The first step was writing an online test consisting of two questions within 60 minutes. However, I could attempt only one question.

I cleared the online test, then had a phone discussion with the HR. She provided me with the study material and explained what Google mainly looks for in a candidate.

My technical screen could have gone better. I couldn't understand my interviewer's accent, so I had to ask him to repeat his questions many times. I had a difficult time understanding his accent, and I believe this wasted my time, and he could not ask me more questions.

It depends a lot on who you interview with.

Binary Tree: Given any node, write a function dump that returns a String.

1. Returns " " if the node is null.
2. Returns the data if the node is a leaf node.
3. Returns the node's data, its left child's data, and its right child's data if the node has two children.