Amazon 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

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

Nilanjan D. - "Amazon Prime will generally have a limited group of uploaders rather than a million of them. This should influence the design of the Uploader service as it doesn't need to scale that much. Also the Encoding service role was not too clear"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

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

Aditya O. - "Why is it answered like a Product Design Question? Shouldn't this be a strategy type answer analyzing the pros/cons of the service etc.?"See full answer

Ven E. - "I saw this question in one of my interviews."See full answer

Sourabh G. - "Functional Requirement Monitor health, metrics Alert in case of failure/anomaly Visualize the live health Analyse machines on periodic basis Non Functional Should not exert load on machines low latency Highly scalable Logs/Metrics Gathering push - machine gather and send to system and low priority background thread along with batching pull - heart beat check (for offline machines) Processing Real time streaming using Kafka/kinesis + Flink TimeSeries database for stor"See full answer

Adib M. - "Useful article on API migration https://www.linkedin.com/pulse/tips-successful-api-migration-pooja-nihalani/"See full answer

Deepti K. - "I gave multiple answers including polling the service every 10 sec to see customer. Or we can have the client side call which will send this data after 10 sec to us. We will store in dynamo DB and then send through pipelines to redshift DB for analytics."See full answer

Ian R. - "You might build a product like this a few ways. I think you'd definitely want a temperature sensor device (maybe like a TMP422, or maybe there's a different one that is standard for wearables) that was worn by the individual. As far as tracking social distance, my answer here is more dependent on the state of the art of robust (wearable) distance measurement. Maybe there's something available better than ultrasonic sensors, maybe there's some kind of electromagnetism based solution that isn't in"See full answer

Chaitali M. - "Clarifications: Is it the voice only Alexa devices or includes echo show (video)? Goal: To have people to safety quickest Users: Alexa owner At the house when somebody breaks in Family Single adult/seniors Outside the house at the time of break in Police Department Pain points/user group: Owner in the house at the time of burglary Inform all the house members at the earliest. Send SOS out on all/selective Alexa devices to ask family members to reach a safe place 2"See full answer

Priyanka C. - "Firstly need to check is this service really beneficial or not. And video service provide more realistic perspective about the product so keep it"See full answer

Midde V. - "Front Page Layout Design for Newspaper App Header Section Logo: Displays at the top left. App Name: Displays alongside, so very prominent. Search Bar: Centered with search to find articles within the application. Navigation Menu: The links to the respective sections, World, Politics, Sports, Entertainment, and Opinion, etc Main Content Area Top Stories Carousel: It is a rotating banner that displays the top 3-5 news stories with images along with their headlines. Each story should be cl"See full answer