Interview Questions

Anonymous Muskox - "DoorDash - An online Food Ordering and Food Delivery Company. What is the Goal of the DoorDash? The goal is to empower local business and connect to the users. Who are the the different stakeholders involved to achieve this Goal for DoorDash? Users Restaurant Partners Delivery Partners What they need to do to achieve this goal? More users have to come on the platform for ordering Restaurants has to fulfil the requirement of maximum number of Users Delivery part"See full answer

Ekta M. - "I would start with some clarifying questions like: Is there a deadline when all these needs to be updated by? Do we have upgrade scripts ready? When do we have change freeze? Once I have these few clarifying answers I would start planning: I would meet with all the teams involved in the upgrades Document any resources downtime during the upgrade create a risk registry along with mitigation plan Roll back plan create a phased rollout plan based on deadline Post upgrade get a"See full answer

William D. - "Interesting question! Before we begin, I have a few clarifying questions: Is this for Netflix the company, or a service from a startup or other company that caters towards kids with a netflix-like set of services? My assumption is this is a Netflix esque service, and not part of the broader Netflix product suite/company. Why are we building this? Assumption is that we CEO identified opportunity for this product, and we want to acquire users and engage them. By kids, do you mean"See full answer

Alex N. - "Perplexity - the measure LLM is surprised when it predicts next word. For example: I love to eat --- if LLM selects as next word "fruits" it will be less surprising than if LLM selects as next word "metal". It is better to have lower perplexity score. Cross Entropy is the measure how well model match true labels. So if the next word is "cat" and LLM assigns 0.5 to it then cross entropy value is -log(0.5) = 0.69 and if it assigns 0.9 probability to word cat then cross entropy value is - log(0.9"See full answer

Dewansh Z. - "Clarifying questions: What type of contractors are we considering? Construction, repair, paint, electric etc. assuming there is no specificity here Is it for professional or personal - eg. For enterprises to allocate contract or personal work. Though the end result might work for both but initial go live one assuming for personal work Any specific demography Is it part of any existing meta universe - Facebook marketplace? Why this problem matters? For users: this is one of the difficult"See full answer

P K. - "Clarifying question 1: Define Friend requests -- no. of friend requests sent in the platform through the "Add Friend" button Clarifying question 2: Time period for comparison - 10% - WoW or DoD or MoM? -- WoW Gathering context: Is the decline progressive or a one-time event? --> progressive Because the decline is progressive, ruling out technical glitches, downtime, or any other reason impacting the feature uptime. Is this decline global or regional? --> global Because the"See full answer

Ramachandra N. - "from collections import deque from typing import List def longestsubarraydifflessthan_n(nums: List[int], N: int) -> int: """ Find the length of the longest contiguous subarray such that the difference between any two elements in the subarray is less than N. Equivalent condition: max(subarray) - min(subarray) < N Approach (Optimal): Sliding window with two monotonic deques: max_d: decreasing deque of indices (front is index of current max"See full answer

Aabid S. - "We had a huge launch on September 1st of this year where we completely redesigned our application from the grounds up and also migrated to a new platform (React.JS). This project took us 8 months and the launch was a huge deal for the team. Unfortunately the launch wasn't as smooth as we expected and despite doing multiple rounds of QA, some major issues cropped up in the core part of the app right after launch and our client was quite upset since it was disrupting their day-to-day workflow. "See full answer

Darpan D. - "Clarifying Travellers in this context are people who are taking domestic or international flights. Answer: Correct. Are we designing to integrate into an existing product line or completely standalone? Answer: Integrate into existing products. Are we designing for a specific geography? Answer: Let’s try North America first; we can expand later. Company Mission Organize the world’s information and make it universally accessible and useful. Company Strategy "See full answer

Sahil A. - "Clarify: A new company that is coming up with a solution for garage door openers The door opener will be installed in houses. Confirm if offices, service centers etc are in the scope At this point, we are looking a specific demographic/market - India Users: People who own a car and a personal parking space. The distinction here : They have hired a watchman for the house They didnt hire a watch for the house For this problem, I will focus on those people who didnt hire a watchman"See full answer

Kwabena B. - "Clarification Define rush hour? hours leading up to the work day 8-10am and after the work day 5-7pm Are we focused on specific types of drivers? American commuters. Private drivers going to and from work What is Google's goal? Increase engagement with google services Roadmap for interviewer: User--> Pain Points-->Solution--> Vision-->Features-->Tradeoffs User American commuters. Private drivers going to and from work Can't be too distracted even durin"See full answer

Gaurav M. - "To convince leadership at Google to build a wristwatch for the elderly, it's crucial to present a compelling argument that encompasses user needs, market potential, and Google's strategic alignment. Here's a detailed proposal: 1. Understanding the User Needs Target Audience Primary Users: Elderly individuals, especially those with health conditions requiring monitoring and those living independently. Secondary Users: Family members and caregivers. **Pain Points"See full answer

Lavesh D. - "Approach - Check the product scope - social network, IG, Whatsapp, etc. Check how the metric is measured and if there are shortcomings or changes in the approach Eliminate obvious reasons like seasonality, external events, analytical pipeline changes, etc. Look for internal product changes or issues In case the hypothesis falls short, find ways to triangulate the issue PS - A real interview may not need so many questions to be asked. I am just listing down questions to validate or rej"See full answer

R A. - "Company Mission: Make video communication frictionless Product: Zoom is a telecommunications tool used by companies and individuals to interact with one another. It has a freemium business model i.e. it provides some basic features to its users for free and premium features for a subscription. Features: Video and audio interactions. Built-in collaboration features. End-to-end encryption for all meetings. Recording and transcripts. Streamlined calendaring. User Base: "See full answer

Jaehyuk C. - "Q: What ad system do we have (to clarify the limitation of the ads systems and its scope)? -> need context of the advertisement. What signals of ads do we have? pictures, texts, comments, video, etc. What is daily active users on the system? (scalability) Do we need taking actions after detecting it? (further process is needed?) what device do we have ad system? PC, mobile, etc. FR: detect the weapon signals (classification) alert after weapon is detected identify the us"See full answer

Ushita S. - "A clarifying question: Is this question asking about when I met a tight deadline in a project or how did I manage a project that had a tight deadline? The answer uploaded to this question is good, I would also add 'creating a critical path from overall project schedule and then making sure that none of the deliverables in the critical path are sacrificed in order to meet the tight deadline' as an action taken."See full answer

Dhruv M. - "I was assigned to a project where the executive team said they wanted to "improve customer satisfaction" but provided no specific metrics, target outcomes, or scope. The initial brief was vague; they mentioned customer complaints were increasing, but hadn't quantified the problem or identified which customer segments or processes were involved. My responsibility was to lead the analysis and develop a solution; however, first, I needed to transform this ambiguous directive into a clearly defined"See full answer

Jagriti C. - "Clarifying questions: Will this be within the facebook blue app or will this interface/app sit separately? Volunteering can be of a few types- say for social causes or volunteering in college fest/ music fest etc. Is there a specific type of volunteering we need to consider? Let's start by revisiting company's mission statement and see if this gels with the mission- Meta's mission- To give power to build community and bring the world closer together. Volunteering is basically a way for hu"See full answer

Ravi K. - "select e.firstname as firstname, m.salary as manager_salary from employees e join employees m on e.manager_id = m.id where e.salary > m.salary; `"See full answer