Interview Questions

Sue G. - "Race Condition i,e multiple threads modifying simultaneously can lead to data inconsistency Operations like putIfAbsent() or computeIfAbsent() are not atomoic i.e duplicate entries or missing updates when multiple threads perform operations Data Corruption : during resizing of a hashmap by a thread, if another thread is accessing the same data , buckets can get corrupted, leading to a loss of data"See full answer

Saurabh K. - "P(A) = 0.6 P(B) = 0.4 P(D|A) = 0.05 P(D|B) = 0.03 Question asks to solve for P(A|D) P(A|D) = (P(D|A) x P(A))/P(D) = (0.05 x 0.6)/(P(D|A) x P(A) + P(D|B) x P(B)) = (0.05 x 0.6)/(0.05 x 0.6+0.03 x 0.4) = 30/42 = 5/7 = 0.714 Notice above that P(D) = P(D|A) x P(A) + P(D|B) x P (B)"See full answer

Gunjan B. - "Google flights doesn't have a booking experience. Is this even a real question?"See full answer

Hamzeh H. - "S – Situation: In a university project, my team was building a collaborative code editor. As part of the functionality, we needed a login system so users could securely access their sessions and collaborate in real time. T – Task: I was responsible for implementing the authentication system. Initially, I planned to build the entire login system from scratch, including user management, password storage, and session handling. But as the deadline approached, I realized that implementing thi"See full answer

Anonymous Dingo - "Here's some thought on what I'll be doing in this situation: Identify the root cause (I'll try to assess WHY the engineers don't action these tickets). In order to identify the potential reasons, I'd have 1:1s with team members, observe participation and engagement in backlog grooming sessions and check in with leads and my peers. Lack of clarity on requirements or acceptance criteria. Skill gaps. Dependency on other teams or missing prerequisites. Team capaci"See full answer

Geetesh T. - "Situation: While in the middle of a migration project, which required rewrite of services of my product into a cloud infra., we needed to configure our rules management services onto cloud as per legacy platform. The data extract of all the rules from legacy platform in a csv file needed heavy formatting to be usable for configuration of the new service. My entire engineering capacity was allocated on other prioritized ongoing feature migration and I had no bandwidth left in the ongoing spri"See full answer

Soutrik M. - "Applying the STAR method to explain a time when I had to teach myself certain skills to meet project demands. Situation : I was working for a medical devices company that didn't have CI-CD setup for its embedded software Task : Build the entire CI-CD pipeline from scratch using the tools available within a month Action : I had to learn Docker and other basic DevOps technologies to build this Result : We were able to reduce build time by 70% and create a process for package manage"See full answer

Noe L. - "First, I’d want to clarify what’s driving the lack of adoption. I’d ask:What does “unclear roadmap” mean? Is this an internal issue where we’re not addressing customer pain points, or is it a matter of customers not understanding how to use the product? Is this feedback coming from all enterprise customers across verticals, or is it isolated to a specific group? How long has this been going on? Has it been over a quarter? Assuming this is a widespread issue impacting all customers"See full answer

Debajyoti B. - "Clarifications: Which aspect of birthday are we thinking about designing a product for? Birthday reminder, birthday planning, event management or birthday wishing?- People are generally reminded of their birthdays by their friends/family, social media, their own self awareness, so its not a critical problem to solve Social apps like FB have birthday wishing features for the larger audience & for wishing friends/family, people would generally call or wish in person Manag"See full answer

Anonymous Mollusk - "My weakness was stage fright and talking in front of a large audience. This TPM role does offer me an opportunity to do both but not at the scale at which impacts my day to day role. Also over many years I have taken remedial action e.g. joined a Toast Masters club to overcome my weakness."See full answer

Ani T. - "User Need Not Being Met by the Market: Instant, Seamless Cross-Border Refunds Identifying the Gap- One major gap in the digital payments industry is the lack of instant, seamless cross-border refunds for consumers. Currently, international refunds take days or even weeks due to exchange rate fluctuations, banking delays, and compliance checks. This creates frustration for users, especially in e-commerce, where consumers expect instant refunds like they receive for domestic transactions. Pain Poi"See full answer

Bala G. - "SELECT s.Sale_Date, SUM(si.Quantity * si.SalePrice) AS TotalRevenue FROM Sales s JOIN SaleItems si ON s.SaleID = si.Sale_ID GROUP BY s.Sale_Date ORDER BY s.Sale_Date; "See full answer

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

Sugrim S. - "after completing my project, I asked my manager for feedback on my performance. My aim was to identify areas for improvement, and learn more about new technologies which are in the"See full answer