How does strace work
Production Engineer Interview Questions
1,940 production engineer interview questions shared by candidates
Split an array and add up the numbers so that the first part of the array equals the sum of the second part of possible.
Networking was solely focused on Layer 2 TCP/IP, OSPF, DHCP, and few other protocols. The opening question was what is your favorite L2-L3 protocol. Then slowly build the questions around this, threw in negative scenarios as well
How does concurrency work? Concurrency vs parallelization?
Tcp, UDP, https, DHCP, DNS, linux command, virtual memory, file system, process, web design, basic system design, load balance.
Networking in depth and Linux questions.
A brief self introduction, followed by asking which protocol am I most comfortable with and I went ahead with BGP. The interviewer started with basic BGP questions, his questions were too generic (this is the catch). Why can't we use OSPF to connect all the systems together, and what is unique about BGP? What is autonomous system? How is the routing information exchanged? What's the difference between iBGP and eBGP peers? How does BGP differentiate between external and internal peers? How is a BGP session established? How to prevent loopback? How to control inbound/outbound traffic? Is there any inspection before sending a route to a different neighbour, by the sender or receiver?
coding was 2 questions, one was simple using many nested if/else. the other was a bit harder, involving reading csv files, processing and so on
- design basic network with couple of router and switch
Walk me through how you'd troubleshoot a server that's not reachable. What happens when you type a URL in a browser? How does BGP work and when would you prefer it over OSPF? Describe a time you troubleshooted a complex network issue. Explain how TCP handshake works. What's the difference between TCP and UDP? How do you find a memory leak in a Python script? What are common causes of high CPU usage on a Linux server? Explain optical networking and the challenges at Layer 0/1. How does DNS resolution work behind the scenes?
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