A9.com Software Engineer Search Analytics Interview Questions

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A9.com

Part of Amazon

17 Sept 2011

Anonymous interview candidate

No offer

Positive experience

Average interview

Application

I applied online. The process took 1 day. I interviewed at A9.com (Santa Clara, CA) in Jun 2011

Interview

Phone inteview

Interview questions [3]

Question 1

Why is polymorphism useful in OOP

Question 2

How to grep phone numbers in Unix directory. The files are spread across the directory tree.

Question 3

inner join and outer join definitions. and normalization