You Need to Know about the excel and log files clearly if you know about it then its easy to crack the interview and for the further rounds you need to know about the python basics and so on. I need studied about log files in my interview process so i can't able to crack the interview process

It is but easy and must have the patience for this role since we are mostly communicating with the merchants. Most of the merchant are not much technical and making them understand and clearing there queires