Interview Questions

叶 路. - "from collections import deque def updateword(words, startword, end_word): if end_word not in words: return None # Early exit if end_word is not in the dictionary queue = deque([(start_word, 0)]) # (word, steps) visited = set([start_word]) # Keep track of visited words while queue: word, steps = queue.popleft() if word == end_word: return steps # Found the target word, return steps for i in range(len(word)): "See full answer

Simran S. - "I recently led the development and implementation of a data analytics platform tailored for credit unions and mortgage companies, which was suffering from fragmented systems, inconsistent data fields across LOS platforms, and outdated reporting practices. Here's how I managed the full lifecycle: ✅ Initiation / Discovery Conducted executive interviews across five financial institutions to understand reporting and visibility gaps. Shadowed loan officers and underwriters"See full answer

Adam L. - "Discussed: Requirements of the system: latency language modality (assume keyboard typing) availability of data (assume cold start) success metric (accuracy of next word predicted?, or minimize false positives? -> accuracy to start) Data collection and processing: design ethical user experiments to collect typed out data design a simple tokenization strategy (word level encoding, character level encoding, byte-pair encodings, and discuss tradeoffs) collect data, and split"See full answer

Jagriti C. - "Clarifying questions: Will this be within the facebook blue app or will this interface/app sit separately? Volunteering can be of a few types- say for social causes or volunteering in college fest/ music fest etc. Is there a specific type of volunteering we need to consider? Let's start by revisiting company's mission statement and see if this gels with the mission- Meta's mission- To give power to build community and bring the world closer together. Volunteering is basically a way for hu"See full answer

Pranay N. - "Okay, so before we start discussing how to design this platform, I have a few questions I need details on. Clarification Questions: What do you mean by "Podcasting Platform"? Producing a platform and releasing it online takes several steps (Ideation, scripting, equipment selection, recording, editing, choosing a platform to release, etc.). Are we looking at any specific step here? - Free to Assume Am I PM at Google designing a Podcast Platform as a tool inside existing Google Pro"See full answer

P K. - "Clarifying question 1: Define Friend requests -- no. of friend requests sent in the platform through the "Add Friend" button Clarifying question 2: Time period for comparison - 10% - WoW or DoD or MoM? -- WoW Gathering context: Is the decline progressive or a one-time event? --> progressive Because the decline is progressive, ruling out technical glitches, downtime, or any other reason impacting the feature uptime. Is this decline global or regional? --> global Because the"See full answer

Julien C. - "👇 Your feedback is very much appreciated 👇 👁️ Vision Empower artists to earn a living through their art while connecting millions of fans to exceptional music experiences. A live streaming feature can humanize the digital experience, making the platform not only a place to stream recorded music but also a stage for real-time, authentic artist-fan interactions. Enhance Spotify’s artist-first narrative by providing a unique way for artists to monetize their performances. Leverage Spot"See full answer

Alvis F. - "Requirements and Goals Primary Goal:Store key-value pairs in a cache with efficient access (reads/writes). Evict items based on a certain “rank,” which might reflect popularity, frequency, or custom ranking logic. Functional Requirements:Put(key, value, rank): Insert or update a key with the given value and rank. Get(key): Retrieve the value associated with the key if it exists. Evict(): If the cache is at capacity, evict the item with the lowest rank (or according"See full answer

Kwabena B. - "Clarification Define rush hour? hours leading up to the work day 8-10am and after the work day 5-7pm Are we focused on specific types of drivers? American commuters. Private drivers going to and from work What is Google's goal? Increase engagement with google services Roadmap for interviewer: User--> Pain Points-->Solution--> Vision-->Features-->Tradeoffs User American commuters. Private drivers going to and from work Can't be too distracted even durin"See full answer

Aabid S. - "We had a huge launch on September 1st of this year where we completely redesigned our application from the grounds up and also migrated to a new platform (React.JS). This project took us 8 months and the launch was a huge deal for the team. Unfortunately the launch wasn't as smooth as we expected and despite doing multiple rounds of QA, some major issues cropped up in the core part of the app right after launch and our client was quite upset since it was disrupting their day-to-day workflow. "See full answer

Justin G. - "Observation This is an interesting question. The solution has two heads, meaning that the user must feel less guilty AND the solution must also increase revenue towards the platform. Structure The way I would approach this involves splitting the question into sequential steps. Why are users feeling guilty about using Instagram? What are some ways to make them feel less guilty? How can we monetize this? Clarification How do we define guilt? Is there a relevant subsector of"See full answer

KAI - "Answer: select fromcaller, count(DISTINCT tocallee) as num_calls from calls group by fromcaller having count(DISTINCT tocallee) >= 3 Setup: CREATE TABLE calls ( from_caller VARCHAR(20), to_callee VARCHAR(20) ); INSERT INTO calls (fromcaller, tocallee) VALUES ('Alice', 'Bob'), ('Charlie', 'Dave'), ('Alice', 'Frank'), ('Charlie', 'Heidi'), ('Charlie', 'Judy'); "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

Shubham S. - "Introduction UberSenior is a new service offered by Uber that provides safe, reliable, and convenient transportation for senior citizens. This PRD outlines the key features, functionalities, and user experience for both seniors and drivers using UberSenior. Problem Statement Existing transportation options for seniors often have limitations, including: Accessibility: Lack of vehicles equipped for mobility aids or physical limitations Technology barriers: Difficulty using smartphone"See full answer

Kat - "Clarification: What types of jobs are we targeting? Are we talking about a broad market (like Indeed) or more focused—white-collar (LinkedIn-style) or blue-collar (gigs and tasks)? Where are we launching the marketplace—U.S. or globally? Let’s assume U.S. for now. Is this a standalone product or integrated within one of Meta’s existing platforms (Facebook, WhatsApp, Instagram)? Let’s assume it’s integrated into Facebook. Overview: Meta’s Mission: Why would Meta want to launch a"See full answer

Vince S. - "1. Requirements Analysis Functional Requirements Video streaming with multiple quality levels Content browsing and search Continue watching functionality Content recommendations Non-Functional Requirements Low latency video delivery (<2s startup time) High availability (99.99% uptime) Scalability to handle millions of concurrent streams API response time < 100ms 2. Microservices Architecture Core Microservices Content Service Content metadata mana"See full answer

Jasmin R. - "Candidate: Before we go ahead I have a few clarifying questions, I’d like to ask. Interviewer: Sure. Candidate: What is the exact definition of a restaurant, are we counting coffee shops, bars, street food trolleys, homemade food shops that only has delivery to customers’ place and etc... kinds of a restaurant as well? Interviewer: let’s assume that we only mean restaurants that people can go inside, order some food and eat. Let’s not consider bars and coffee shops and so"See full answer

Ushita S. - "A clarifying question: Is this question asking about when I met a tight deadline in a project or how did I manage a project that had a tight deadline? The answer uploaded to this question is good, I would also add 'creating a critical path from overall project schedule and then making sure that none of the deliverables in the critical path are sacrificed in order to meet the tight deadline' as an action taken."See full answer

Fahad K. - "Alright, let's think through this change of moving the 'like' button to a menu under three dots on photos I'll start by aligning this change with Facebook's mission, analyze key insights, define the product mission for this update, Identify the eco-system (n-sided marketplace) Look at the effects on the eco-systems, Effects on their needs and pain points. Identify the most important actors and most important actions Come up with some metrics that we may be using to"See full answer

Karthik M. - "Assumptions & Clarifications This is a platform based on YouTube, and it can use associated Google Products like Gmail, GDocs, GSheets etc along with Youtube as a base platform. Do you have any specific goals with the platform? For instance, should this be the de facto platform for Universities K12 schools etc? Assumption is that it can be used by anyone. Let us first discuss the target users, and then arrive at appropriate goals that we can use to measure the adoption of the produc"See full answer