The interview is consist 2 rounds. one is purely on subject it is very good. Second round is horrible. the interview person worked in garages not in companies or good companies. like where he worked there is no Ac and also the systems will automatically shutdown.. he dont know any thing how a corporate looks like .. he is purely worked on domestic level. If you work for mnc dont attend the garbage interview. they dont know mncs and you dont know how is domestic environment. simple example.. corporate environment 24 hours ac there is no power fluctuations.. so your troubleshooting will starts from different level and all mosts systems will maintain good condition means under warranty. as a desktop engineer your role in corporate sector your role is you need to identify the issue and report it to vendor he will fix the issue. in garbage domestic what interviewer said they will use generations to generations. your answer need to start from there. i humble request don't attend the interview this type of domestic level.