It was a terrible interview experience. I admit that my knowledge and working experience didn't fit the job, as I was unable to answer the technical question properly, but the interviewer's attitude was rude and disrespectful. At first, she keep interrupting me to speak. In the later part, she even criticize my older age with shorter working experience compared to her staffs, a very “kiasu" mindset, and said "You're too ego to ask for this salary",
To the interviewer : Please at least mind your language.
Conclusion : It's a blessing for not being to work with such toxic superior/manager.