Interview Questions

Saisandeep M. - "Explained the charts with using Scatter Plot with Size and Color Encoding X-axis: Ride duration (in minutes). Y-axis: Total fare (in dollars). Point size: Encodes the star rating (e.g., larger points for higher ratings). Point color: Indicates whether the rating is favorable (green) or unfavorable (red). Heatmap for Correlation Analysis Why: Heatmaps are ideal for quickly identifying patterns and correlations between variables. How: Create a heatmap matrix where rows represent ride durat"See full answer

Vipan K. - "As a postgraduate student of computer science, one of my weaknesses might be that I sometimes focus too much on theoretical concepts, which can lead to delays in practical implementation. I also find that while I’m strong in certain areas like algorithms and data structures, I need to spend more time refining my skills in newer technologies or languages that aren't part of the core curriculum. Additionally, balancing research, coursework, and any side projects can be challenging, occasionally le"See full answer

Vijay P. - "Explained in STAR format one of the project situation where I had originally approved problem with different design which was correct approach that time. But as the project progressed that approach needed revision. Emphasized on facts why original approach was taken with points. Also focused tail end of discussion on learnings out of situation and how you end up deploying better solution from that learning."See full answer

Dhruv M. - "During my internship at Quantiva Solutions, I was leading a small team of fellow interns on a data visualization project. I was very focused on meeting the deadline and often pushed the team to keep moving quickly through tasks. About midway through the project, one of my teammates pulled me aside and said that while they appreciated my organization, they felt I wasn’t giving enough space for others to contribute ideas and that it made the collaboration feel more task-driven than team-oriented."See full answer

Ross B. - "I most want to communicate a few principals of conflict resolution that I believe were integral in this situation, which are mutual respect, a results orientation, an unwavering focus on the user. To that end, here’s how I’d like to structure this answer: First, I’ll tell you about the project we were working on, to provide some background for you. Second, I’ll describe the disagreement. Third, I’ll describe how we arrived at a solution, and finally, I’ll discuss how those 3 conflict resolution"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

Anonymous Newt - "CQ: Goal - connect two large continents, reduce the distance Is it a motorable bridge -? Any specific use case on mind? Summarise: come up with the use cases of the bridge Google’s mission -> organise world’s information and make them more accessible and useful A bridge that way is a great way to reduce the distance between two large separate continents. This bridge can help spread information faster Possible Use cases of the bridge: Transportation of physical goods: Since road tran"See full answer

Stanislav I. - "First, take a BIG short position in Tesla stocks!"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

Suhasan C. - "I'm going to structure my answer like this so it is easy for both of us to follow up and grasp them easily. Let's first clear out some of the grey areas and make them black and white. Also, decide what are in-scope and out of scope. Second, let's understand what is our goal for improvement - is it the customer experience or any specific feature in mind? for a group of users? Third, I will brainstorm what are the pain points for user personas and solutions to improve them. Fourth, I will priorit"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

Takashi M. - "First of all, I’d like to identify what is Google’s business model and Google’s presence in the emerging market. I can categorize 3 main buckets. Consumer, developer, enterprise business. Google mainly offers a free Android OS platform and several services; such as Gmail, Google Map, Youtube, and Search engine for consumers business. The consumer can use those free services in exchange for providing data. That is the main hook for the ads revenues. For the developer’s segment, Google provides"See full answer

Kshitij A. - "The question is bit vague (I guess deliberately) so I believe firstly we shall ask questions and resolve ambiguity. Some initial questions could be : 1) Is this one time activity or something that should be done on continuous basis. If continuous basis then at what frequency. 2) How much staleness is acceptable in SYSTEM Y data 3) Are there any limitation in SYSTEM Y and is it fair to assume that we would need some kind of transformation to bring data into SYSTEM Y schema. 4) What kind of vol"See full answer

Sohum S. - "I would assume that this is similar to an intervals question. Meeting Rooms II (https://www.lintcode.com/problem/919/?fromId=203&_from=collection) on Leetcode seems like the closest comparison, it's a premium question so I linked Lintcode. I'm assuming that we also need to just return the minimum number of cars used. You need to sort for the most optimal solution, so you're constrained by an O(nlogn) time complexity. So any sorting solution could work (using a heap, sorting the array input arra"See full answer

Imju B. - "Wondering what is the difference between OKR based and Roadmap based. I feel it is based on the time horizon."See full answer

Ushita S. - "The back-of-the-envelope calculation is very well done!"See full answer