Interview Questions

Surbhi G. - "When choosing a machine learning algorithm for a system, I take several parameters into account. Initially, I identify the problem's nature, whether it's categorization, regression, clustering, or dimensionality reduction. For instance, if I'm dealing with a classification problem, I might lean towards algorithms like Decision Trees, Logistic Regression, or SVMs. Moreover, the availability of resources, including memory and computation power, is important. For large datasets, I might prefer an a"See full answer

Abhijit B. - "Clarifying question- What exactly is this product expected to do ? - are we trying to build a community around people passionate about gardening ? or are we trying to give them better tool and seeds or something else ? Do we have any time or cost constraints ? or any specific business goal we are trying to achieve ? Is this a non profit or a for profit venture ? 2) Users: Which users segment are we trying to go after and what are the pain points ? Is it millennials and gen z or someone in Boom"See full answer

Anonymous Stork - "For Xbox, the next-generation product I propose is a virtual reality headset. The rationale is threefold: Industry Trends: Competitors like Meta and Apple are investing heavily in VR/AR, signaling strong market potential. Xbox Legacy: Xbox has a history of pushing innovation in gaming hardware (e.g., Kinect), and VR represents the next frontier beyond traditional consoles. Strategic Need: With console sales flattening, Xbox must expand into new experiences that deepen engagement and different"See full answer

David P. - "delete"See full answer

Riku H. - "Great question. Before I start can I start asking some clarifying qs? By video I am assuming this is FB videos where it's selectively fed unto the newsfeed correct? Yes For FB events should the user be fed with their events, their friends, events or also events in their network? Good Q. I would say yes for the purpose of this question that that's all in scope. Is videos the same as reels? No in this case they are similar but different products where FB videos do not have the 90 sec t"See full answer

Logan S. - "Clarify the Goal (What Does Success Look Like?) Asked: Why is DoorDash launching bikes for Dashers? Is it to: Expand Dasher availability in dense urban areas? Lower delivery times or costs? Increase access to work for those without cars? Each possible goal shapes the metrics differently. Broke Metrics into Categories: Operational Metrics Measure how well bikes are functioning as a delivery method. Average delivery time (bike vs car/walk) Order completion rate for bike Dashers On-t"See full answer

Anonymous Minnow - "Goals (Prod & Safeway) User Groups: Shoppers: College Students Professionals Families Elderly New customers (not already in the store) I selected elderly due to trends on the aging population being a significant population in the next decade and it being a group we have the most opportunity as Safeway to support. Pain Points **Most likely these customers are buying things in person or someone is purchasing items for them and gettin"See full answer

Madhu K. - "Clarifications Just so I understand the question, are you asking me design a mobile app to check the menu of a particular restaurant ? Yes Where will this app be available ? Global or US Only ? US only Are there any constraints that I have to keep in mind. In terms of money, time , resources etc ? No constraints Can i assume that the goal of the application is to enhance the dining experience of the customer ? By enhance I mean customer delight ? Yes Lastly,"See full answer

Suraj - "UberPool Product built for Uber Uber is a network of drivers & riders that allow to transport riders from A to B UberPool UberPool product solves for 2-3 riders to take a trip to a destination that works for everyone. It helps with reduced cost for riders, reduced emissions, make it faster to reach destination during high traffic hours makes it harder to find a ride --> until you find users willing to go to same destination "See full answer

Sadhana U. - "Know your audience Understand who the end user is and their role within the organization. Adapt technical lingo to lingo that can be understood by the end user. Diagrams of functions with less dense text is helpful for non-technical users. If it presents like a Manual, that's a turnoff. If it presents like a Guide, non-technical people can follow it. Simplify the problem By simplifying the problem you can explain it to your client in her/his own words. Try to use examples from the client'"See full answer

Oluwaseun F. - "Too Technical and too serious. Show personality, they do not put on videos most times, so you won't see them, but they are watching you."See full answer

Samuel S. - "Clarification questions: What is the time frame we want to build this? MVP 6 months What markets and geos are we targeting? e.g. developed markets and scope it to just US and canada Are we targeting any particular meta platform ? facebook, IG, whatsapp or i can pick ? Across mobile and web platforms. Yes Alignment with Meta's mission and vision and discusison on Product dynamics itself Meta's mission to empower people to build communities and bring the wo"See full answer

Pratik H. - "Clarify- 1) How much time do we have to do this?- 2 years 2) Is there a goal for this product?- We are looking toward engagement towards the Olympics 3) Are we building this for a global auidience or just the US- Up to you 4) Should I keep Meta's mission in mind here? Not necessarily...thinking through the Olympic committee lens Lets understand the Olympics. Its the games that are hosted once every 4 years. Its a global event that hosts many different athletes from various countries. There a"See full answer

Shashi R. - "Clarification — Need to design an MVP for Booking’s homepage to improve CLV — Objective is to test out things to get more CLV out of our existing or new customers right? yes — apart from this objective, is there anything that I have to keep in mind? nope — is there any preference in user groups or geography or platform? mobile, open to all Cool, I get the gist of it. Improving or increasing CLV is a function of retention & cross-sell. — retention what all things we can build for reten"See full answer

Faraz A. - "Describe basics of web browser and http request. Then go into Google's search engine. For follow-up questions, talked about http vs https (encryption), sql vs nosql data store, s3 blob storage, encryption policies, retention policies."See full answer

Rahul S. - "I have a 10 years experience"See full answer

Anonymous Moose - "Clarifying Questions: Why does Meta want to build this product ? {Aligns with Meta's mission of connecting people} What's the goal ? Does Meta want to monetise this initiative in any way? {It wants to increase the total number of users using this platform and then in the mid-term increase engagement} User Groups: Young (20-40), tech-savvy working professional; seeking doctor consultation for self, friends and family members (First) Older mass (50+), seeking frequent and accessible doct"See full answer

Anand K. - "I started off with defining the users of the system. From them i dervied the functional requirements and categories into MoSCoW. Then for the DB part, Userprofiles, App data to be stored in a RDBMS. The binary apps to be stored in a scalable, distributed DB such as S3. The app data from RDBS to have a link to S3 URLS. Then i touched upon Partition tolerance while scaling, Replication, Caching at multiple levels, Load balancers at multiple levels. This being my first System design interview i"See full answer