Production Engineer Interview Questions

1,940 production engineer interview questions shared by candidates

### Q1 Tell me about a technical book you read recently, why you liked it, and why I should read it. ### Q2 A service daemon in production has stopped responding to network requests. You receive an alert about the health of the service, and log in to the affected node to troubleshoot. How would you gather more information about the process and what it is doing? What are common reasons a process might appear to be locked up, and how would you rule out each possibility? ### Q3 A user on an ubuntu machine runs `curl http://gitlab.com` Please describe in as much detail as you can the lifecycle of the command and what happens in the kernel, over the network, and on GitLab servers before the command completes. ### Q4 One of the current challenges we are facing lies in storage capacity. Describe in as much detail as you can how you would face this challenge, where do you think the main bottlenecks could be and finally what actions would you take to understand the problem and to finally deliver an infrastructure that would support our growth. ### Q5 Write a program, topN, that given an arbitrarily large file and a number, N, containing individual numbers on each line (e.g. 200Gb file), will output the largest N numbers, highest first. Tell me about the run time/space complexity of it, and whether you think there's room for improvement in your approach.
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Production Engineer

Interviewed at GitLab

3.6
Nov 25, 2017

### Q1 Tell me about a technical book you read recently, why you liked it, and why I should read it. ### Q2 A service daemon in production has stopped responding to network requests. You receive an alert about the health of the service, and log in to the affected node to troubleshoot. How would you gather more information about the process and what it is doing? What are common reasons a process might appear to be locked up, and how would you rule out each possibility? ### Q3 A user on an ubuntu machine runs `curl http://gitlab.com` Please describe in as much detail as you can the lifecycle of the command and what happens in the kernel, over the network, and on GitLab servers before the command completes. ### Q4 One of the current challenges we are facing lies in storage capacity. Describe in as much detail as you can how you would face this challenge, where do you think the main bottlenecks could be and finally what actions would you take to understand the problem and to finally deliver an infrastructure that would support our growth. ### Q5 Write a program, topN, that given an arbitrarily large file and a number, N, containing individual numbers on each line (e.g. 200Gb file), will output the largest N numbers, highest first. Tell me about the run time/space complexity of it, and whether you think there's room for improvement in your approach.

The discussion mainly centered around how my years of experience did not align with the years of experience they were seeking for the position. They were looking for an entry level position, however the position title and description did reflect that.
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Production Engineer

Interviewed at LG Electronics

3.3
Oct 9, 2019

The discussion mainly centered around how my years of experience did not align with the years of experience they were seeking for the position. They were looking for an entry level position, however the position title and description did reflect that.

Questions based on Unix and Production support. They wanted a candidate with detailed information about everything (tools specifically which they use and not what you have used for the same purpose, same for tech, etc) even though nothing such was mentioned in the JD.
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Production Support Engineer

Interviewed at Accenture

3.7
Jun 2, 2024

Questions based on Unix and Production support. They wanted a candidate with detailed information about everything (tools specifically which they use and not what you have used for the same purpose, same for tech, etc) even though nothing such was mentioned in the JD.

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