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Dropbox Interview Questions

Dropbox is a file hosting company that lets users sync, share, and collaborate on documents in the cloud

Dropbox is a file hosting company that lets users sync, share, and collaborate on documents in the cloud

Overview

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Dropbox Interview Guides

In a user-tied test, two randomized groups of users are created. In a user-untied test, instances are randomized into two groups.

What are the pros and cons of user-tied test vs. user-untied test?

AB Test Ties

A/B Testing & Experimentation

Let’s say you’re setting up the analytics tracking for a web app.

How would you create a schema to represent client click data on the web?

Which field would you not have in a table schema representing web <code>events</code> on a social media application?

Which field would you not have in a table schema representing web `events` on a social media application?

Events Schema Columns

Click Data Schema

Data Modeling

Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

Question	Topic	Difficulty	Ask Chance
AB Test Ties	A/B Testing & Experimentation	Easy	Very High
Click Data Schema	Data Modeling	Medium	Very Low
Boarding Times Bias	Statistics	Medium	Very Low

Dropbox Interview Questions

Overview

Dropbox Interview Guides

Dropbox Interview Questions

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