Interview Questions

Abhijeet D. - "Would go for a feature that is low/medium cost first but very high on returns."See full answer

Rev - "Clarify: Everything mentioned in the question (all devices and how to access them) Reasons why a subscriber might not be using? Forgot that he has a subscription Doesn't like the service and forgot to cancel the subscription Doesn't like service and planning to cancel in next cycle For all 3 cases we need to remind him/her about the service and encourage to use it Awareness - about the service via google nest notifications, smart refreigerator display, chromecats to cast youtube"See full answer

Rahul J. - "Problem statement The water heater can currently be controlled only physically i.e. the user must be present infront of the heater to manage it. Key value proposition The user must be able to control the water heater remotely using an app (preferably via their mobile phone) Target geo: USA, OS: both Android and iOS, Form factor: Mobile Target market Water heaters are used by everyone who lives in an area experiencing temperatures < 20 degree Celsius. The user uses the water heater eve"See full answer

Alice Z. - "[I'm working on answering questions more concisely, so to practice, I will type this answer in paragraph form] To clarify the question, I understand there are at least two entry points for Stories - one within Facebook (website, app) and one within Instagram. Would you like for me to focus on the Instagram experience of Instagram Stories? Would you like for me to focus on existing markets or emerging markets, or I could decide based off where I see the greatest opportunity? (Interviewer: focus"See full answer

The_ A. - "The best and average of both the algorithms is same which is O(nlog(n)), but the worst time complexity of QuickSort is O(n^2){a case where all the elements are sorted in opposite to the fashion/order you want} while the worst TC for merge sort remains the same O(nlog(n)). and The SC for QS=O(logn) and MS=O(n)."See full answer

Anubhav A. - "Started at 1.48 Clarifying question: Are we interested in a particular lens for this problem? Looking back in history to understand what significant changes did fast internet made in the world: -> Fast Internet - More consumption -> Fast Internet - More Adoption -> Fast Internet - Cheap Internet Let's try to see what kind of things will change in each of these categories. Let me look at it from a lens of an end user (internet consumer uses the internet for work and maintaining their socia"See full answer

Ramesh Y. - "Clarifications: Is it passenger/cargo/defense Answer: Passenger Is it direct or stops included - Direct Last I read London had 80 M passengers annually Per month - 6.7 M Per Day - 220 K Assumption here - London is a hub and it has flights to all continents. Assumptions are the split below Flights to Europe -- 30% Flights to USA -- 20% Flights to Asia -- 30% Flights to Africa -- 10% Flights to Australia -- 10% Dubai is part of Asia - 30% of 220 K is 66K Within Asia - Passeng"See full answer

Darpan D. - "Clarifying and Assumptions Is there any specific geography we need to restrict to? Assumption: Total worldwide. Is there any specific segment we need to restrict to? Assumption: All segments. Number of users Total worldwide users: 300,000,000 Storage per user Slice the users into 3 segments. Low users 80% Free tier 2 GB per user available Using the 80-20 rule for segmentation. Medium users 10% Basic paid tier 2 TB per user available Usi"See full answer

Ina K. - "HashMap supports insert, search, delete and retrieve in O(1). It stores data as key value pairs."See full answer

Exponent - "This is a Favorite Product question with a slight twist. We have a constraint: picking a marketplace. Let's go over the Favorite Product formula before we begin: 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 past? How does this product address these pain points differently and better? How would you improve it/make it better? Summarize Let's start! Choose a"See full answer

Anonymous Koala - "Let us define productivity. If there is a change in productivity what will be some of the impacts that can be used to measure if this is true? Finance: Are we meeting the quarterly revenue targets and able to increase our guidance as planned Tech: Are we innovating and introducing new products and services to the market, how does it compare to the historical performance People: Are people taking more days off and how is their average feedback on sentiments Partners/Customers: Who wor"See full answer

Dean S. - "I would determine if it was in line with out company goals and put together a quick analysis of the market for smart phones to talk about in the morning."See full answer

Emily T. - "Solution picked: a half software half hardware remote control"See full answer

Jayveer S. - "SELECT p1.player_name AS player1, p2.player_name AS player2, ABS(p1.level - p2.level) AS level_disparity FROM players p1 JOIN players p2 ON p1.playername < p2.playername WHERE ABS(p1.level - p2.level) <= 5 ORDER BY level_disparity ASC;"See full answer

M N. - "I'm assuming we are estimating lyft rides taken for attending Halloween parties since the usual daily ride data is already available. Let's assume Lyft is only available in the US. I'm going to start with US population and then estimate the number of people who might be party goers and then deduce number of rideshare users and then estimate how many of them will use Lyft to take them to and from the Halloween party. There are 300M ppl in US. Lets say I break down age groups 1-20, 20-40, 40-60,"See full answer

Rosmary F. - "Hinge is a company that fosters community which I'm passionate about. I'm also excited to work on such an impactful mission to contribute to the safety of its users."See full answer