was before?
