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Explain how the bias-variance tradeoff functions in machine learning, and can you describe a specific scenario where this tradeoff has had a significant effect on a model's performance?

How would you distinguish between left join, union, and right join in the context of SQL queries?

What would be your ideal team to join in Whatsapp

Determine the sum of the maximum sum path that passes through the root of a given tree.

What are the factors that determine the time complexity of SVM training? How does the time complexity during SVM inference compare to its training time complexity? What are the time complexity implications of using different kernels like Linear and RBF in SVMs?

You have a friend who has two kids. They tell you that they have at least one boy. What do you think are the odds that the other child is also a boy?

When was the last time you took a risk?

What is it about the Data Scientist role at Whatsapp that excites you the most?

How do you know Whatsapp is the right fit for you?

How would you construct a parser to handle strings with deeply nested brackets?