Interview Questions

Debajyoti B. - "First Clarify whether this is for FB general account or business account Why is removing the profile pic being considered in the first place? Declining conversion rates? TTV(signup to post creation) is perceived as too high wrt competing apps? Meta is considering a single signup for all its apps(FB, Insta, WA) & is looking to optimize the same? Do we have any supporting data for this? user feedback? Next Look at current FB signup flow(assuming these are the steps since its be"See full answer

Michael A. - "First, I want to get a better sense of what is a DAU. What is considered “Active”? User sending message, reading message, opening app? All of the them, any activity within the Messenger App Second, it’s important to know the context of the change. What timeframe was this over? Let’s assume this was over the past 30 days. Ok, a follow up to this would be to check if this is a seasonal pattern? For example, there could be a correlation to Messenger usage and school starting. **This"See full answer

Jacob S. - "Cloud computing is like going out to a restaurant instead of cooking dinner at home. When you cook at home, you have to do everything yourself. You need to use your own plates, pots, and pans. You have to know how many people are coming over and buy the right amount of ingredients. If more people join for dinner than you expected, you'll run out of food! But if fewer people show up, then you'll have leftovers that go to waste. And on top of it all, you have to do all the cooking, set up, and cl"See full answer

Alfred O. - "We can use dictionary to store cache items so that our read / write operations will be O(1). Each time we read or update an existing record, we have to ensure the item is moved to the back of the cache. This will allow us to evict the first item in the cache whenever the cache is full and we need to add new records also making our eviction O(1) Instead of normal dictionary, we will use ordered dictionary to store cache items. This will allow us to efficiently move items to back of the cache a"See full answer

Istvan K. - "Thanks you for sharing insight about the app which I would liek to summarize in 2 structures: functional 2 technical requirement. Requirements: Functional requirement: Able to share messages, siles , and other content like photos, sounds Create groups for conversaion Size: 500 million users, 50m DAU -> 500M active chats daily Files not stored in the system but is can be shared.. Integaration with other APPs Technical requirement: Availability: Can you help me to understand the a"See full answer

Prateek G. - "I will first start with listing down the GOALS of Google Sheets as a product GOALS: Enable better collaboration amongst employees in an organisation Make edits parallel Share with co-workers so that the team can work seamlessly Increase user engagement, activity and make more users aware about the functionality and usefulness of Google Sheets Next, i will try and list the broader ACTIONS a user might take ACTIONS: Create a new Google Sheet Share with co-workers M"See full answer

BriskD - "I watched a couple of videos like this, one of them by Exponent staff (I think). It was disappointing that the architecture diagram and the walkthrough was a general layered architecture that you can apply to any backend system. I was wondering if there are videos that can be considered a reference material to watch, learn and improve on the tech (sys design) skills, and not so much about the soft skills."See full answer

Sam - "Disagreement --> persistent ---> more data insights ---> positive relationship ---> mentor/trust"See full answer

Jay C. - "How would you monetize messenger? Clarifying Questions Is this messenger app or web? INTERVIEWER: Assume both are a possibility, but feel free to pick one Is there a larger facebook goal or metric we are optimizing for? INTERVIEWER: Monetization speaks to revenue so assume goal is to increase revenue for Facebook as a whole Does this include messenger Rooms or should we stick to the traditional FB messenger? INTERVIEWER: _Messenger rooms is a great call out, but let's stick"See full answer

P K. - "Assuming this is meant to be a standalone product. Its a standalone app. Goal: Simplify the shopping experience in store for a user. Success would be defined in terms of app usage as a proxy for user satisfaction. I want to think about the a given user segment, their pain points, ways to improve their pain and a way to evaluate those solutions. Broadly user personas associated with grocery shopping are - stores and customers. For the purpose of this interview I want to focus on customer se"See full answer

Karthik M. - "1. Step 1: clarify Let's establish the mission of Google and Youtube. Google's is to provide and make information more accessible. Youtube's might be to help people get their content, their word and themselves out into the world. I mean so many of Youtube's ads have been about how the diversity of individuals and their content, so that makes sense. Let's establish what is Youtube. Youtube has 3 primary stakeholders - creators, viewers and brands/corporations and within them"See full answer

Pavani B. - "Request inputs/feedback on my response below with regards to this question and ways to improve and if it looks apt for this question. As a TPM at xxx, I was responsible for delivering a feature that would provide prescription (medications) alternatives to users in the Prescription Shopping Consumer Experience App. The project had a tight deadline as it was something that our account management team promised to a client who wanted it for their employees. My goal was to ensure smooth development"See full answer

R S. - "One of the biggest risks I have taken was in a recent product, where we developed a new feature and released the feature externally without QA sign-off. Feature - Interactive Travel Itinerary Maps We had about ten days from the time we decided to include this new feature in the external launch. Usually, the biggest chunk of time in each release cycle was the sign-off from an external QA team. We fast-tracked the dev effort and completed the development of the feature in five days. Unfortunately,"See full answer

Alice S. - "Clarify understanding of the problem space. What does success look like? How is it measured? Platform specific? Market specific? Time period? Business goals? Then perform a funnel analysis to understand user journey and look for problems or opportunities. Choose a user segment to focus on. Identify different user segments and prioritise one. Summarise the goal of the user and the friction point. Brainstorm solutions. Come up with a number of rough solutions. Balance the business n"See full answer

c8lin - "Clarify Which part of product lifecycle is Zoom in for this scenario? Can I assume present day? Yes, assume whatever you want. Goals Zoom’s mission is to connect people by providing a virtual meeting space, particularly via video Zoom for business mission is to provide a virtual workspace for professional connection, particularly via video Actions *Business sign ups *Business onboarding Meetings set up to use zoom *Users logging in *Creating meetings using zoom Starting meetings"See full answer

Ashish D. - "This is a geometric variation of the "Sliding Window" technique. The core challenge is converting a 2D coordinate problem into a 1D linear problem using angles. The standard approach is the Angular Sweep. By converting the Cartesian coordinates (x,y) of every tree into Polar coordinates (specifically the angle θ), we can process the trees based on the direction they lie in relative to the observer. The Strategy Coordinate Translation: Calculate the relative coordinates (Δx,Δy) for"See full answer

Ketshi B. - "Clarifying questions When we say signals do you mean just features that are fed into the ML model that decide how the content should be ranked? Is newsfeed the front page of fb app. Can you expand what you mean by relevance? User journey User enters blue app.. Newsfeed is the first thing they see. User either continues on newsfeed ie scrolls through it or moves to a separate part of fb As they are scrolling they may see contents from friends, creators and ads, or other pages that they have been"See full answer

Sumeet R. - "Clarifying Questions: Assume US Audience or Worldwide? US Only Assume short form content or long form content ? Assume all Premium or Ads Support ? All Solution: US Population 300M Will remove 70 ages as not relevant audience or not have access to YouTube = 60m Leaving 240M. Adoption of YouTube with remaining Population = 60% (including overlap and exclusion with other services e.g. Netflix) Total Audience that watches YouTube daily = 144m (about half of US Populat"See full answer