DevOps

What are the differences in causes of kernel panic when related to Docker or other system processes?

What Linux kernel parameters did you configure when tuning the TCP stack?

Can you list the main commands used by a Linux administrator to manage the system?

Can you explain how the EXPOSE command is used in a Dockerfile and what role it plays in container configuration?

What frameworks do you know?

How does the compilation stage of source files into an executable binary file occur in Linux?

What do you know about the elastic stack ELK and EFK?

Can you explain the concept of multi-stage builds in Docker and why they are useful?

What is the difference between netstat and ss commands in Linux?

What are the differences between a master node and a worker node in a cluster architecture?

Have you worked with NoSQL databases?

Junior — Middle

OZON

What options are available for mounting file systems?

How would you organize the file structure for Terraform in your project?

What ingress controllers have you worked with?

How would you set up monitoring for 200 servers? What approaches and tools would you use, and how would you design the monitoring system?

How can resource usage of CPU in a system be evaluated?

Explain the concept of proxy and in which scenarios it is used

Tell about your experience working with the Rocky Linux operating system.

Can you explain what Nagios is and what it is used for in a monitoring system?

What methods and approaches are used to resolve connection issues and data augmentation in systems?