ServiceNow Staff Software Engineer interview questions

Got message of recruiter on linkedin, she informed me about the role & the process. This role was of UI specific. It was 5 rounds of interviews. All were based on result of last interviews. I had 4 rounds of discussion. I got rejected from HM round. In all rounds HM was quite tricky, person was moody it seems. All other interviewers was friendly and helpful.

1. HR/TA discussion 2. Hiring Manager (Techno managerial) Either they are doing an evergreen hiring to just keep the pool of candidates or they have no clue about what kind of candidates they are looking for. The interviewer doesn't know that a HashSet in Java doesn't store duplicate values. If we want to remove duplicates from an unsorted array, sorting is the best way (If Hashset it not allowed to use). If you want to copy static files, CDN is the solution and this person being a tech manager says CDN is a magic and he doesn't want to use it. FYI, CDN is a software with a logic behind it and not a magic. Please train your interview panels. Seems like knowing some one very close is the only way to get into your company.