Interview Questions

Kim L. - "Explore expanding beyond just two small roooms-- bigger rooms or a third room? Get insights from those who are teleporting about what the experience is like"See full answer

Sidharth N. - "My thought process below: FB's mission: Connect with people - friends, family, and build communities. Assumptions made: Goal here is to increase user engagement with an FB product, not to monetize or gather new users, though they may be indirect side-effects No blockers in terms of data or partnerships Looking at mobile specifically Classifying users Trying a matrix structure of Interest vs Ability-to-engage. 1) Enthusiastic fans :: People who are super interested in the eve"See full answer

GalacticInterviewer - "I first clarified what he needed for the leaderboard meaning did he need a gaming leaderboard system, a stock market leaderboard system where the trades placed would be ranked in terms of values or a coding platform leaderboard where the users are ranked as per the points earned by solving the problem? He answered that he wanted a multipurpose leaderboard system He was specifically interested in the design of the api part Explained him that assuming we had a flask api there would be a get re"See full answer

Shashwat K. - "Binary Search on the array and after than compare the numbers at low and the high pointers whichever is closest is the answer. Because after the binary search low will be pointing to a number which is immediate greater than x and high will be pointing to a number which is immediate lesser than x. int low = 0; int high = n-1; while(low <= high){ int mid = (low + high) / 2; if(x == arr[mid]) return mid; //if x is already present then it will be the closest else if(x < arr[mid]) high"See full answer

José N. - "My clarifying questions : what's the impact of the bug ? / responses : intermittent, no platform stability at risk, but a feature, many customer rely on this buggy feature what's the estimation of the user impacted ? / responses : 65% of the users how long to figure out a solution ? / reponses : 1 week My action plan : delay the publish of the release in order to protect the brand identity and customer trust talk to the big customer to explain the situation with transparency and nego"See full answer

Tiago R. - "function isPalindrome(s, start, end) { while (s[start] === s[end] && end >= start) { start++; end--; } return end <= start; } function longestPalindromicSubstring(s) { let longestPalindrome = ''; for (let i=0; i < s.length; i++) { let j = s.length-1; while (s[i] !== s[j] && i <= j) { j--; } if (s[i] === s[j]) { if (isPalindrome(s, i, j)) { const validPalindrome = s.substring(i, j+1"See full answer

Utsav M. - "reduce lag time and latency. people joining at a given time for adoption."See full answer

Indranil G. - "Are we also considaring the office buildings or only houses? Both So we know the NYC land area is 1254 sqkm 1 square kilometer = 247.105 acres that means 1254 sqkm will be = 309870 acr ( rounding) So this is total space, in this say living area is 80% that means 80% * 309870 = 247896 acrs In this 60% residential which will be 148738 acrs residential area and rest is 99158 acres are business blocks Menas (148738/247) =602 sq km =602178 sq mtr residential and 401449 sq mtr for busine"See full answer

Musa G. - "Depends on the kind of goals they are trying to pursue. I would clarify with the interviewer. . if you work for say a fintech, and are trying to create say a real-estate app with company resources - no go . if you want to write a book on management say while being an EM, then there's some wiggle room here. As long as you get the book approved by your IP team, should be ok . if you want to work on a hackathon project on something tangentially related to your team, still ok as long as the concept"See full answer

productchamp - "Volume of Boeing 747 / Volume of 1 ping pong ball; subtract the estimated ping pongs in the fuel tank to fine tune"See full answer

Greg W. - "Equation = (# of phones sold in Africa every month * % pixel market share) Africa population = 1.5 billion Smartphone penetration = assume 50% Assume smartphone penetrations grows 1% per year Assume 2 year smartphone renewal cycle Current smartphone population = 1.5B x 50% = 750M Each year 50% of this populations gets a new phone = 375M 375M / 12 = ~31M per month New smartphone population each year = 1.5B x 1% = 15M 15M / 12 = ~1 per month 31M + 1M = 32M smartphones sold per month US mar"See full answer

Googlepm 1. - "Since there is ample amount of data, there are various options to use them : Track travellers : Using traffic data coupled with user's GPS, in consent with the user, find the user's exact spot, this can be valuable in case of emergencies or tracking a school bus. Better ticketing : I understand that the notion is to NOT build anything with navigation, however if we have all data on the traffic, data analytics can predict if particular routes are used most, say if three connection routes a"See full answer

Rishi G. - "Problem Statement: The Fibonacci sequence is defined as F(n) = F(n-1) + F(n-2) with F(0) = 1 and F(1) = 1. The solution is given in the problem statement itself. If the value of n = 0, return 1. If the value of n = 1, return 1. Otherwise, return the sum of data at (n - 1) and (n - 2). Explanation: The Fibonacci sequence is a series of numbers where each number is the sum of the two preceding ones, typically starting with 0 and 1. Java Solution: public static int fib(int n"See full answer

Cristian A. - "I have this approach of: 30% seniors, to help the semi senior to grow. 30% to 35% semi seniors, to help the jr to grow. 37% to 40% jr or software engineers. With this approach and can foster a culture of grow but also be prepared to rotation of the team. And if you have to add more people, the onboarding is more simple."See full answer

Kiran K. - "I depends on the severity of the bug and the impact of the new feature. Is the bug a blocker and is having direct impact on the business flow? Is the new feature mission critical and has a major impact on customer experience, revenue, business, etc. Conduct an analysis. Include key stakeholders in this discussion."See full answer

Exponent - "One technique we like to use when explaining technical concepts to non-technical people is to use analogies to help with memory retention. For this type of question, we'll use the Restaurant example: > Imagine you're at a restaurant with a variety of waiters - each waiter will only take your order for one specific item (i.e. one waiter for pizza, one waiter for pasta, etc.). An API is like a waiter in this example as it will only perform a specific order. An SDK on the other hand is like having"See full answer

Praful B. - "Using a join: This is the most common way to do a lookup."See full answer