Interview Questions

David E. - "Its enough that I shared the question. Im not going to tell you how I answered. If you dont know how to answer, then this isn't the job or company for you. Sorry."See full answer

Ushita S. - "Video has audio disruption starting at ~7th minute, did not understand what law he was talking about. Can someone please clarify?"See full answer

Sambangi C. - "#simple solution 1.firstly find the node in the bst (O(logn) time complexity it take) 2.now removing the node consists of 3 cases: 1.if the node is leaf (no children): (keep track of parent and do) parent.left or parent.right=NULL simply remove the node () 2.if(has one child) replace the node with its child 3.if has both childs we replace the node with either inorder predesor(max of left tree)or inorder succesor and remove the node wh"See full answer

Shiva K. - "Increasing a development team's productivity by 25% requires a multifaceted approach that addresses various aspects of team dynamics, processes, and individual performance. Here's a structured approach to tackle this challenge: Assess Current Productivity Levels: Before implementing any changes, it's crucial to understand the current productivity levels of the team. This can be measured through metrics such as velocity (for Agile teams), time-to-market, defect rates, etc. **Identify Bo"See full answer

Greg L. - "From chatGPT: If Coinbase's net income is 10% less than it was last month, several actions can be considered to address the decrease in profitability. Here are some steps that might be taken: Conduct a Detailed Analysis:Investigate the reasons behind the decrease in net income. Analyze key financial metrics, transaction volumes, fee structures, market conditions, and any external factors impacting revenue. Expense Review:Review and analyze operating expenses. Identify areas where"See full answer

Kurt K. - "Why skip defining the data model? Or did I just miss it?"See full answer

Kartikeya N. - "Clarifying questions Are we referring to the credit card users of a particular card company or the overall number of users? : Overall number And we are referring to the number of unique users right, as in a person may have more than 1 card? : yes Can I assume the time setting of the question to be 2024? : Yes Thanks. Here's how I would approach this. India's total population = 1.4 Bn I know for a fact that in India only 2.5% of population pays income tax. A salaried employee who doe"See full answer

Sailaja R. - "import java.util.*; public class MostCommonWords { public static String mostCommonWords(String text) { String removeNonAlphabets = "[.,;!\"'\\(\\)]"; String sanitizedText = text.replaceAll(removeNonAlphabets," ").toLowerCase(); String[] wordsArray = sanitizedText.split("\\s+"); Map hm = new HashMap(); for (String word: wordsArray){ if (!word.isEmpty()){ hm.put(word, hm.getOrDefault(word,0)+1); } } List> entries = new ArrayList(hm.entrySet()); en"See full answer

Rjj - "I tried solving this question and here is the recorded video for the entire solution - https://youtu.be/G_LIbTp58XA Feel free to comment here or on the video for further discussion."See full answer

Chris C. - "Here are the key entities to design a relational schema for a calendar application: User - userid, email, firstname, lastname Calendar - calendarID, calendarName, caledanUserID, defaultUIView, created, updated, status Event - eventID, eventName, eventUserID, isRecurrence, startDateTime, endDatetime EventReminder - eventID, reminderMethod(email, notification), reminderTime, reminderTimeUnit(min, hr, day) Event guest - eventID, userID, isRequired, acceptStatus"See full answer

Sandhya N. - "Clarifying Questions: Discover events, purchase/resell via app Post booking: After ticket purchase to event completion Motivation for Ticketmaster: Strengths: 70-80% of ticketing business, tie ups with venues Competition: meetup Low frequency product - so every experience matters Positive wom: Reduced marketing Retention of users, organizers Users: Ecosystem Attendees: Discover, buy and attend events - {chose this} Event Organizers: marketing/demand, s"See full answer

Farhan I. - "What software is being used to draw the design?"See full answer

Personal W. - "Payment system requirement assumption: Need to be ACID Amount limitation - some validation for max input size can be done at client level/ API level. Need to store historic info - GDPR The information to be stored for database assumed can be structured so RDBMS like mysql or Postgres Notification requirement - if fail or success need to be text or email to user and or caller Scalable - Assumption that it deals with critical transaction so Availability and Scalability requirement i"See full answer

Puneet A. - "I recently had an experience with the Chipotle mobile app where I accidentally placed an extra order. Realizing my mistake within seconds, I tried to edit or cancel the order but found no option to do so in the app. Despite searching FAQs and attempting to contact the local store, I couldn't resolve the issue in time. This experience highlighted the importance of user-friendly design and clear communication in apps. If I were managing such a product, I would advocate for features like a grace pe"See full answer

Praveen D. - "Let me try to explain it with simple life analogy You're cooking dinner in the kitchen. Multithreading is when you've got a bunch of friends helping out. Each friend does a different job—like one chops veggies while another stirs a sauce. Everyone focuses on their task, and together, you all make the meal faster. In a computer, it's like different jobs happening all at once, making stuff happen quicker, just like having lots of friends helping makes dinner ready faster."See full answer

Srilaxmi C. - "Step 1: Clarify Before delving into the metrics, should I consider the current state of Google or when it just launched? Here, I am assuming the current state of Google. Google is currently a company that makes approx $15) billion in Revenue and 90 % of the revenue comes from Ads. Ads are core for Google's business and Google is the major player in the market Step 2: Goals: The main goal is to maximize revenue through effective Google Ads campaigns. This means ensuring that the campaign"See full answer

John F. - "(i) helped others success Over the years, I’ve had a few non-technical friends who wanted to start companies. Around two years ago, one of these friends reached out to ask for some guidance on how to start. This individual wanted to take the Airbnb model and apply it to outdoor recreational activities, mainly hunting and fishing. His problem was he had no frame of reference for where to start of what kind of effort and investment it would take. Over the course of a couple of conversations I help"See full answer

Daniel C. - "select name, stock from products p left join transactions t on p.id = t.product_id order by date desc limit 1"See full answer

Brit L. - "Question #1 Imagine you were in charge of Facebook Watch, what metric would you want to measure? Clarify: Facebook Watch offers users video content including news, sports, live stream shopping and gaming, etc. it works on both desktops and mobiles. It's a fairly recent feature. Mission: Facebook's overall mission is to connect people and help them build communities, and Facebook Watch can help Facebook achieve this by keeping users up to date with local news, or conn"See full answer