Interview Questions

Scott S. - "Designing a Price Drop Tracker system like CamelCamelCamel involves creating a platform that tracks price changes for products on various e-commerce websites and notifies users when prices drop. Here’s a detailed system design for such a service: Functional Requirements User Registration and Authentication\: Users can register and log in. Support for social media logins (e.g., Google, Facebook). Product Tracking\: Users can add products to their watchlist for"See full answer

Abhinav M. - "Always assume good intentions on the part of both parties when resolving conflicts. Then proceed with a STAR example."See full answer

Bimal M. - "Clarification questions: What do you mean by online furniture-selling market? Why would google want to do it? Why does google want to do it now? Where does google want to launch it? Let me make the assumptions answering above questions: It is like google flights, say we call it google furnitures, where it organizes, curates furniture information to the users and then refers to the seller website instead of selling furniture directly to the consumer like amazon, walmart, way"See full answer

VContaineers - " Compare alternate houses i.e for each house starting from the third, calculate the maximum money that can be stolen up to that house by choosing between: Skipping the current house and taking the maximum money stolen up to the previous house. Robbing the current house and adding its value to the maximum money stolen up to the house two steps back. package main import ( "fmt" ) // rob function calculates the maximum money a robber can steal func maxRob(nums []int) int { ln"See full answer

Karthik T. - "Clarifying questions : I would like to confirm what type of parking spots we are talking about, should we assume cars ? Assumption : Cars Is it referring to only parking spots in non-residential complexes or public places or does it include residential too ?Assumption : both Assumptions : Places where we could see parking spots Shopping malls Parking in the park Residence spots Legal parking spots Variables in play Population = assuming a family of 4 => population / 4 (nu"See full answer

P R. - "First I'd like to clarify the definition of reactions and confirm that it's same as what exists today. Definition: Reactions provides users the ability to provide richer expression beyond 'like' Business goal: Since this is a mature product, the business goal is to improve user engagement Product goal: Bring people closer together by letting people provide more accurate sentiment to the community based on the content Personas: 1. Content creator 2. user using reactions **Li"See full answer

Daniel P. - "Okay, so I understand the question: "how does Google Maps compute estimated time of arrival"... There are a couple scenarios when ETA is calculated: planning a future journey, planning current journey. Can we assume scope to the current journey? The learnings will likely be transferable. User inputs to ETA include origin, destination, and route chosen. Let's assume first that the user has chosen an origin, destination, and a route chosen. We can come back to these assumptions later. The way I'"See full answer

Adi S. - "Addressed the duality of the feature - each user is a consumer and provider Addressed pain points such as cleaning, security "See full answer

Manohar A. - "Some follow-up questions to correctly understand what "improve" means here? Is it to have: more riders, better user experience, monetization, more/new market penetration. Let's assume interviewer requested to choose whatever I prefer. I choose better user experience which might trigger other areas of improvement as well. Some more probing questions: To I need to consider USA only or any other country/region or global? Can I consider only popular on demand taxi service for this question? One wa"See full answer

Anonymous Newt - "CQ: What's the goal - we are just exploring Any specific timeline we are targeting - NA Why specifically podcast - its a growing area and can help engage the customers Any specific geography to be kept on mind - You tell Approach: Understand Netflix’s landscape Understand more about the Podcast space via Porter’s 5 Forces framework Decide mode of entry Tradeoffs & Risk Netflix’s landscape; Product - OTT player Who uses - kids, adults When do they use – leisure"See full answer

Will P. - "There are several categories of ads that users may encounter on YouTube content pages, depending on the user's device and browser. To narrow the scope of my answer, I am going to assume this is a non-skippable, midroll video ad that is 15 seconds long, and shown to a non-premium desktop user in the US. The next step is to clarify the motivations behind the proposed feature. Are non-relevant ads harmful to the overall user satisfaction? Do users engage more with relevant ads? Are advertisers mak"See full answer

Brandy L. - "Restaurant Types High-end Fast-food Regular User Types Restaurants – seeking operational efficiency and increased revenue. Customers – categorized by group size and dining intent: 2–4 Friends/Family – casual dining. Solo Diners – convenience and quick service. Groups > 4 – shared orders and split bills. Goal Design a tablet solution to achieve product-market fit by addressing key pain points and driving high ad"See full answer

Ash J. - "Clarify: I will assume that misinformation includes posts, videos and pictures and that sources could be Groups/ Pages and Individuals. High level structure: Mission, Information funnel and drop-off points, Metrics & Trade-offs, Mitigations Mission/ Strategy: Facebook's mission is to bring the world closer together and empower people to build community. Reliable information is key to fostering a healthy community. In light of recent world events and public sentiment, it is important f"See full answer

Sdn D. - "Clarifying question: AOV/USER it means that the total price paid by a user in a certain period should be more than what it is now ? Is the average taken on a daily/ weekly/monthly basis ? I would presume it to be a monthly basis , as it helps us a defined period of time to analyse user beharviour and track number of orders. Daily wont be succesfull mertric , as ocassionally only a user may order multiple times in a day , also weekly is also a viable metric but that wont help us to analyse"See full answer

Rajat A. - "CQs: Any specific geography? Assuming Indian market Are we partnering up with some other company for delivery ? Assuming yes Time frame for MVP? 1 year Scoped out Problem statement: Design a food delivery app for restaurant owners for India market within a timeframe of 1 year Mission of this app: Helping owners and vendors in smooth coordination of orders and delivering orders on time Product goal: Since this is a new product , we will focus on adoption/acquisition in short t"See full answer

Bajrangi C. - "As a Technical Program Manager at Amazon, I typically coordinate cross-functional teams to drive technical project execution, ensuring timelines and deliverables align with business goals. My day involves managing stakeholders, resolving blockers, and continuously optimizing processes for scale."See full answer

Rotem L. - "Meta Pay - What is it? Payment platform that lets people buy and send money on Facebook, IG and Instagram on platforms like FB and IG, people already find things they like and the businesses can sell directly on the platform through shops so Pay is closing the last mile and letting them also check out quickly once they’ve added their card details once. It’s making it a real one-stop shop. It also allows making more transactions directly on the platform without having to enter card deta"See full answer

Gabe M. - "My stab at this (feedback welcome): Total distance for last car 500 meters: Assuming mostly standard cars, average car length + gap = 5 meters. Acceleration time total 505 seconds: first car reacts slowest, accelerate in 10 seconds. Every other car needs 5 seconds (can see ahead). Takes 90 seconds to cover 500m: to cover 500m that means 90 seconds (20kph = 10km in 30min = 1km in 3min = 500m in 1.5m) A bit under 10 minutes = 90s + 505s. Probably a bit less as last car"See full answer

Karan K. - "2 Approaches: 1) The more intuitive approach is doing a multi-source BFS from all cats and storing the distance of closest cats. Then do a dfs/bfs from rat to bread. Time Complexity: O(mn + 4^L) where L is path length, worst case L could be mn Space Complexity: O(m*n) 2) The first approach should be fine for interviews. But if they ask to optimize it further, you can use Binary Search. Problems like "Finding max of min distance" or "Finding min of max" could be usually solved by BS. "See full answer