Round 1 (Online Assessment) : Questions were mainly from OS, CN, Linux. There were also a few Aptitude questions in the mix. The platform used was Codesignal. The test consisted of 45 MCQs in 30 minutes so speed was very crucial along with accuracy but there was no negative marking. Round 2 (Technical Round 1) : There were no DSA questions asked in this round as it was for an SRE role. There were questions about file systems like which file system is used in Windows, Linux, etc. A few questions were also asked about OS and CN like the OSI model, execution of some linux commands and explaining its output.Getting ip of device, questions related to gateway,ARP etc ~30 mins Round 3 (Technical Round 2) : Based on projects on resume asked some questions.Then same concepts as listed above were tested in this round as well. Fundamental questions on core concepts like DHCP and troubleshooting. Questions were asked about my system like what configuration it has,What steps will you take if pc is not booting up,secure boot,safe boot,dual boot,etc,why RAM is faster than ssd,linux boot up process,... ~30 min Round 4 (HR Round) : Self introduction, questions based on projects listed on resume,some basic questions like favourite subject, why?, Why cohesity?,my interviewer asked some technical concept of MAC address,its importance,..