Interview Questions

Darshak S. - "Clarifying Questions: There are several different types of therapists, do you have a particular therapist in mind? Like Mental health, physical health, food and nutrition etc? Reply: You can decide And do we know what country are we building this product, since that will help me narrow down the scope of the product? Reply: USA Approach: Define the product vision and the goal that we want to achieve Target Audience is for this particular product What problems do these user currently"See full answer

Robbie A. - "A great answer will: Lay out the mission of facebook and how reactions relate to it (FB mission is to connect people, FB app has posts that make up a feed, reactions enable more engagement with posts Describe the benefits of reactions for users (less friction to engage) and for FB (more user engagement with posts which helps viewer and poster, improve newsfeed algo) Notice that you can evaluate demand for a 7th reaction by looking at posts with a high ratio of comments to reactions, and ma"See full answer

Exponent - "It's always good to start with identifying what type of problem you're tackling. The problem we need to tackle is essentially a variation on a Favorite Product Question. We know there's a formula for this type of question, so now our job is to tactically execute on the formula. Let's begin with the Favorite Product Question formula: Choose a product and briefly explain what it is Who are the users? What are their pain points? **How did competitors solve it in the"See full answer

Lewis G. - "Firstly, I would need to ask some clarifying questions: What is the goal for this app? Is it for purely education purposes or it is for improving grades? What age of kids are we talking about? Assuming most parts of the world kids go to kindergarten at age of 5. I am assuming we can have a few segments here. From ages 3-6 or ages 7-12. What country is this for, or it is for global? I would assume the following since nobody is replying in this case: The goal is for improving grades"See full answer

Khushboo S. - "I would like to appreciate the company for giving an opportunity to visually impaired colleague and also making appropriate arrangements for enabling them to deliver their responsibilities smoothly. When I become aware of a teammate who is blind, I would start with the following steps - Understanding the degree of disability they have and doing my own research on how can one interact with such colleagues and facilitate smooth coordination with them I would approach them and ask as to how c"See full answer

Anonymous Moose - "Assumption US, not global. Two categories of masks: washable/reusable (cloth based) and disposable (surgical and N95) US population is about 300 million 100M households 3 per households** Cloth: on average 2 masks needed per person so they can wash it (2*3=6 masks per HH) 100M*6 = 600M cloth masks Disposable: of the 300M, assuming about 60% is essential workers. So about 300M*.6=180M are essential workers. Of the 180M, I would say abo"See full answer

Aelaf G. - "This depends on the list of documents and the length of the documents. My implementation will use Trie with node containing the following: class TrieNode { is_end: boolean, instances: { docid → [wordpositions] }, children: array[26] } Look up for a word will give result instances{docid:wordposition...} dictionary (which can be further improved by methods like max instance on a document....you name it...) Trie space is proportional to the total characters in"See full answer

James M. - "Break down into: OPEX #Employees x $avg. cost per employee $Overhead (mktg, legal, compliance) Content cost (creator payments) 80% of advert. revenue Elec, cooling, maintenance CAPEX #Data centers Avg servers per data center Avg. cost $ per server"See full answer

Anonymous Parakeet - "Clarifying questions: Does the home have to be fully paid off to consider the millenial a homeowner? No, they just need to have the title or put a loan on it We are only considering the continental US? Yes, not territories Just four wall stationary homes, not empty land, nor RV/trailer homes? Exactly Basic Facts: 70 million millennials 300 million US population Millennials have low rates of homeownership 130 million houses in the US Millennials span == 18 to 36 Breakdown: "See full answer

Spring C. - "I tried taking a shot at this in 20 mins and typed out a solution. Why? Mission: build communities and bring people closer together Birthdays - help you connect with friends once an year, restart a conversation and bring people together. It also brings your broader friends and family closer to celebrate and builds communities . User: Birthday person Posts their birthday as public info FB reminds friends and family about the day On the day they get posts to"See full answer

P D. - "FB Vision: To empower users to build communities and bring the world closer together Reactions Product Goal: To enable users to express them in a quick and easy manner on posts / comments / videos / photos etc. and hence bringing the world closer. Currently only "Like" option is there which indicates to the creators that users like your posts. User Personas Content Creators Pain Points Single Reaction Option: Only users who like the content are able to use the reactions f"See full answer

gdecuri - "Load Balancer to multiple API Servers, pub sub system to publish user events, Game Engine Service, Write through cache and NoSQL DB. HTTP Long Polling to get user status updates"See full answer

Jax H. - "Let’s pick SFO (because it's a stupid choice.. probably easier if you pick a smaller airport) We know each passenger has to go through the scan at least once We can assume 10% of passengers go through twice People only go through scans when they depart but not when they arrive International planes are bigger so carry more people so need to calculate separately Approach Estimate how many gates there are Estimate airport operation hours Estimate the numbe"See full answer