Interview Questions

Scott S. - " A couple of years ago, we were working on a project to integrate a new third-party data feed into our existing data processing pipeline. This data feed was critical for enhancing our trading algorithms with more comprehensive market data. Given the tight timeline and high stakes, I decided to push for a rapid implementation. In my eagerness to meet the deadline, I underestimated the complexity of integrating this new data feed. I did not allocate sufficient time for thorough testing and valida"See full answer

Glados - "Clarifying questions 1/ Any other products in VC portfolio I need to be aware of - "no" 2/ Market focus? - "no" Started off by stating database marketing 1/ SQL 2/ NoSQL Data models mostly relational Database trends 1/ Vector databases 2/ Growth in cloud / fully managed databases 3/ Multi cloud is important to avoid vendor lock in Ultimately Price/performance is king Competition 1/ Large cloud providers - AWS/GCP/Azure 2/ Legacy databases - Oracle/SQL Server 3/ Niche players - Vitess, Coc"See full answer

Tiago R. - "function serialize(list) { for (let i=0; i 0xFFFF) { throw new Exception(String ${list[i]} is too long!); } const prefix = String.fromCharCode(length); list[i] = ${prefix}${list[i]}; console.log(list[i]) } return list.join(''); } function deserialize(s) { let i=0; const length = s.length; const output = []; while (i < length) { "See full answer

Rahul J. - "Clarifying questions Target customers: users who want to book flights, hotel etc. Geo: USA Form factor: web and mobile app About the company Agoda wants its users to 'see the world for less' i.e. they are targeting users who want to travel (for business or pleasure) and their key value proposition is price i.e. lowest cost hotels, flights and other services. Business model: Agoda is an online market place where vendors like airlines, hotels etc. are displayed and user can search for a"See full answer

Daniel M. - "Should be able to charge the airpod case when pluged into energy. Should be able to charge when the airpod case has battery. Should be able to alert if the airpod case is out of battery. Should be able to sync with non-paired devices. Should be able to sync automatically with paired devices. Should be able to sync automatically with paired devices that are closer to the airpod. Should be able to switch the connection to a device answering a call. Should be able to pause during us"See full answer

Will I. - "Is it bad to get the answer a different way? Will they mark that as not knowing Bayes Theorem or just correct as it is an easier way to get the answer? The way I went is to look at what happens when the factory makes 100 light bulbs. Machine A makes 60 of which 3 are faulty, Machine B makes 40 of which 1.2 are faulty. Therefore the pool of faulty lightbulbs is 3/4.2 = 5/7 from machine A and 1.2/4.2 = 3/7 from Machine B."See full answer

Rui B. - "Clarification and Assumption In house labeling vs outsourced? labeling text, images, bounding boxes, segmentations etc? what kind of issues have we observed? Assuming that data collection and pre/post-processing is done by different team and labeling starts with receiving data and ends with sending files back to my team. "outsourced, images containing objects, 2 dozen classes of objects to label bounding boxes." 2.Goal Quality is important because downstream effect. garbage in garbage out."See full answer

Sanjana G. - " are we considering ride sharing app or also Uber Eats? If we are considering Ride sharing app Uber is successful when a Customer is safely dropped at its selected destination and Uber driver is paid for the drive. For Uber to be successful in a new city we want to track Number of completed rides per day/week Number of customers who came back to the app for another ride after first one was completed. Number of active drivers per day. Number of drivers completing at least 1 ride"See full answer

Aditya S. - "I told a story about how our team was focussed on moving a key metric i.e. NPS and to do that we build 3 top requested user feature. Post release the detractors % didn't move even though the detractors request for features shipped went down. Then I connect with users and did some analysis post which we realised that we need to pivot our focus from shipping features to enabling complete workflows for our users i.e. shipping all those feature which are used together in a feature as then only users"See full answer

Shuchi A. - "A few months ago I joined a micro-services platform engineering team as their manager, at that time my team was struggling to deliver towards an upcoming production deadline for a customer facing product. Production date had been moved 5 times already and there were about 40% of product features which were remaining to be tested and signed off to move to production . I was made responsible to deliver the release of this product within the deadline and turnaround the software delivery throughput."See full answer

Divya R. - "static int diameterOfTree(Node root) { //printTree(root); if(root==null) return 0; if(root.left==null && root.right==null) return 0; int[] dia=new int[1]; diameter=0; diameterOfTree(root, dia); diameter=Math.max(diameter, dia[0]); return diameter; } static void printTree(Node root) { if(root==null) { System.out.println(" "); return; } if(root.left==null && root.right==null) { System.out.println(root.data + " "); return; } System.out.println(root.data); printTree(root.left); printTree(root.right)"See full answer

C T. - "Mock interview 2/3/2025 Google Wallet User Needs (pain points): At physical store: understand the price tag proceed the transaction Audio cue to pick one credit card read the payment machine transaction confirmation (optional) balance hear transaction summary At home: check balance make payment send money receive money understand statement Prioritization Understand the price tag"See full answer

Marie E. - "Trying to decide on if they should include a step to upload a profile picture in the onboarding flow or not? Why does facebook have a profile picture? What value does it add? User value - Connections: having a picture on your profile, help drive friending and follows. Because users can put a face with the name. And they cna also recongize people they may not immediately know from a name (or a common name) and want to friend them. Business value - Integrity: maki"See full answer

Matthew K. - " function climbStairs(n) { // 4 iterations of Dynamic Programming solutions: // Step 1: Recursive: // if (n <= 2) return n // return climbStairs(n-1) + climbStairs(n-2) // Step 2: Top-down Memoization // const memo = {0:0, 1:1, 2:2} // function f(x) { // if (x in memo) return memo[x] // memo[x] = f(x-1) + f(x-2) // return memo[x] // } // return f(n) // Step 3: Bottom-up Tabulation // const tab = [0,1,2] // f"See full answer

Vaibhav B. - "Great question, I’ll take a moment to organize my thoughts before answering - Sure I have a few clarification questions and some assumptions - Go ahead 5 years and infinite resources, I have no constraints in terms of making technology advancements - Yes, no constraint I’ll focus on improving the lives of people and changing the ways people use Google Translate and may expand the use to different products.. not just existing interface - Cool Let's take a step back and think why people nee"See full answer

Adib M. - "(1) Discovery: Get to know the stakeholders, PM, Engg team via 1-1. Attend project status meeting where either you are introduced to the stakeholders or actually run it with the goal being to introduce yourself and that you will be catching up on the state of the project in time of the next meeting Understand the Goals of the project and its impact on team and enterprise (2) Planning: Based on current velocity/ burn-rate, estimate what % of the project would be complete at 100% resource uti"See full answer

Nikita C. - "WhatsApp is a free messaging platform, that introduces new and amazing features frequently to leverage its user data and vast user base. I assume the goal is to get revenue from the services without affecting user satisfaction. For that, I am listing a few ideas using which we can monetize WhatsApp. Whatsaap has recently introduced channels, for verified channels WhatsApp can start a subscription model. WhatsApp can introduce in-app ads in the stories section showing relevant ads. What"See full answer

Batman X. - "def friend_distance(friends, userA, userB): step = 0 total_neighs = set() llen = len(total_neighs) total_neighs.add(userB) while len(total_neighs)!=llen: s = set() step += 1 llen = len(total_neighs) for el in total_neighs: nes = neighbours(friends, userA, el) if userA in nes: return step for p in nes: s.add(p) for el in s: total_neighs.add(el) return -1 def neighbours(A,n1, n2): out = set() for i in range(len(A[n2])): if An2: out.add(i) return out"See full answer

Sireesha R. - "Use Dutch National Flag Algorithm to solve the problem"See full answer