Google Interview Questions

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

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

Calyan - "Launch p2p payments on a chat application Clarify - - - - - - - - - - - any specific chat app in mind? [no] Is there a 3rd party vendor tech we can incorporate [no, build grounds-up] Markets [US] Framing - - - - - - - - - - - Messaging apps mission: be the go-to destination for 1:1, n:n info sharing and comms. Use network effects to gain market share Biz/product goals: Growth, gain more market share Engagement: time spent, instances of interaction and sharing Revenue: ads,"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

Abdurhman M. - "For larger projects, companies will often hire project managers to plan, document, organize and oversee a project's life cycle, helping ensure projects are completed on time and on budget. However, due to limited resources such as limited budgets or personnel constraints, many teams function without a project manager."See full answer

Bhavna S. - "Success for an engineer means using skills and knowledge to solve real-world problems, grow continuously, and build a meaningful career."See full answer

Negar H. - "SW: Headway (Audio book app) Goal: Track user engagement with the product. (Analytics) To Track user engagement with the product I would first define the user actions defined as user engagement, and then define quantitative metrics to track user behaviour. User actions -> engagement: Actions: User Plays an Audio book (following by user's retention) User uses Next chapter button to continue listening User marks Audio books as favourites User shares Audio books Metrics: DAU & 2."See full answer

P D. - "Cost Reduce data cost (google fi cost 10$ per gb while in india costs are pretty less than that) Can prompt to connect to closed wi-fi network if users has connected earlier Coverage In India, majority of the population lives in rural areas, need to solve for that Safety and Security Protect users from scamsters / malware /viruses etc. Net Neutrality Ensure that there is no bias towards google sites only"See full answer

Sim S. - "Started with user-groups to identify the differences world wide: speed of internet, how high end devices are The interviewer just wanted to dive into the questions of latency & the technical fast. I then said let's separate out server vs client. On server side, cannot have australian users hitting california servers for data. So must be some sort of global availability of caching. And ensure rapid read out of that cache so something like a redis solution would help. Then switch gears to cli"See full answer

Anonymous Panda - "Goal: The goal of the product is to create a virtual communication system that enables the CEO/Executives of Google to have realistic in-person interactions with people located in different parts of the world. Identifying Different Users: CEO of Google Business executives and professionals Selecting Right User: The primary user for this product is the CEO of Google who needs to have a virtual communication system that can facilitate face-to-face interactions. Defining Features: High-q"See full answer

Tiago R. - "function permute(nums) { if (nums.length <= 1) { return [nums]; } const prevPermutations = permute(nums.slice(0, nums.length-1)); const currentNum = nums[nums.length-1]; const permutations = new Set(); for (let prev of prevPermutations) { for (let i=0; i < prev.length; i++) { permutations.add([...prev.slice(0, i), currentNum, ...prev.slice(i)]); } permutations.add([...prev, currentNum]); } return [...permutations]"See full answer

Rev - "Narrow down on a person (born in city childhood - school - college - work - retirement) Age: 0-5 = ignoring travel for this part (might travel with parents) 5-19 = weekdays school, weekends outings School distance 5 km , total = 10km (to & fro) (4 intersections * 1min(time spent) = 4 min/ day) 52 x 5 x 4 = 1040 mins ~ 15 hrs 15 * 14 yrs = 210 hrs Weekends 52 x 2 = 104 days * 0.3 = 30 days Trips = 10 km (8 intersections * 1min(time spent) = 8 mins) 30 x 8 ="See full answer

Ben G. - "Mobile typically involves creating designs optimized for smaller screens and touch-based interactions, while desktop designs are optimized for larger screens and mouse-based interactions. Mobile Pros: Greater accessibility: Mobile apps can be used anywhere, as long as the user has their phone. This makes them convenient for people whose rhythm of life is relatively high and requires quick and convenient access to modern technology, services, and gadgets. Wider audience: There are"See full answer

Sarabjeet S. - "Clarification: What type of business partners are these, some examples? Why isn't a phone/Google meet sufficient for communication? Any specific countries - abroad? With unlimited resources: Mission - To drive increases in Google's business through partnerships Goal of this project - Enable Sundar to communicate quickly and effectively with partners Product vision - Multi-language simulcast of Sundar's message tailored for individual partners Details: Allow Sundar to relay the same message t"See full answer

Rev - "watch time = #users x avg videos/user x avg duration of video x % watched #users - already huge can't affect more avg videos/ users - sticky videos (interactive video content form + promoting youtube shorts in recommendations) avg duration of video - double edged sword (quick summaries of long videos) % watched - reduce unecessary ads + improvise and provide native advertising gamification - to win points after reaching a daily target + few days of free premium create a viral trend/ video"See full answer

Patrick K. - "Full travel packages. Flight + hotel + experiences. They have all the data in the world to scrape to see some of the top places to visit in each city or country. Coupled with the ability to find the cheapest flights to make these trips affordable."See full answer