Interview Questions

Kk - "Clarifying Questions : By reducing bandwidth , do you mean reducing the total size of video transfer reduction ? Ans Yes Is it ok to reduce the resolution by reducing the bandwidth : Ans May be yes and no Any app in particular you are looking forward which could help talking from its standpoint : Ans : Youtube Assumptions : Youtube has a compression algorithm which can still be made better with the evolution of technologies Solutions ( prioritised list ) Improve the compressio"See full answer

Krishnan S. - "I would start with few clarifying questions for the investigation and diagnosis of the problem. Timing and volume: For how long is the peak surge being noticed? Past few days / weeks / months? Clarify about 'certain times'. Is it weekday Morning (Peak), Morning (off peak), Afternoon, Afternoon (peak), Evening (peak), Evening (off peak) or weekend? Do we info on vehicle type that have the most volume? Cars, trucks, commercial vehicles, etc., Location and convenience of the gas st"See full answer

Yag S. - "I studied Exponent's TinyURL system design video. My interviewer was asking many detailed questions on API design, schema, as well as data required to store. I found system design questions are bit high level instead of depth. I think should have detail design of API, schema and some additional flavors."See full answer

Manoj K. - "I fumbled but my answer was along these lines Clarification: Are we talking about ChatGPT page or other ways to use it like API Ans: page When you say improve did you mean usage or monetization Ans: you pick We should pick user experience and usage since better product will enable easier monetization. Assume they monetize based on premium users subscription. Lets talk about users Business users Individual users Focus on business since traffic generated by individuals will not be as mu"See full answer

Pm P. - "Clarification: Are we talking of Amazon as an entity in whole (or) Amazon E-commerce ? I would like to use overlap across following buckets with emphasis on current product & markets, Future adjacencies and expansions, strengths barrier to entry in the markets either way Amazon Intuit Products - Considering Amazon as a whole - Devices - AWS - E-Commerce - Music - Video - E-Books - All other services, currently there is no overlap between the use-cases and services offered"See full answer

Dan H. - "Assumptions Instacart for Business is core Instacart with additional features and capabilities tailored to businesses. Users Potential user segments: Office managers (Focus here) Entrepreneurs/small business owners Restauranteurs Opportunities (pain points, needs, problems) Many places don’t offer same-day shipping. Inconvenient to physically go out and purchase these items from a store if urgent Hard to predict an"See full answer

Connor W. - "In the expected value of a coupon problem, you calculated variance of a binomial distribution, and used the satandard deviation, square root of variance, to calculate the confidence interval. Will that approach work the same here? For fair coin: (Heads = 0, tails = 1) Var = 10 * (.5)(1-.5) = 2.5 Stdev = Sqrt(2.5) = 1.581 Mean = 5 Z-score = (Observed Val - Mean) / Stdev = (10 - 5) / 1.581 = 3.164 P val = 0.0008% (Slightly different from the video's solution of 0.00097) Pros of this approach: It"See full answer

Shwetang S. - "Clarifying Qs: Design meaning - UI elements, front end requests and backend system architecture GIFs = standard short animated videos of 1/2 seconds built either using images or videos Make GIFs = generate gifs from images and videos Do we want to build the system for a certain volume of requests? Do you want me to consider the scalability part? I: Assumptions 1,2 & 3 are correct, ignore 3 for now Users: User b/w age 18-45 trying to generate GIFs using images(at least 3)"See full answer

Tarun K. - "I would very confidently say - Never. Did I failed with a Product? - Yes. Did I launch a product that was sub-par? - Yes. Did I failed to launch a product? - Never. Also, I don't see it as part of growing up as PM to Fail to launch a Product. I think it's a tricky quesion, better to be avoided."See full answer

Kumar D. - "def find_duplicates(arr1, arr2): p1 = 0 p2 = 0 result = [] while p1 arr2[p2]: p2 +=1 else: p1 +=1 return result"See full answer

P K. - "Clarifying questions, Before I begin, I want to make sure I understand what the product is. FB fundraiser is a platform for entities (charitable organizations) and individuals to create fundraising campaigns, invite certain users to it, share it with others and ask them to invite potential contributors to it. It is also part of the core facebook product. The approach I want to take about defining goals is as following: Define the mission of FB as a company, goal of fundraiser p"See full answer

Manik K. - "Agile methodologies are chosen by organizations to enhance delivery speed, integrate shorter feedback loops, and provide incremental value to customers. However, the suitability of Agile depends on several factors, including the nature of the work, team structure, and organizational objectives. From my experience, for teams focused on new feature development, Scrum tends to be more effective. Scrum’s structured cadence—emphasizing backlog grooming, sprint planning, and regular retrospective"See full answer

Kai W. - "The user awakes Alexa by saying the "Alexa word" Device starts recording audio from the user, and streaming it to the Alexa Cloud Service The recorded audio stream is sent to the ASR (Automatic Speech Recognition) system ASR returns the words and the order of the words in the audio stream, and sends this information to NLU (Natural Language Understanding) NLU returns the intent of the audio stream, and sends it to Alexa Skill If the intent triggers a "play" directive (e.g. turn"See full answer

Madhuri J. - "I think first we need to understand the questions better. Who these users are? (Any specific demographic, age users) What kind of stories are they sharing? How much is considered fewer? Once we get the answer or if we do not get answer we will have to make assumptions about all three questions. Based on the assumption we will have to define a vision. The vision should state what we want to achieve. Goal: Users between age 20 to 30 should get at least 100 shares, likes and comments com"See full answer

Dolores - "Clarify question: Google flight search: flights.google.com (app or website) Allows users to search for flights, sort, or filter To book, you are directed to airline or aggregator sites Vision of the product: Help users find and compare flights they want to take Users: Flyers (primary user) Airlines and aggregator sites (prices, avail, options) Flight inventory providers Success metrics: Number of users/flyers like DAUs or MAUs % flyers (DAUs or MAUs) which are repeat Success"See full answer

Alfredo M. - "The question refers to a very specific event: "step into the back for a few minutes, return and see a lot of people waiting"... I might try to clarify goals and scenario: Before I stepped back, there were no ppl waiting? If so, we might be talking about a very specific, even uncommon scenario, in which optimizations for the complete serving system in the long term might not be needed. Maybe they even arrived all together and this is expected behavior. Are people waiting for something specif"See full answer