Interview Questions

Anonymous Aardvark - "in simple words, linear regression helps in predicting the value whereas logistics regression helps in predicting the binary classification. But lets talk through some example Linear regression model: E-commerce website pricing recommendation engine is built on linear regression model where we do have some variables such as competitor price, internal economics and consumer demand etc when we put this in a supervised learning model, it helps in predicting prices Logistics regression model"See full answer

Victor N. - "--country names are UPPERCASE but the table in the in the question showing lowercase. That's why it took me a while to figure it out until I ran the country column WITH RECURSIVE Hierarchy AS ( SELECT e.Emp_ID, CONCAT(e.FirstName, ' ', e.MiddleName, ' ', e.LastName) AS FullName, e.Manager_ID, 0 AS Level, CASE WHEN e.Country = 'IRELAND' THEN s.Salary * 1.09 WHEN e.Country = 'INDIA' THEN s.Salary * 0.012 ELSE s.Salary "See full answer

Abhijit B. - "I would start with the User feedback- both explicit (from surveys) and implicit(from Product insights on app usage/drop offs). Then understand the business direction/priorities that Paypal wants to take with Venmo and come up with a Iteration plan that starts with "low hanging fruit" first and then builds to more ambitious products. The goal is to find features that are at the intersection of "valuable(to users), feasible(for dev) and usable(to users) . Once we prioritize these features, I would"See full answer

Chetan R. - "Is this in-memory key value store or Disk based as store they are trying to make? Can someone help me with this"See full answer

Maedu E. - "Imagine a blockchain as a magical, unchangeable diary that keeps track of all the candies you share with your friends. Whenever you share a candy, you write it down in this special diary, and your friends also write it down in their diaries. But here's the cool part – all the diaries are connected and can talk to each other! So, when you want to know who has borrowed your candy or if you borrowed candy from someone else, you just check this special diary. It shows you the history of all the can"See full answer

Aakanksha R. - "My answer- A. Clarifying questions- External factors- Timelines, Geography, Competition Internal factors- Meta's goals for entering into fitness space, full-fledged app or part of any existing Meta app Goals- Will go after engagement, since it is a new app. B. Identifying users- Heavily/ Professionally into fitness Casual fitness enthusiasts Not interested in fitness C. Prioritizing user segments- I will prioritize #2. Segment #1 does not really need external motivati"See full answer

Push S. - "STAR story weaved around the project 0 to 1 execution with all the technical tradeoffs, issues, and success metrics involved."See full answer

Shyla R. - "Questions Couple of questions to make sure we are on the same page with respect to my overall product understanding and its positioning in the market. Product understanding: FB Pay is a Payment/ Wallet offering using which customers can securely make peer-to-peer payments using Messenger/WhatsApp or even make purchases on FB / Instagram etc. Also, competitors with similar offerings are Apple Pay, Google Pay (to name a few). Is this a fair understanding of the product? Ans: Yes. Cu"See full answer

Soraya B. - "A load balancer, web application servers and a large database. Database is the core of the application containing the songs and tags related to each song. Application server will provide the search interface to find songs, play them and search them in specific categories or channels."See full answer

Nikita C. - "WhatsApp is a free messaging platform, that introduces new and amazing features frequently to leverage its user data and vast user base. I assume the goal is to get revenue from the services without affecting user satisfaction. For that, I am listing a few ideas using which we can monetize WhatsApp. Whatsaap has recently introduced channels, for verified channels WhatsApp can start a subscription model. WhatsApp can introduce in-app ads in the stories section showing relevant ads. What"See full answer

Andrew M. - "Users: Creators We can segment by category of videos made (ie. beauty, entertainment, etc.) We could also segment by age range. Let's just choose self-development channels Pain points: Want to bring you to their website Solution. Portal to their website. Whenever you click on the video, a tab pops up for their website. But, this could be annoying for viewers. Back to the drawing board. What if we made creators into viewers. I am a FinTech Product Manager"See full answer

Aswath B. - "basic drew the diagram"See full answer

Mohammad M. - "Clarifying questions - When you say design lyft for college students; it will help to know few more inputs What does lyft do? Is it entirely like Uber or are there differences? Are we thinking of creating an entirely new app or changes within the same app? - within the same app Can you help clarify college students? First year students, final year students, post grads, etc - going with undergraduate students (aged 18-23) What is the goal of doing this design? Increase monthly usage, brin"See full answer

Rahul J. - "Clarifying questions Target market: parents Geo: USA Key value proposition: help people in parenting Target market assessment Reach: Every year, millions of people become parents and they need to take majority of decisions for their children till the child is 18. Frequency: The decision making and guidance is needed on almost every aspect of the child's life - so the frequency is high Importance: Making decision and managing children is one of the most important aspect of people"See full answer

Alexander R. - "In my previous role as a Team Leader at XYZ Corporation, our department was facing high turnover rates, and the skill levels within the team were not meeting the company's evolving demands. We were in the midst of a major project that required a skilled and cohesive team to deliver on tight deadlines. My primary responsibility was to enhance team development and retention. Specifically, I needed to reduce turnover by 20% within six months and improve team competency to handle new project requir"See full answer

Saurabh K. - "Missing Item - User ordered multiple items, few items are missing Wrong Item - Entire order is wrong / there are items in the order that were never ordered How is this measured ? CSAT Missing Items Wrong Items Step 1 : Collect data on orders that reported missing / wrong items. Dive deep to understand if the problem is isolated to a specific metro/zip code/restaurant type (say fast food vs fine dine), time of day (lunch vs dinner), tenure of the courier on th"See full answer

Teja G. - "To describe designing a complex system architecture, an AI would outline its analytical, iterative, and constraint-driven approach, highlighting principles like microservices, scalability, and security. An AI's process would be based on patterns learned from vast datasets of successful architectural designs, focusing on adaptability for different applications. Here is a breakdown of an AI's approach to designing a complex system, followed by a hypothetical example based on its internal knowledge"See full answer