Meta Interview Questions

Aymen D. - "It would have been more interesting to focus on the system design rather than the Trie DS, Interviewee could have just mentioned the Trie and passed to things more important. Interviewee should have focused on the factors on which he wants to scale the API servers, popularity of the query parts ? region may be ? A hash of many factors ? Caches should have definitely be discussed, Cache eviction policies, Cache invalidation managements... Interviewee should have mentioned which kind of API pro"See full answer

Murat S. - "public class Solution { public string MinRemoveToMakeValid(string s) { var dict = new Dictionary(); dict.Add('(', 0); dict.Add(')', 0); StringBuilder result = new StringBuilder(); for (int i = 0; i = dict[')']+1) { result.Append(c); dict[c]++; } } else result.Append(c); } StringBuilder answer = new StringBuilder(); dict.Clear(); dict.Add('(', 0); dict.Add(')', 0); for ("See full answer

BePostive - "· Listen both sides and without any bias. Support or focus on the problem rather than person. Take necessary steps in case there is middle ground its well and good if both parties agree. If not be honest and support the person who is correct. Ultimate goal is to be useful for overall project and company rather individual satisfaction. The approach should be fit into overall team goal."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

Kartik D. - "Clarifying Questions: What age range are we looking at between 13-19? Any specific range we need to target? - Assume all teens Any demography we would target? - Worldwide Do they have access to phones/laptops or do we need to build an offline product? - Assume they have access to phones and laptops Are there any constraints around privacy or content moderation? - Yes What platform (Facebook core, Messenger, or another product) is this for? - Assume faceb"See full answer

Hans - "Situation: Was given negative feedback about an aspect of my communications. The person said it made them worried because of the brevity and the format of some messages. (Their worry was that a longer negative message was coming) Task(s): Reflected on feedback about my communication style. Acknowledged the point. Assumed best intentions on the part of the person giving the feedback Saw things from the other person's point of view Action(s): In private - Apologised to the person wh"See full answer

John H. - "All products and services have to sell. I would create measurements on how much time, labor, and funds went into a project and how much value it brings back to customers and company."See full answer

Raoul S. - "Total number of successful conversations (Weekly). Success measured by sharing AI output or success indicators (e.g. Like)"See full answer

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

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

Faraz A. - "Scoped out problem constraints - how much data to download, how many computers, and how much time, how you can be detected (decentralized load). Designed a web crawler."See full answer

Irene C. - "Of course! Let me outline a general approach and ask questions along the way to see if any one path makes more sense to follow. On my general approach: I think it's important to start with a strategic goal or purpose the museum is trying to accomplish with this product. That way we have a north star. From there I'll identify a couple user types we could solve for. Once aligned, I can drill down to potential pain points and solutions of different magnitude. How does that agenda sound? For our"See full answer

Usman B. - "System Components Data Collection Layer Posts with hashtags are asynchronously sent to Kafka topics Each message contains: hashtag, timestamp, userid, postid Multiple Kafka partitions ensure scalability and fault tolerance Processing Layer Apache Flink processes streams in real-time Implements sliding window aggregation (1hr, 24hr, 7d windows) Calculates topic popularity using weighted metrics: Post count User engagement (likes, comments) Unique user"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

Pratik H. - "Clarify- 1) How much time do we have to do this?- 2 years 2) Is there a goal for this product?- We are looking toward engagement towards the Olympics 3) Are we building this for a global auidience or just the US- Up to you 4) Should I keep Meta's mission in mind here? Not necessarily...thinking through the Olympic committee lens Lets understand the Olympics. Its the games that are hosted once every 4 years. Its a global event that hosts many different athletes from various countries. There a"See full answer

Anjali P. - "Question and video tagged not same. "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

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