Booking.com Full Stack Engineer interview questions

I applied through a referral, whole process took more then one month. First I got a hackerrank test consists of 15 MCQs related to javascript, css and html and 2 easy programming question. Then half an hour recruiter screening call, She asked question like, why change current company, why booking, are comfortable in relocating, current project description, tech stack and scalability and lastly knowledge about A/B testing. Then two technical rounds, In round they check the knowledge around javascript, css and html In second round they check knowledge around data structure.

Applied online, code rank question, average algorithm questions, nothing special about this interview. Only two more difficult questions. I didn`t receive any answer yet, just writing a bit more to fufilll Glassdoor requirements.