Hi, I recently received a Masters in CS and I'm scheduled for an interview with American Express Global Payment Systems in US. And the questions will be on the database/data structures/algorithms side of the GPS.

1. Could you help me with any learning resources? Ebooks/videos/books/articles etc... 2. Anyone has any idea what kind of Fermi questions are asked by AMEX?

Any help is much appreciated. HN has been very helpful for me and this may be my first job in the industry.