Meta (Facebook) Interview Questions

San S. - "How might the system design change if it is limited specifically to a web/mobile use case?"See full answer

A G. - "Clarification Qs: What does "split" mean here? - split the UI and if so how (through tabs?) What counts as "media" - clarified already What is prompting us to consider this change? - any negative feedback from the users/ decrease in certain Newsfeed metrics like engagement etc/ any particular business goal? is this across or platforms eg desktop/mobile ? Is this for all regions? Mission of FB: Fb's mission is to bring people closer together by enabling them to build communiti"See full answer

Kofi N. - "const mergeIntervals = (intervals) => { const compare = (a, b) => { if(a[0] b[0]) return 1 else if(a[0] === b[0]) { return a[1] - b[1] } } let current = [] const result = [] const sorted = intervals.sort(compare) for(let i = 0; i = b[0]) current[1] = b[1] els"See full answer

Idit G. - "To define the success metrics for Facebook Ads, I’ll outline: Who the users are What their goals and needs are How success is measured across their journey Who are the users: Advertisers: Individuals or businesses running ad campaigns to achieve business objectives. Potential Buyers: Users exposed to ads who may engage, click, or make purchases. User journey and Success metrics: Advertisers: Acquisition:Onboarding Completion Rate: % of advertisers completing"See full answer

Rani Y. - "I would start with clarifying questions : Are we building this feature on existing meta apps like Facebook / Instagram ? Yes AM I building this in Meta suite of products or a standalone app ? Inbuilt app with in Meta product like Fb/Instagram Timeline - 1 year Geography - USA Structure : Why -> Meta Mission -> Business objective -> User segmentation -Need ( Prioritization) -> Painpoints ( Prioritization)-> Solutions ( RICE prioritization) -> Metrics / NSM -> Risks - Summary Why : WIth multiple"See full answer

Ram - "Clarification Are we focusing on the Amazon shopping cart specifically, or are there any other features involved? Are there any specific user groups (e.g., Prime users, international users) we need to consider? Is there a particular focus on conversion or user engagement? 1. Business Context Feature Goal: The cart serves as the gateway between user interest and the actual purchase, helping to reduce friction in the buying process. Business Model:Amazon take"See full answer

Kiley S. - "Set Success metrics for Google Maps: Assuming we are focusing on mobile experience… Clarify the product: Overall, it is a directions app: Gets you from point a to point b Allows for several methods of transportation - car, public transit, walking, biking, rideshare After entering location, you click your transport method, and select get directions which leads you to steps to get to you location or if you are driving or walking it speaks to you giving youthe directions aloud based on sett"See full answer

Dheeraj D. - "Thanks Hozefa for your insights on this. I see that hozefa talks about giving used cases. It would be very helpful if there was an example provided with STAR framework."See full answer

Anjali P. - "Question and video tagged not same. "See full answer

Deepak V. - "Clarification: Lender Focus: We'll cater to mortgage lenders, specifically smaller institutions or those specializing in a particular loan type (e.g., first-time homebuyer loans). 1. User Personas and Pain Points: Create two user personas: Persona 1: A loan officer at a small credit union overwhelmed with manual paperwork and slow communication with borrowers. Persona 2: A loan manager at a company specializing in FHA loans, struggling with cumbersome pre-qualification"See full answer

Bhavna S. - "Step 1: Define Objectives and Key Metrics Objectives: Understand the demand for group video calling. Assess the potential impact on user engagement. Identify technical and user experience considerations. Key Metrics: Call Frequency: Number of 1:1 calls per user. Call Duration: Average duration of 1:1 calls. Call Participants: Identify users who frequently call multiple individuals. Concurrent Calls: Instances where users are engaged in multiple 1:1 call"See full answer

Pathworks P. - "To answer this, I will focus my efforts on explaining the most common type of API used in most modern software development applications - the REST API. For the purpose of simplicity, I will also keep the topics of Authorization and Authentication out of the mix. In essence, an API is a group of logic that takes in a specific set of inputs and responds with a specific set of outputs. This is analogous to going to a drive-thru and placing an order for a meal. When you give an API a bunch of"See full answer

Geet B. - "Prompt: Define success of reels How do I investigate if reels engagement is up by x, posts are down by y Clarification: What is reels: video experience on explore page, play page. Can have comments, likes etc. Why was it launched: to promote engagement on the app, 'addictive sessions back to back. Product goal: Increase in app time, drive stickiness. Big picture: Instagram launched reels post tiktok style success, way to saving market share Define success"See full answer

gdecuri - "Load Balancer, Multiple API Servers, game Service, pub-sub system, HTTP Long Polling for status updates, write-through cache. No SQL DB to store user, game, and move information."See full answer

Daniel L. - "You're the PM for all of Instagram Stories. What is your North Star metric? Meta's Mission: Give people the power to build community and bring the world closer together. IG's Mission: To capture and share the world's moments User Types Marketplace / 2-sided ecosystem Creators and the Consumers Metric Categories Adoption Engagement Retention [not pictured]: create a table with 2 columns: Creators and Consumers and 3 rows: Adoption, Engagement, Retention. Talked through and priori"See full answer

Rani Y. - "Design a Fundraising product Clarifying questions : Are we creating this a standalone product or creating this within Meta apps ? Global product ? Lets say global product What is fundraising ? Raising money for cause Why is it imp ? Allows individuals to see bigger changes with small contributios why now? increased social causes, creator economy, or global crises. Want to make it accessible for everyday person rather than limiting to bigger organizations Ties into Metas mission to give"See full answer

Khushbu R. - "General Approach (using Max-Heap) Use a max-heap (priority queue) of size k. For each point: Compute the distance to P. Push it into the heap. If heap size > k, remove the farthest point. The heap will contain the k closest points to P. import java.util.*; public class KClosestPoints { static class Point { int x, y; public Point(int x, int y) { this.x = x; this.y = y; } // Euclidean distance squared (no need to take square root) p"See full answer