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Interview Questions

Review this list of 348 interview questions and answers verified by hiring managers and candidates.
  • Lyft logoAsked at Lyft 
    7 answers
    Video answer for 'A $5 discount coupon is given to N riders. The probability of using a coupon is P. What is the expected cost for the company?'
    +4

    "Is there a reason a confidence interval was used to solve this problem over just using the mean/expected value directly?"

    Aarav G. - "Is there a reason a confidence interval was used to solve this problem over just using the mean/expected value directly?"See full answer

    Data Scientist
    Statistics & Experimentation
  • Dropbox logoAsked at Dropbox 
    10 answers
    Video answer for 'Design Dropbox.'
    +7

    "Why skip defining the data model? Or did I just miss it?"

    Kurt K. - "Why skip defining the data model? Or did I just miss it?"See full answer

    Engineering Manager
    System Design
    +1 more
  • Amazon logoAsked at Amazon 
    11 answers
    Video answer for 'Design Uber Eats.'
    +8

    "basic drew the diagram"

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

    Software Engineer
    System Design
    +2 more
  • Meta logoAsked at Meta 
    9 answers
    Video answer for 'Define a meaningful social interaction metric for Facebook.'
    +6

    "First, I would like to discuss and align what is meaningful social interaction. Given facebook's mission to empower users to build communities and get people closer, it is important that users have "meaningful social interaction" The goal of defining this metric is to use this as a north star or success metric around any efforts to increase engagement. It can also help with ads targeting/monetization by showing ads only during deeper interactions and hence might get better yield. Given faceb"

    Praveen - "First, I would like to discuss and align what is meaningful social interaction. Given facebook's mission to empower users to build communities and get people closer, it is important that users have "meaningful social interaction" The goal of defining this metric is to use this as a north star or success metric around any efforts to increase engagement. It can also help with ads targeting/monetization by showing ads only during deeper interactions and hence might get better yield. Given faceb"See full answer

    Analytical
  • Dropbox logoAsked at Dropbox 
    12 answers
    Video answer for 'How do you sunset a project?'
    +9

    "Video has audio disruption starting at ~7th minute, did not understand what law he was talking about. Can someone please clarify?"

    Ushita S. - "Video has audio disruption starting at ~7th minute, did not understand what law he was talking about. Can someone please clarify?"See full answer

    Program Sense
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  • PwC logoAsked at PwC 
    Add answer
    Video answer for 'Deploy and Monitor an Instagram Ranking Model.'
    Finance and Strategy
    System Design
  • Amazon logoAsked at Amazon 
    10 answers
    Video answer for 'Design Amazon's Kindle payment system.'
    +6

    "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"

    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

    Product Design
    System Design
  • Wealthfront logoAsked at Wealthfront 
    30 answers
    Video answer for 'Design YouTube.'
    +26

    "What software is being used to draw the design?"

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

    Product Design
    System Design
  • Better.com logoAsked at Better.com 
    2 answers
    Video answer for 'How would you design a relational schema for a calendar application?'

    "Here are the key entities to design a relational schema for a calendar application: User - userid, email, firstname, lastname Calendar - calendarID, calendarName, caledanUserID, defaultUIView, created, updated, status Event - eventID, eventName, eventUserID, isRecurrence, startDateTime, endDatetime EventReminder - eventID, reminderMethod(email, notification), reminderTime, reminderTimeUnit(min, hr, day) Event guest - eventID, userID, isRequired, acceptStatus"

    Chris C. - "Here are the key entities to design a relational schema for a calendar application: User - userid, email, firstname, lastname Calendar - calendarID, calendarName, caledanUserID, defaultUIView, created, updated, status Event - eventID, eventName, eventUserID, isRecurrence, startDateTime, endDatetime EventReminder - eventID, reminderMethod(email, notification), reminderTime, reminderTimeUnit(min, hr, day) Event guest - eventID, userID, isRequired, acceptStatus"See full answer

    System Design
    Technical
  • LinkedIn logoAsked at LinkedIn 
    3 answers
    Video answer for 'Design a product for parenting.'

    "Clarifying questions Target market: parents Geo: USA Key value proposition: help people in parenting Target market assessment Reach: Every year, millions of people become parents and they need to take majority of decisions for their children till the child is 18. Frequency: The decision making and guidance is needed on almost every aspect of the child's life - so the frequency is high Importance: Making decision and managing children is one of the most important aspect of people"

    Rahul J. - "Clarifying questions Target market: parents Geo: USA Key value proposition: help people in parenting Target market assessment Reach: Every year, millions of people become parents and they need to take majority of decisions for their children till the child is 18. Frequency: The decision making and guidance is needed on almost every aspect of the child's life - so the frequency is high Importance: Making decision and managing children is one of the most important aspect of people"See full answer

    Product Manager
    Product Design
  • Amazon logoAsked at Amazon 
    2 answers
    Video answer for 'Build an image carousel that displays a sequence of images (using React.js or vanilla JS).'

    "Started by asking clarification questions regarding design constraints and desired features. Break down the into re-usable components - HeroImg and Carousel (with 3 images rendered) Code the components and managed the state for both in the parent component."

    Akshay J. - "Started by asking clarification questions regarding design constraints and desired features. Break down the into re-usable components - HeroImg and Carousel (with 3 images rendered) Code the components and managed the state for both in the parent component."See full answer

    Frontend Engineer
    Coding
  • OpenAI logoAsked at OpenAI 
    Add answer
    Video answer for 'How do you select input for modeling if there are features highly correlated with each other?'
    Machine Learning Engineer
    Concept
    +2 more
  • Meta logoAsked at Meta 
    20 answers
    Video answer for 'How would you build an audio product for Facebook?'
    +16

    "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"

    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

    Product Manager
    Product Design
    +1 more
  • 19 answers
    Video answer for 'E-commerce (1 of 5)'
    +16

    "SELECT SUM(orderquantity) AS totalunitsorderedyesterday FROM orders WHERE order_date = DATE('now', '-1 DAY') `"

    Akshay D. - "SELECT SUM(orderquantity) AS totalunitsorderedyesterday FROM orders WHERE order_date = DATE('now', '-1 DAY') `"See full answer

    Coding
    SQL
  • Meta logoAsked at Meta 
    11 answers
    Video answer for 'Design a fitness app for Facebook.'
    +7

    "My answer- A. Clarifying questions- External factors- Timelines, Geography, Competition Internal factors- Meta's goals for entering into fitness space, full-fledged app or part of any existing Meta app Goals- Will go after engagement, since it is a new app. B. Identifying users- Heavily/ Professionally into fitness Casual fitness enthusiasts Not interested in fitness C. Prioritizing user segments- I will prioritize #2. Segment #1 does not really need external motivati"

    Aakanksha R. - "My answer- A. Clarifying questions- External factors- Timelines, Geography, Competition Internal factors- Meta's goals for entering into fitness space, full-fledged app or part of any existing Meta app Goals- Will go after engagement, since it is a new app. B. Identifying users- Heavily/ Professionally into fitness Casual fitness enthusiasts Not interested in fitness C. Prioritizing user segments- I will prioritize #2. Segment #1 does not really need external motivati"See full answer

    Product Manager
    Product Design
  • "I recently had an experience with the Chipotle mobile app where I accidentally placed an extra order. Realizing my mistake within seconds, I tried to edit or cancel the order but found no option to do so in the app. Despite searching FAQs and attempting to contact the local store, I couldn't resolve the issue in time. This experience highlighted the importance of user-friendly design and clear communication in apps. If I were managing such a product, I would advocate for features like a grace pe"

    Puneet A. - "I recently had an experience with the Chipotle mobile app where I accidentally placed an extra order. Realizing my mistake within seconds, I tried to edit or cancel the order but found no option to do so in the app. Despite searching FAQs and attempting to contact the local store, I couldn't resolve the issue in time. This experience highlighted the importance of user-friendly design and clear communication in apps. If I were managing such a product, I would advocate for features like a grace pe"See full answer

    Product Manager
    Behavioral
    +2 more
  • Dropbox logoAsked at Dropbox 
    6 answers
    +3

    "No of Cars in 1 year = [ Total Road Length] / [Distance Covered by 1 Self Drive Car in One Year] Clarifying Question - How does Mapping work? I assume the car has a bunch of cameras and the car needs to go via a road each once to do the mapping for Google Street view. Is that correct? Assumption Google Street view required cars to go via road once and then use camera for mapping Assumption for average speed of the car - This can vary if the car is on the highway Assumption of Area of"

    Raul K. - "No of Cars in 1 year = [ Total Road Length] / [Distance Covered by 1 Self Drive Car in One Year] Clarifying Question - How does Mapping work? I assume the car has a bunch of cameras and the car needs to go via a road each once to do the mapping for Google Street view. Is that correct? Assumption Google Street view required cars to go via road once and then use camera for mapping Assumption for average speed of the car - This can vary if the car is on the highway Assumption of Area of"See full answer

    Product Manager
    Estimation
  • Google logoAsked at Google 
    1 answer
    Video answer for 'How would you improve YouTube for content creators?'

    "Users: Creators We can segment by category of videos made (ie. beauty, entertainment, etc.) We could also segment by age range. Let's just choose self-development channels Pain points: Want to bring you to their website Solution. Portal to their website. Whenever you click on the video, a tab pops up for their website. But, this could be annoying for viewers. Back to the drawing board. What if we made creators into viewers. I am a FinTech Product Manager"

    Andrew M. - "Users: Creators We can segment by category of videos made (ie. beauty, entertainment, etc.) We could also segment by age range. Let's just choose self-development channels Pain points: Want to bring you to their website Solution. Portal to their website. Whenever you click on the video, a tab pops up for their website. But, this could be annoying for viewers. Back to the drawing board. What if we made creators into viewers. I am a FinTech Product Manager"See full answer

    App Critique
    Product Design
  • Airbnb logoAsked at Airbnb 
    20 answers
    Video answer for 'As a PM at Airbnb, how would you increase bookings?'
    +17

    "Great. I'm going to get started by asking clarification questions for (1) understanding of the gap by assessing current product features for bookings via platform?, (2) brainstorming possible solutions, (3) how to implement solutions, and (4) suggesting metrics to validate solutions towards an increase of bookings Clarification questions & Assumptions: What is customer segment (family/ group/ individual)? In which market? (individual & US market) Should I specifically focus on one of use ca"

    Anna H. - "Great. I'm going to get started by asking clarification questions for (1) understanding of the gap by assessing current product features for bookings via platform?, (2) brainstorming possible solutions, (3) how to implement solutions, and (4) suggesting metrics to validate solutions towards an increase of bookings Clarification questions & Assumptions: What is customer segment (family/ group/ individual)? In which market? (individual & US market) Should I specifically focus on one of use ca"See full answer

    Product Manager
    Product Strategy
  • Amazon logoAsked at Amazon 
    2 answers
    Video answer for 'Implement k-means clustering.'

    "at first I want to know number of cluster I will put random number if I don't know and I will use method called Elbow method or Silhouette Score ,Gap Statistic and Davies–Bouldin Index to know the best number of cluster and I will use scikit-learn library to import kmeans from sklearn.cluster import KMeans kmeans = KMeans(nclusters=2, randomstate=0) kmeans.fit(X) and X this my data "

    Taheia S. - "at first I want to know number of cluster I will put random number if I don't know and I will use method called Elbow method or Silhouette Score ,Gap Statistic and Davies–Bouldin Index to know the best number of cluster and I will use scikit-learn library to import kmeans from sklearn.cluster import KMeans kmeans = KMeans(nclusters=2, randomstate=0) kmeans.fit(X) and X this my data "See full answer

    Machine Learning Engineer
    Analytical
    +5 more
Showing 161-180 of 348
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