Interview Questions

Hashmina H. - "Clarifying Questions: Do we want to target a particular geography or location or should it be done globally? Assume global Is there any particular platform and device we are targeting (App/web) or should it be cross platforms? Cross platforms Can I think about it as Product led solutions or do you want to consider marketing alternatives as well? Let's start with Product led solutions & later if time permits, we can touch on the marketing side as well Are there any constra"See full answer

Ankit M. - "Clarifying questions: When we talk about a 'meditation app', are we mainly focusing on audio content? And are we thinking of this under a big brand or are we a fresh startup? Also, is our main target the US? And, are we designing mainly for individual use, or are we thinking about larger settings like schools? Interviewer: It's a startup. We're aiming for individual users, mainly in the US, and yes, an audio-based format. Summary till now: In today's digital age there's an increasi"See full answer

Zakery K. - "Conflict is a GREAT opportunity to really demonstrate that you care about someone and, through effective conflict resolution, build stronger authentic relationships with the people you work with. When faced with conflict, I prioritize understanding all perspectives involved. I start by actively listening to the other parties: asking clarifying questions to pinpoint the source of the conflict, reflecting back what I'm hearing to make sure I understand them correctly, and ultimately identify"See full answer

Wayne W. - "def hasgoodsubarray(nums, k): if not nums: return False prefix = 0 table = set([0]) for i in range(len(nums)): prefix += nums[i] if prefix % k in table: return True table.add(prefix % k) return False `"See full answer

Sameer S. - "I: Design a banking app for kids S: Sure, let me start with clarifying questions. What is our goal for building this app? I: To create financial literacy early in childhood and also increase our customer base. S: Sure. Are we going to launch it globally or in any specific geography or demography? I: Globally. S: Sure, Any resource or time constraints to keep in mind because I need to prioritize the features on the roadmap based on that? Also, are we launching it on iOS or Android? I: No resource"See full answer

Ramendra S. - "Step 1: Clarifying the Problem Scope We will focus on designing the leaderboard for Dream11 with these assumptions: Registered teams: 100,000 users are actively participating and ranked. Real-time updates: Leaderboard updates frequently as players accumulate points based on live sports events. Multiple leagues: Each user can participate in different leagues, so we will need to maintain a separate leaderboard for each league. Query efficiency: Users frequently"See full answer

Dinesh G. - "As Applications are sending huge of the data, How we can optimize the process of sending the data?"See full answer

Sahil A. - "Clarify: Zoom for business - we are referring to Zoom meetings for enterprise customers Are there any specific features or goals we want to track. Assumption - We are at overall zoom business for enterprise customers Is there any particular geography or demographics we want to look at - Assumption - we are looking at across the globe Goals: Zoom allows users to conduct meetings internally and externally with folks across the organization. Enterprise customers access Zoom with their cor"See full answer

Manohar A. - "Some follow-up questions to correctly understand what "improve" means here? Is it to have: more riders, better user experience, monetization, more/new market penetration. Let's assume interviewer requested to choose whatever I prefer. I choose better user experience which might trigger other areas of improvement as well. Some more probing questions: To I need to consider USA only or any other country/region or global? Can I consider only popular on demand taxi service for this question? One wa"See full answer

P R. - "First I'd like to clarify the definition of reactions and confirm that it's same as what exists today. Definition: Reactions provides users the ability to provide richer expression beyond 'like' Business goal: Since this is a mature product, the business goal is to improve user engagement Product goal: Bring people closer together by letting people provide more accurate sentiment to the community based on the content Personas: 1. Content creator 2. user using reactions **Li"See full answer

Daniel P. - "Okay, so I understand the question: "how does Google Maps compute estimated time of arrival"... There are a couple scenarios when ETA is calculated: planning a future journey, planning current journey. Can we assume scope to the current journey? The learnings will likely be transferable. User inputs to ETA include origin, destination, and route chosen. Let's assume first that the user has chosen an origin, destination, and a route chosen. We can come back to these assumptions later. The way I'"See full answer

Anni P. - "I firstly discuss the brute force approach in O(n^2) time complexity , than i moved to O(nlogn) tine complexity than i discussed the O(n) time complexity and O(n) space complexity . But interviewer want more optimised solution , in O(n) time complexity without using extra space , The solution wants O(1) space complexity i have to do changes in same array without using any space . This method is something like i have to place positive values to its original position by swapping and rest negativ"See full answer

Ashish G. - "Rate Limiter is to limit the number of request from a particular IP Address. Rate limiter will block the IP address to reduce the load on server. It should be highly available and handle concurrent requests. Blocked IP addresses should be kept in a pool which is present in shared cache. We need to keep threshold value after it reaches threshold value it should start blocking IP address. All these ip address to be kept in No SQL DB. Batch will run that will clear the cache and delete all the bloc"See full answer

Tara J. - "I would like to speak loud to narrow the scope of this question so I can be effective in identifying a solution to the problem on hand. Hope that is OK. You mentioned, “Re-design the airport experience”. Is there a goal for this re-design exercise? Some top goals that come to my mind are the following. Please guide me so I can set it and we can proceed from there. “Increase the number of passengers who travel to and from this airport” “Improve customer satisfaction” **“Get in"See full answer

Will P. - "There are several categories of ads that users may encounter on YouTube content pages, depending on the user's device and browser. To narrow the scope of my answer, I am going to assume this is a non-skippable, midroll video ad that is 15 seconds long, and shown to a non-premium desktop user in the US. The next step is to clarify the motivations behind the proposed feature. Are non-relevant ads harmful to the overall user satisfaction? Do users engage more with relevant ads? Are advertisers mak"See full answer

Gabe M. - "My stab at this (feedback welcome): Total distance for last car 500 meters: Assuming mostly standard cars, average car length + gap = 5 meters. Acceleration time total 505 seconds: first car reacts slowest, accelerate in 10 seconds. Every other car needs 5 seconds (can see ahead). Takes 90 seconds to cover 500m: to cover 500m that means 90 seconds (20kph = 10km in 30min = 1km in 3min = 500m in 1.5m) A bit under 10 minutes = 90s + 505s. Probably a bit less as last car"See full answer

Pramod V. - "Referring to https://www.forbes.com/sites/forbesbusinesscouncil/2022/03/23/15-strategies-for-balancing-competing-stakeholder-priorities/?sh=7c82aa68262f Understand the conflicting priorities and align it with the goal/ objectives and the company mission. Start with the Least Common Denominator between the conflicting priorities to come to a commonality and start from there to objectively approach the next imp priority Always keep communication on and be transparent with 'equality' an"See full answer

Pushkar G. - "Assumptions - Multiple reader/writer threads issue set() [with transaction] and get() operations concurrently All data can fit into memory. Requirements - Good performance (ex. less lock contention) Optimize memory footprint (ex. don't store stale entries in memory) Naive Approach - Wrap a standard hashmap/dictionary with reader-writer lock. We can also shard the map to reduce lock contention (ex. 32 segments for 32 core cpu) Allocate local buffer to a writer when a transacti"See full answer