Interview Questions

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

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

Michael B. - "Problem: Given an input string txt consisting of alphanumeric characters and the parentheses characters '(' & ')', write a function which removes the minimum number of characters to return a version of the string with properly balanced parenthesis. Answer: You can do this with a counter. Psuedo-Python Start with counter = 0 output = [] Iterate through the string, every time you encounter a '(', increment the counter. Add the character to the output. If you encounter a ')', decrement the coun"See full answer

Harish K. - "Swiggy could implement to increase the average order value (AOV) on its platform: 1. Smart Recommendations and Upselling: Personalized suggestions: Leverage data to recommend items based on past orders, popular choices, and trending items in the user's area. Upselling prompts: When a user adds an item to their cart, suggest related or higher-value items (e.g., "Would you like to add a side of fries with that?" or "Upgrade to a large for just ₹X more"). Bundle deals: Offer c"See full answer

Soumya S. - "In 2019, I was given a very important problem to solve. In a team of 3 we had to build a mobility assist device. The customer segment we would go for was something we could decide. The project was very close to me as I had lost someone I loved because of cancer and I saw how reduced mobility was a huge pain point in not being able to do physical activities. My team could only think of elderly people as the main target market. As the Head of Product what I did was: 1) I helped them dive even d"See full answer

Michael B. - "Write a function which Caesar ciphers all the strings so that the first character is "a". Use ascii code points and the modulo operator to do this. Use this function to create a hashmap between each string and the CC-a string. Then go through each key:value pair in the hashmap, and use the CC-a ciphered value as the key in a new defaultdict(list), adding the original string to the value field in the output."See full answer

Anonymous Sparrow - "Before I jump in, will this product be part of the FB ecosystem? If it's up to me, although I think wine has a great social element and is shared when people are connecting...I would hesitate to create a product that promotes alcohol consumption on FB. So I would choose to have it live outside of FB. With that, let me start by making sure I understand the product correctly, talk about some metrics we can target. Then we can think through who our users are and outline some of their needs. Final"See full answer

Ankita S. - "let's say I'm working on a social media platform and considering implementing a new feature: "Reactions" to posts, similar to Facebook's reactions (like, love, haha, wow, sad, angry). Here's how I would conduct an A/B test for this feature: Define goals and Identify the feature: Goal is to increase user engagement and provide more nuanced ways for users to express their reactions to posts.The feature I want to test is the introduction of "Reactions" buttons alongside the traditional "Lik"See full answer

Anonymous Unicorn - "naive solution: def countprefixpairs(words): n = len(words) count = 0 for i in range(n): for j in range(i + 1, n): if words[i].startswith(words[j]) or words[j].startswith(words[i]): count += 1 return count using tries for when the list of words is very long: from collections import Counter class TrieNode: def init(self): self.children = {} self.count = 0 # To count the number of words ending at this node"See full answer

An D. - "Understanding the Basics Choosing Learning Resources Practicing and Applying Knowledge Seeking Help and Staying Updated Leveraging Modern Tools"See full answer

Dev S. - "My Favorite Product is Grammarly unlike Microsoft spell checker, it helps correct the mistakes as I compose my sentences. It follows rules, patterns, machine learning, deep learning, and natural language processing (NLP) to improve users’ writing skills and improve their confidence in writing skills. I would evaluate this product by the following design principles. Usefulness Understandability Innovative It’s honest I can expand this criterion and explain how I evaluate prod"See full answer

Apurv W. - "Clarify: Understanding of wallets an UPI What is failure rate here? - transaction failed Is it real time failure or successful on front end but failed in backend - assuming it is front end, real time failure. Have other related products/features experienced the same change? Diagnose (impact, significance) Failure rate = assuming it is significantly increasing Impact = customer lifetime value, # of bookings, Avg order value and satisfaction too. Users & value Seller = Revenue "See full answer

Avon T. - "Initialize left pointer: Set a left pointer left to 0. Iterate through the array: Iterate through the array from left to right. If the current element is not 0, swap it with the element at the left pointer and increment left. Time complexity: O(n). The loop iterates through the entire array once, making it linear time. Space complexity: O(1). The algorithm operates in-place, modifying the input array directly without using additional data structures. "See full answer

rocketscientist - "I was the PM of a beta product which started to be utilized by a range of users. Although I maintained and communicated a road map that outlined upcoming features at a high level, it wasn't very clear to the users whether certain features were going to be improved, certain low level features were going to be added, or whether these were on our radar at all. We don't have a large team to support call desk or a marketing team. I was having multiple, one of conversations with different users and c"See full answer

Christopher K. - "Clarifying/Requirements House hunting is something I'm familiar with as someone who has rented, owned, and invested in the past. When I was looking for a place to live, the stage of where my life plays an important factor in determining how I look for a place. Before I start, I would like to ask some clarifying questions for better context and understanding. Did FB release any app related to house hunting - No, this would be a completely new feature. Will this be a stand-alone or"See full answer

Shasleen I. - "Clarifying Questions Who are we? Traditional elevator company or a new age tech startup Assumption: New age tech based elevator company Any constraints: Budget, etc. Assumption: No What kind of a skyscraper building: Assumption: Commercial. Includes office spaces as well as others Any particular goal with respect to building this elevator? Design best in class elevator providing the best user experience for passengers User needs - Users have the following needs when"See full answer

Saket S. - "I will look at the % of overspend. If we are within 10%, I would not worry about it too much as most budgets factor in 10% contingency. If Budget has exceeded 10% Threshold, I will use the following approach: Deep dive on current status: Understand % work completed/accepted Analyse Schedule/Time progress Understand Project Priority: P1/P2/P3 Resourcing: Internal/External Complexity: Technical design (Number of Applications involved/ Number of Interfaces to be build e"See full answer