Interview Questions

Sohum S. - "I would assume that this is similar to an intervals question. Meeting Rooms II (https://www.lintcode.com/problem/919/?fromId=203&_from=collection) on Leetcode seems like the closest comparison, it's a premium question so I linked Lintcode. I'm assuming that we also need to just return the minimum number of cars used. You need to sort for the most optimal solution, so you're constrained by an O(nlogn) time complexity. So any sorting solution could work (using a heap, sorting the array input arra"See full answer

Madhuri J. - "Clarifying questions Define ride sharing app: An app for people who wish to go from one place to another and they prefer to share the ride with fellow riders who are heading to the common route. This app provides a way to book a shared cab or Auto. Type of rides: Does not include luxury cars We are trying to enhance customer experience by ensuring less cancellations from user's side rather then cancellation from driver's side. No timelines involved Need to consider competitors"See full answer

Preetham m P. - "Clarifying Questions Are we an EdTech company adding this as a new arm, or building a new product? → New product Is the learning mode online or offline? → User can choose Are we focusing on any specific instruments? → No, any instrument Does our product include a marketplace for purchasing instruments? → No Are we building a mobile app or web platform? → Both, for India location User Personas Music Enthusiasts – Full-time learners aim"See full answer

Michelle D. - "Approach: 1) Clarify question with interviewer When we say "app", I'd like to confirm the app for which user. For example, in Rides, we have an app for the rider and an app for the driver. For Eats, we have an experience for a customer purchasing food but I don't know of the experience for the restaurant. Could you confirm which users' experience you're describing when saying "app"? Let's say rider/customer purchasing food. Also is this a situation prior to launch of Uber Eats, wh"See full answer

Jay K. - "First, let’s discuss why this is important for any platform business Think of platform businesses like Amazon or YouTube as matchmakers. They connect people who want something with those who provide it, whether it's products or content. But here's the catch: users trust these platforms to make sure they're getting good stuff. They want genuine products, safe content, and no scams. So, platforms need to be like guardians. They check suppliers and content creators to make sure they're not"See full answer

Philip C. - "Initial Assumptions I’m going to assume that this is a blue sky question, and there aren’t any constraints in terms of geo, funding, etc. With that in mind, one deeply unoptimized product is… a parking meter. I’ll assume for the sake of this answer that we’re focusing on parking in an urban environment since that’s where most parking-related friction exists. I’m also going to assume that we’re a startup and don’t have any special strengths/ weaknesses that we need to account for"See full answer

Anonymous Minnow - "First, lets dive deeper into the question. I would ask - What are the top challenges facedtoday? What user segments work well, and what do we want to focus on? What do we know about competitors, and what can we learn from them? What user flows have the highest engagement in VR today? Are we focusing on consumer use cases or enterprise? Are we tackling activation or retention, or do we want to increase engagement? To build a strategy here I would target this from four differe"See full answer

Anonymous Moth - "As a Business Analyst, I would employ a cross-functional approach for implementing virtual debit and credit cards by collaborating closely with various departments. Initially, I would work with the market research team to understand customer needs and industry trends. With the IT and security teams, I would focus on designing a robust, user-friendly, and secure virtual card system. Collaboration with the legal department would ensure compliance with financial regulations. Partnering with the mar"See full answer

Vysali K. - "Limit and rank() only works if there are no 2 employees with same salary ( which is okay for this use case) For the query to pass all the test results, we need to use dense_rank with ranked_employees as ( select id, firstname, lastname, salary, denserank() over(order by salary desc) as salaryrank from employees ) select id, firstname, lastname, salary from ranked_employees where salary_rank <= 3 `"See full answer

fuzzyicecream14 - "App I Don’t Like: Electrify America What Electrify America Is Supposed to Do Electrify America is an app designed to help electric vehicle (EV) owners locate, access, and pay for fast-charging stations across the U.S. The app provides real-time station availability, allows users to initiate and monitor charging sessions, and offers membership plans for discounted rates. Ideally, it should enable a seamless charging experience, especially for long-distance travelers relying on i"See full answer

Henry H. - "Overall, a successful Netflix viewing session requires that the user was able to find a piece of content that they loved watching. Now, to break this down, how we might define this: -Time browsing (from app open to content played) -Satisfaction --> inferred satisfaction: did user complete watching the piece of content? --> explicit: did the user rank that they loved the content (2 thumbs up)? The way I would evaluate a new Top Picks ML feature would be to implement an A/B test as follows: Te"See full answer

Steven M. - "Clarifying questions: I assume we're focused on the consumer side of this? ** Yes I am assuming post booking begins immediately after booking a ticket and ends when the user leaves the airport at their destination. Does that sound right? ** Yes Goals: United Airlines wants to get its passengers to their destination seamlessly, safely, and on time. Users: I think about user groups in 3 main buckets. 1) 24 hours following booking 2) >24 following booking through 24 hours before boarding "See full answer

Rachita D. - "I will start with making sure that I have a clear understanding of Medium and how it works. I will ask the interviewer to fill in any gaps in my knowledge of Medium. Medium is a platform for novice, and professional writers to express/share their opinions readers to read about subjects that matter to them the platform has been running for some time (6-7 years), so it is relatively mature (this confirms that Medium has found a product-market fit) Here is my high-level structure for answeri"See full answer

S R. - "Wrote up a simple cache system using python dict. Added TTL requirement. Then went into code-level concurrency issues for the cache."See full answer

Hari priya K. - "Netflix is a OTT platform that streams content , TV shows, movies documentaries, to the subscriber's of Netflix. Netflix has approximately 90 million subscribers in USA alone and Netflix's revenue is generated based on their subscriptions. The user buys Netflix subscription, logs in , opens profile and opens the home page of Netflix. 1. Confirmation of the Assumptions Homepage Definition: The homepage is the screen users see after logging into their profile, showing tailored recom"See full answer

Helen Z. - "Two clarification questions first! When we say quarters, are we assuming the quarters are stacked on top of each other, or are we measuring across the diameter? let's say they are stacked. And second question, is the height of the building just from the ground floor to the top of the building? yes. Okay, the key numbers we need to find then are the height of the building in feet, and the # of quarters that fit into a foot. First for the height of the building, the key numbers are heigh"See full answer

Kartikeya N. - "Clarifying questions: Can I assume the timeframe to be today, ie Dec 2024? : Yes What country are we targeting? Lets say it is India. When we say "Use google search to find a new job" do we mean to say that they use Google search in their job search process or also convert and actually find a job? : The former. I am assuming we are only considering when someone directly searches jobs on Google and not searches for some job search portal on google: Yes. How long should the search"See full answer