Interview Questions

Rick E. - " O(n) - characters in the string O(n) - stack def identify_adjacent(s: str, k: int) -> str: stack = [] n = len(s) for ch in s: if stack: topch, topcnt = stack[-1] if top_ch == ch: top_cnt += 1 stack[-1] = (ch, top_cnt) else: top_cnt = 1 stack.append((ch,1)) if top_cnt == k: stack.pop() else: stack.append"See full answer

Vivek S. - "This question can be answered in two different ways: a. Strategic b. Product Sense Since , the question is which product you would work upon , it is likely a product strategy question , where interviewer is trying to find about how would you go about selecting the product to solve for. Another approach would be to clarify on the two approaches from the Interviewer. Can ask your hierarchy in PM role [ APM/PM/ Sr. PM / GPM ] and then approach this. Candidate : Do you have any specific goal"See full answer

Istvan K. - "Thanks you for sharing insight about the app which I would liek to summarize in 2 structures: functional 2 technical requirement. Requirements: Functional requirement: Able to share messages, siles , and other content like photos, sounds Create groups for conversaion Size: 500 million users, 50m DAU -> 500M active chats daily Files not stored in the system but is can be shared.. Integaration with other APPs Technical requirement: Availability: Can you help me to understand the a"See full answer

Debajyoti B. - "First Clarify whether this is for FB general account or business account Why is removing the profile pic being considered in the first place? Declining conversion rates? TTV(signup to post creation) is perceived as too high wrt competing apps? Meta is considering a single signup for all its apps(FB, Insta, WA) & is looking to optimize the same? Do we have any supporting data for this? user feedback? Next Look at current FB signup flow(assuming these are the steps since its be"See full answer

Ketshi B. - "Clarifying questions When we say signals do you mean just features that are fed into the ML model that decide how the content should be ranked? Is newsfeed the front page of fb app. Can you expand what you mean by relevance? User journey User enters blue app.. Newsfeed is the first thing they see. User either continues on newsfeed ie scrolls through it or moves to a separate part of fb As they are scrolling they may see contents from friends, creators and ads, or other pages that they have been"See full answer

Anonymous Sparrow - "Clarifying question: why would Google consider sunsetting Gmail? Is there an opportunity to make a case against sunsetting or has the executive decision already been made and we're truly looking for a flawless sunset? If decision has already been made - why? Is this a global decision or country-specific? If the answer from interviewer is that the decision is open to debate, pivot case toward identifying the problem that causes leadership to even consider sunset. Then analyze and propose ways to"See full answer

Anonymous Partridge - "We will have to use a second more powerful LLM Model to validate the answers. LLM as a judge"See full answer

Michael A. - "First, I want to get a better sense of what is a DAU. What is considered “Active”? User sending message, reading message, opening app? All of the them, any activity within the Messenger App Second, it’s important to know the context of the change. What timeframe was this over? Let’s assume this was over the past 30 days. Ok, a follow up to this would be to check if this is a seasonal pattern? For example, there could be a correlation to Messenger usage and school starting. **This"See full answer

Jacob S. - "Cloud computing is like going out to a restaurant instead of cooking dinner at home. When you cook at home, you have to do everything yourself. You need to use your own plates, pots, and pans. You have to know how many people are coming over and buy the right amount of ingredients. If more people join for dinner than you expected, you'll run out of food! But if fewer people show up, then you'll have leftovers that go to waste. And on top of it all, you have to do all the cooking, set up, and cl"See full answer

Prateek G. - "I will first start with listing down the GOALS of Google Sheets as a product GOALS: Enable better collaboration amongst employees in an organisation Make edits parallel Share with co-workers so that the team can work seamlessly Increase user engagement, activity and make more users aware about the functionality and usefulness of Google Sheets Next, i will try and list the broader ACTIONS a user might take ACTIONS: Create a new Google Sheet Share with co-workers M"See full answer

BriskD - "I watched a couple of videos like this, one of them by Exponent staff (I think). It was disappointing that the architecture diagram and the walkthrough was a general layered architecture that you can apply to any backend system. I was wondering if there are videos that can be considered a reference material to watch, learn and improve on the tech (sys design) skills, and not so much about the soft skills."See full answer

Pavani B. - "Request inputs/feedback on my response below with regards to this question and ways to improve and if it looks apt for this question. As a TPM at xxx, I was responsible for delivering a feature that would provide prescription (medications) alternatives to users in the Prescription Shopping Consumer Experience App. The project had a tight deadline as it was something that our account management team promised to a client who wanted it for their employees. My goal was to ensure smooth development"See full answer

R S. - "One of the biggest risks I have taken was in a recent product, where we developed a new feature and released the feature externally without QA sign-off. Feature - Interactive Travel Itinerary Maps We had about ten days from the time we decided to include this new feature in the external launch. Usually, the biggest chunk of time in each release cycle was the sign-off from an external QA team. We fast-tracked the dev effort and completed the development of the feature in five days. Unfortunately,"See full answer

Shashank P. - "Framework"See full answer

Sam - "Disagreement --> persistent ---> more data insights ---> positive relationship ---> mentor/trust"See full answer

Jay C. - "How would you monetize messenger? Clarifying Questions Is this messenger app or web? INTERVIEWER: Assume both are a possibility, but feel free to pick one Is there a larger facebook goal or metric we are optimizing for? INTERVIEWER: Monetization speaks to revenue so assume goal is to increase revenue for Facebook as a whole Does this include messenger Rooms or should we stick to the traditional FB messenger? INTERVIEWER: _Messenger rooms is a great call out, but let's stick"See full answer

P K. - "Assuming this is meant to be a standalone product. Its a standalone app. Goal: Simplify the shopping experience in store for a user. Success would be defined in terms of app usage as a proxy for user satisfaction. I want to think about the a given user segment, their pain points, ways to improve their pain and a way to evaluate those solutions. Broadly user personas associated with grocery shopping are - stores and customers. For the purpose of this interview I want to focus on customer se"See full answer

Alice S. - "Clarify understanding of the problem space. What does success look like? How is it measured? Platform specific? Market specific? Time period? Business goals? Then perform a funnel analysis to understand user journey and look for problems or opportunities. Choose a user segment to focus on. Identify different user segments and prioritise one. Summarise the goal of the user and the friction point. Brainstorm solutions. Come up with a number of rough solutions. Balance the business n"See full answer