Interview Questions

Himant G. - "Gusto provides the platform for HR services, Employee management/Payroll etc Why 2-factor authentication? Due to increasing cyber attacks, it is more important that the user identity be verified because the password verification doesn't seem to be just enough Passwords are compromised at times to bots, so a most robust mechanism is required which can identify that the authorized users are logging and using services Customers have often reported lack of confidence in using the product"See full answer

Rolemberg J. - "I faced a problem about components re-rendering's and unnecessary requests API's which was causing performance complications in my applicactions. I had a structure that create, edit and delete task, so GET, POST, PUT and DELETE API's methods request was necessary and bring that to compliance without compromissing the performance is hard. I started involving componentes and async functions into the useMemo's and useEffect's to have more control, another improvement was take be careful with global"See full answer

Adegnika O. - "It was a Finetech product to help people remove credit card limited balance issue. The product is design especially for business man who usually use they credit card to make purchase or big transaction. Problem Credit card have a limit amont of money they can support. it is very difficult to handle situation where people want to make a transaction that goes beyond their supported credit card balance. Having many credit card is not easy to manage and go to trip with a huge amont of money i"See full answer

William W. - "Clarifying questions Why is this company interested in building a vending machine for disabled people? We're a vending machine company who has recently learned that disabled people have a lot of trouble using our machines. We want to change that. What is the main metric this company is trying to drive? Machine usage Is there a specific kind of disability we are interested in targeting? Blind, amputees etc. Blind/vision impaired people Is there a specific type"See full answer

Anonymous Dingo - "I look at a product’s quality through a combination of user impact, business outcomes, and technical robustness. 1) A good product solves a real user problem effectively and intuitively—usability, performance, and accessibility. I look at user feedback, behavioral data, and adoption metrics to validate this. 2) A good product aligns with strategic business goals Growing engagement, generating revenue, or supporting long-term scalability. 3) I assess how maintainable and"See full answer

Neha A. - "What is the goal of FB as a company, how does marketplace help. Who are the different users (Sellers and buyers. Also mention advertisers). Sellers can be artists or small/ home business owners. they also also be infrequent sellers who come to FB marketplace when they are moving cities or moving to a new location. Buyers can be low and high engagement. We will focus on sellers - if more sellers come on the platform, it will attract buyers, generate sales, and spin the flywheel. Also, if a sel"See full answer

Deepti D. - "Clarifying questions: Who is launching this service (some options that come to mind are): Google ? If yes, why? Will it be a new product within the Google ecosystem or feature within existing and relevant Google Products (google maps, search) Startup? What is the current status of the startup/service designing it for hotels Uber/Taxi service providers - Trying to diversify their revenue stream/ add new level of engagement? Hospitality companies/hotels? B"See full answer

Araz J. - "Time taken: ~40min. I made up how Gmail Ads work A: Do you mind if I clarify a few things about this question? G: Sure! A: I would like to understand what Gmail ads is and how it works? G: Gmail ads are interactive ads that show in the Promotions and Social tabs of your inbox. A: I know there can be other emails under Promotions or Social tab such as different brands sending promotional emails. G: Gmail ads look different and are labeled as "ads by gmail" A: Great. And how does Gmail ads make"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

Ash J. - "Clarify: Has metric definition changed for what the NSM is and app startup time?-->No Are we sure that this not just a correlation and causal? For e.g. We would need to dive into a few different technical buckets around regional, version and other features launched-->No Time period: Is it over the same time period?--> Yes Goal: FB goal: Empower people to build community and bring world close"See full answer

Nilanjan D. - "Amazon Prime will generally have a limited group of uploaders rather than a million of them. This should influence the design of the Uploader service as it doesn't need to scale that much. Also the Encoding service role was not too clear"See full answer

Nr 9. - "Assumptions: The question is for a PM working for a refrigerator startup company and for a domestic refrigerator (not industrial). The first model comes in the most commonly used form factor with fridge/freezer split, and it has standard cooling specifications. Target market is the US. The startup is for profit. Product goal: To make interacting with refrigerator easy, seamless and pleasurable for the blind. Target users and channel partners: Fully blind people between the ages o"See full answer

Ds S. - "Initially I asked clarifying questions like whether the tree can be empty or not and asked the interviewer to explain what is meant by left view and the explanation for the sample inputs. Then I came up with the level order traversal approach where we visit each level in the binary tree at once using a queue and at each level print the value of the first node. Interviewer seemed satisfied with the approach and asked me to code it up. Finally gave the time and space complexity of the solution."See full answer

Nicholas S. - "First thing the interviewee did wrong is not asking clarifying questions. This is the most vague problem I have every heard, and the interviewee just made assumptions and started programming."See full answer

Jessica R. - "a top-down recursive solution with memoization in python: from typing import List from functools import cache def changeSigns(nums: List[int], S: int) -> int: @cache def dp(i, curr_sum): if i == len(nums): if curr_sum == S: return 1 return 0 return dp(i+1, currsum + nums[i]) + dp(i+1, currsum - nums[i]) answer = dp(0, 0) if answer == 0: return -1 return answer `"See full answer