System Design Interview Questions

Personal W. - "Payment system requirement assumption: Need to be ACID Amount limitation - some validation for max input size can be done at client level/ API level. Need to store historic info - GDPR The information to be stored for database assumed can be structured so RDBMS like mysql or Postgres Notification requirement - if fail or success need to be text or email to user and or caller Scalable - Assumption that it deals with critical transaction so Availability and Scalability requirement i"See full answer

Farhan I. - "What software is being used to draw the design?"See full answer

Rjj - "I tried solving this question and here is the recorded video for the entire solution - https://youtu.be/G_LIbTp58XA Feel free to comment here or on the video for further discussion."See full answer

V V. - "Simple file system ( Hash Map , LSM trees), and consistent hashing. I failed to discuss about conflicts ( Versioning)"See full answer

Michael N. - "The pain points articulated (no contextual recs, isolating experience, etc.) are pain points in the broader audio listening industry - there's no existing audio product at Meta already and assuming this is a net new product, wouldn't it have made more sense to have pain points specific to Meta? E.g. "there's no sense of real-time community in FB Groups" or "the barrier to engage in FB groups feels high" It almost feels like she just regurgitated things she's learned from her time working on Alex"See full answer

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

Anup S. - "1 Billion Matches per day is it over sized ?"See full answer

Teja G. - "Modernizing banking legacy systems and applications The modernization process typically involves moving from mainframe-based legacy platforms to solutions based on cloud and other modern digital technologies"See full answer

GalacticInterviewer - "I first clarified what he needed for the leaderboard meaning did he need a gaming leaderboard system, a stock market leaderboard system where the trades placed would be ranked in terms of values or a coding platform leaderboard where the users are ranked as per the points earned by solving the problem? He answered that he wanted a multipurpose leaderboard system He was specifically interested in the design of the api part Explained him that assuming we had a flask api there would be a get re"See full answer

Rui B. - "Clarification and Assumption In house labeling vs outsourced? labeling text, images, bounding boxes, segmentations etc? what kind of issues have we observed? Assuming that data collection and pre/post-processing is done by different team and labeling starts with receiving data and ends with sending files back to my team. "outsourced, images containing objects, 2 dozen classes of objects to label bounding boxes." 2.Goal Quality is important because downstream effect. garbage in garbage out."See full answer

Mehdi K. - "It would be good to talk about the impacts on costs as well"See full answer

Vaishnavi I. - "create models -> truck, driver, trip,status. trip will have foreign key relationships with truck,driver and status. Create CRUD endpoints for all the models. Create a read by truck id endpoint that filters the data by id (can also filter the data from the previous mentioned endpoint). update trip data can also update the driver status of the truck."See full answer

John N. - "There are several factors that I can employ to come up with a dynamic pricing system that has capability and capacity to adjust product or service prices based on the various parameters or factors that affect market prices such as demand and supply. This will be built on customer behaviours, competitors, demographics, and other relevant variables at my disposal. First, I will define the Requirements and Goals of the system. what is the business needs that this dynamic system will cater. Here fa"See full answer

Anonymous Hare - "Sharing the approach for functional requirements we tool to solve this question. Functional Requirements This is only for the Registered users What is a "For You" page ? Home page where you get suggestions based on people you follow. Interactions like/share/comments (done by user) Interests (shared by the user during registration or onboarding) sports choices/ region choices/ Video sharing platform. So how many videos should we s"See full answer