Meta Interview Questions

Sandeep Y. - "Functional requirement's: partial search while searching for users, products any keywords in the search. additional keywords in the filter Black listed words in the search. Non functional requirements: low latency, search through 2 Billion records recent search should be cached. Design: high reads, we should have caching enabled over the primary db storages. caching cluster can be added when the search load increases. read ahead. - check in cache (periodic cache refresh), lfu, lru "See full answer

Anonymous Sparrow - " To start, I'm going to make sure I understand the product correctly and also define what specific business metric we're trying to improve. Second, I will focus on defining the target user for which we want to improve the product and brainstorm what additional user problems we could solve. And third, I will generate solutions for these problems, prioritize them, and make a recommendation." First I want to understand if this product will aim to help me find the pet I want, or help me discover wh"See full answer

Anonymous Mongoose - "Given a Binary Tree, the task is to find its vertical traversal starting from the leftmost level to the rightmost level. If multiple nodes pass through a vertical line, they should be printed as they appear in the level order traversal of the tree. The idea is to traverse the tree using dfs and maintain a hashmap to store nodes at each horizontal distance (HD) from the root. Starting with an HD of 0 at the root, the HD is decremented for left children and incremented for right children. As we"See full answer

Arturo Z. - "function insertItem(heap, item) { heap.push(item); if (heap.length > 0) { let current = heap.length - 1; while(current > 0 && heap[Math.floor(current/2)] > heap[current]) { [heap[Math.floor(current/2)], heap[current]] = [heap[current], heap[Math.floor(current/2)]]; current = Math.floor(current/2); } } } function extractMin(heap) { let smallest = heap[0]; let len = heap.length; if (len > 2) { heap[0] = heap[len - 1]; heap.splice(len - 1); "See full answer

R K. - "Assumptions and clarifying Questions 1 - This will be a feature within the existing FB App and would utilize existing features - YES 2 - What is the goal of this new feature - User acquisition & increase engagement 3 -Is this feature around playing sports or watching sports - Playing 4 - Any specific geography to target - US 5 - Both mobile and desktop platforms - YES 6 - Any specific demographic to target - You choose 7 - Any constraints around go to market - 6 months 8 - Any other"See full answer

Guilherme F. - "A much better solution than the one in the article, below: It looks like the ones writing articles here in Javascript do not understand the time/space complexity of javascript methods. shift, splice, sort, etc... In the solution article you have a shift and a sort being done inside a while, that is, the multiplication of Ns. My solution, below, iterates through the list once and then sorts it, separately. It´s O(N+Log(N)) class ListNode { constructor(val = 0, next = null) { th"See full answer

Amparo L. - "I'm currently a School Bus Monitor at First Student, I make sure that the students on the bus are seated down, making sure they are safe during the bus ride. Sometimes depending on the day they may need me to help do a wheelchair so I sometimes help the driver out with making sure the wheelchair is safely secure, hooking up the 4 hooks on the wheelchair, putting the lap belt on the student and also making sure the student feels comfortable during the bus ride. After we finished dropping off our"See full answer

Shubham A. - "I was working in a Silicon Validation group and the roadmap for all validation strategy was defined, But the problem with that was it was as with the roadmap given, the quality would have compromised and hence, I raised a concern regarding the quality of the product. Initially the team members were not convinced, I borrowed a week's time with them and scheduled another meeting and brought up all the data(high level) which we should be covering during the validation timeframe. Also added tentati"See full answer

nikilukman - "Clarifying questions #1: What does "investment" mean? #2: Verification badge already exists or not? #3: A verification badge is a special symbol (like a checkmark), usually displayed next to the username to identify/verify that an account with this badge is an authentic public figure or brand. It is NOT a way for Instagram to endorse the "importance" of verified accounts. Is this accurate? Anything else I should know of as a PM regarding the definition? **Assumption: Verification badge alre"See full answer

Himanshu V. - "Video engagement: time spent, frequency, recency Video completion rate Time spent on Facebook vs Time spent on watching FB videos Video recommendation: Switching from 1st to 2nd and so on "See full answer

Hustle - "What does Netflix do? Netflix is a global entertainment company that produces and streams movies, TV shows, and documentaries. In recent years, it has also expanded into games and short-form content to increase engagement and strengthen its ecosystem. Why introduce podcasts? Netflix’s mission is to entertain the world. Podcasts offer a new, low-effort way for users to engage with Netflix’s stories and creators, especially during non-screen moments like commuting, exercising, or cooking. In"See full answer

Paras K. - "microservices is a part of an application where we differentiate the code/things into small parts that makes our application more independent like if one part is not working then that will not impact to our whole application"See full answer

Michael B. - "Problem: Given an input string txt consisting of alphanumeric characters and the parentheses characters '(' & ')', write a function which removes the minimum number of characters to return a version of the string with properly balanced parenthesis. Answer: You can do this with a counter. Psuedo-Python Start with counter = 0 output = [] Iterate through the string, every time you encounter a '(', increment the counter. Add the character to the output. If you encounter a ')', decrement the coun"See full answer

KTfortheLoss - "Me: First let's clarify the user journey of the Facebook dating app Interviewer: Me: Do we know how success is defined in this context? Interviewer: Please figure that out yourself Me: Ok let's first discuss the mission of Facebook and how Facebook dating app is part of that. Then lets brainstorm what the goals would be for Facebook Dating. That help us determine the user behavior and metrics we can create. Finally let's fi"See full answer

Anonymous Mastodon - "WHAT IS IMPORTANT TO CUSTOMER VALUE TO THE CUSTOMER IMPACT ON THE CUSTOMER PRIORITIZE BASED ON THAT the sales team wants Specific changes to customer - Value NPV etc Client services want automation - Customer priority "See full answer