System Design Interview Questions

shg - "(This was not search autocomplete based on prefix matching question.) First of all, please note :- The interviewer is not expecting you to get to the right answer in just 1 hr. These systems have been designed over months and improved over years and its impractical for anyone to expect you to get to the right answer in 1 hr. (There is no one single right answer). At the end, the interviewer (director level person) told me the same. What they are looking for is your thought process, getting from"See full answer

L B. - "For data distribution drift: DL Divergence or PSI (Population Stability Index) performance: two categories: 1st operational metrics: runtime. 2nd model performance: loss function, MAE (regression), business metrics: overall watch time, DAU, revenue lift etc Outlier: data distribution"See full answer

Vidur K. - "Clarifying Questions First, let me try to clarify what kind of self-driving car are we talking about here. Let' say, we have the following top-level assumptions: Fully autonomous Family Sedan Car US Market This technology is only available with Google In a real face-to-face interview would pause to ask the interviewer to correct assumptions or ask for other features. Consumer Family - uses the autonomous ability of the car to spend time with kids while dropping them off to"See full answer

Mitchell K. - "What has been the most complex System Design question you were asked?"See full answer

Develop games G. - "asdsad"See full answer

Roger R. - "Get data from database CDC to Kafka; Write from Kafka to a Bucket; Send the batch file to Visa from time to time;"See full answer

Raina M. - "Clarify the ask/ goal and scope Talk about the general need for travel in a Covid/post covid world + how it aligns with Meta's mission and business (the Why) Audience /Behavior segmentation with needs/pain points Prioritize Suggested 3 Solution territories Dived deep into 1 and mentioned tradeoffs/ risks for that one Summarized with a few GTM considerations/ideas Please note: Although the interview was scoped for 30 mins, the interviewer spent the first 15 diving into past work e"See full answer

Sneha D. - "Created a solution for remote online learning app on the lines of coursera and also made a option for live streaming classes . Uni admin creates uni account, courses, adds instructors; instructors can create content , give classes ; student searches, enrols, consumes content. Used micro services architecture with APIs for all functions, RDBMS, NoSQL , indexed with redis and elastic."See full answer

Mark - "Clarifying questions: What's Lyft current goal and how does this new focus on Deaf drivers align with Lyft's goal & strategy? Do Lyft already have service/product to enable deaf users to drive for lyft? Assume We don't have any existing product/service to allow deaf users to drive for Lyft today We are designing for the ridesharing business and that the Deaf drivers can drive for all types of Lyft rideshare options Lyft's Mission: Improve people's lives w/ the world's best transport"See full answer

Jaya S. - "Understood the problem statement by confirming details with interviewer. Approached by listing down all the basic features being provided by the platform. Platform -> Organizations can register themselves. One org can have more than one recruiters. Recruiters create jobs on the org portal. Candidate can apply to the jobs. Recruiters can accept and reject the applications. Categorized 4 parent tables by taking hints in between. The tables were USER -> ID, Name, Phone No, mail ID, Profile Des.("See full answer

Jonas P. - "Searching for podcasts over topics is quite easy nowadays. However, usually we either don't find any podcasts interesting enough or are overwhelmed with choice. What really indicates what podcast we want to listen to at the moment is our mood, energy level etc. Additionally, we typically have some requirements, like being on the train and having one hour to spend, or only a five-minute interval while preparing breakfast. As such, I want an interface that lets me search for length. I want my"See full answer