System Design Interview Questions

Priya K. - "Clarifying questions : Which Kindle device are we talking about ? Kindle paper white, Kindle Oasis? , Kindle paper white 6.9' , Kindle tabs ? - Kindle oasis Kindle Oasis , what are the metric we are trying to achieve ? users onboarding? more marketshare? onboard amazon existing customers Landscape : Competition : In ebook readers, the main competition comes from Kobo, iPads, tabs. Kindle oasis feature is especially and absolutely for reading purpose and buying books to read and th"See full answer

M A. - "Clarifying question - Fb Timeline is essentially my profile wall on FB where I can post content. My friends, friends of friends or other users of FB can come and view my profile and stay connected. Content that I post on my timeline, also gets cross posted on my friends feed. Is that understanding correct? Are there any new goals of change of product strategy that I need to be aware of? Motivation/Why - FB timeline is a mature product, but it still aligns very well with Meta mission of connec"See full answer

Allison C. - "If I were to design a smartwatch app for Uber, I'd sort my work into two buckets: modifications fro the mobile-native app and new features that would be considered for the Uber experience on a smartwatch. As for modifications - you'd really have to think through the customer journey of ordering an Uber from your watch. For the purposes of this question, the only use case to use Uber would be to order and complete a ride from one point to another, not to look at ride history or get help on a pr"See full answer

A S. - "Clarified with interviewer: How it is used ? user will give facebook page of school as input What is the criteria for declaring school as duplicate ? same name and location used exposed APIs of parent service to create and maintain a inverted index [msg queue+spark]. Duplicate matching service will use elastic search [and filter out input school page]. Elastic will search and return results of school name and geospatial matching ."See full answer

Sahil A. - "Clarifying question: By high-tech, we mean internet enabled refrigerator which uses technology and assists us in our decision making or takes decisions for us Users: Working women Homemakers Bachelors and Spinsters living alone Other family members (Elderly, Kids etc) Prioritized users: Working women, Bachelors and Spinsters living alone Problems: Food left in the refrigerator gets rotten as it goes out of notice I am at the supermarket and I dont know the inven"See full answer

Rahul J. - "Clarifying questions Target geography: USA, all urban areas Form factor: Mobile app, supported on iOS and Android Items to be borrowed: simple appliances like toaster, FMCG products, etc. Target market USA has a population of millions of people People generally need to frequently borrow household items from neighbours in case of emergency (or even otherwise) Internal company assessment Meta's mission is to create communities that help each other. This problem ties in well with t"See full answer

Exponent - "This is a Design a Product question. For this, we'll want to follow the formula for success: Ask clarifying questions Identify user types, behaviors, and pain points State the goal and use cases List current solutions Improvements / net new solutions Evaluate and select solutions Measure Success Summarize Ask clarifying questions The PM interview isn't about your ability to come up with the best solution right away — it's about bein"See full answer

Chermaine Y. - "Zero in on the problem, the expectations of user are to find a restaurant but their feed is uninspired so they may bounce out of Yelp. Identify the impact size of user feeling like discovery is not personalised enough by seeing % of users that selected a restaurant from the homepage If large enough, I will look at who is likely the ones that want personalisation and why? Do they feel like they want to try new restaurants or are they finding it difficult to find restaurants they have been"See full answer

Praveen V. - "to clarify, there is nothing specific about FB email. you expect all functionalities of typical email program like msft/google etc assume there are no restrictions. i.e. not restricted to use within FB only As always, fb has great suite of tools to bring people together and build community. its only natural that if i have fb account why not i have FB email address.... assume its a new product, they we need to acquire and engage users and then think about retention this case..... for any produ"See full answer

Sangeeta P. - "Since I am residing in Bangalore, I will consider the Bengaluru airport. The airport has 2 terminals. I am going to consider the security scan done at both the terminals for the estimation. Does it include security scans for both international and domestic flights? --> Both The airport crew members and pilots also go through the security scan. So, should I include only them as well or only the passengers in my calculation? --> Only the passengers Number of people going through the security scan"See full answer

Rahul M. - "We should define automated Scheduled Updates for deployment to keep the application up to date."See full answer