Interview Questions

Anonymous Sparrow - " To start, I'm going to make sure I understand the product correctly and also define what specific business metric we're trying to improve. Second, I will focus on defining the target user for which we want to improve the product and brainstorm what additional user problems we could solve. And third, I will generate solutions for these problems, prioritize them, and make a recommendation." First I want to understand if this product will aim to help me find the pet I want, or help me discover wh"See full answer

Lokesh K. - "Clarification: What are we trying to improve on Facebook Marketplace? I would like you to ponder on this. I'll take on how to monetize the Marketplace. Thus, improving it from the company's perspective Do we have any particular Demography in Mind Take India, as it is one of the biggest market available. What do I understand by Facebook Marketplace? It is a place where both buyers and sellers get a chance to connect within Facebook. The Sellers have the option of postin"See full answer

Cameron P. - "Estimate the market size for Google Fi Market size -> total revenue/sales in a market = market share Google Fi -> telecommunication services by google. Only for US market Market size = (1)google fi customers / (2)total customers in the market (2)total customers in the market 300m ppl in the US 0-90 life expectancy Factor out 0-12,80-90 240m ~250m ppl in the US who are using phones and need a telecommunication service (1)google fi customers Version 40% - 110m AT&T 30% - 70m T-Mobil"See full answer

Wizzy B. - "URL> DNS over UDP> IP address > TCP handshake > HTTP(SSL handshake) req, responses, websites architectures for any query DB, servers."See full answer

Ash I. - "Follow STAR Example: In my most recent role at x, we've been working every quarter to set our quarterly goals or even decide for the year but given in 2022 we've been through a great resignation phase there was a high attrition because of which we have overloaded engineering teams. During last quarterly planning, I started to question with my manager about giving a focus to our engineering, so we complete one thing absolutely fine which is more impactful for our customers and add immediate val"See full answer

Lucas G. - "Type I error (typically denoted by alpha) is the probability of mistakenly rejecting a true null hypothesis (i.e., We conclude that something significant is happening when there's nothing going on). Type II (typically denoted by beta) error is the probability of failing to reject a false null hypothesis (i.e., we conclude that there's nothing going on when there is something significant happening). The difference is that type I error is a false positive and type II error is a false negative. T"See full answer

Emiliano I. - "Look for the main variables and see if there differences in the distributions of the buckets. Run a linear regression where the dependent variable is a binary variable for each bucket excluding one and the dependent variable is the main kpi you want to measure, if one of those coefficients is significant, you made a mistake. "See full answer

Mrinalini A. - "Clarifying question - Who are we? Any constraints - time/money? What region are we going to focus on? Do we have a goal in mind? I'm assuming a product like this does not exist in today's world. How do you define kids - any specific age range? User Segments - 1) Beginner - don't know what an ATM is/don't understand money that well 2) Intermediate - have a basic understanding of ATMs 3) Advanced - have a really good understanding - maybe are on the older side Segment chosen is the Intermediate"See full answer

Calyan - "Hangouts 100k feedback gave 3* rating, in 2013. What to do next Clarify: Solving for 2013, should disregard changes made (Allo, Gchat, Gmeet) since then? [yes] Is this on any specific platform - App Store or Play store? [both] Consumer or Enterprise [consumer] Problem framing - - - - - - - - - - - - - Mission: org world info., be helpful. Hangouts role in this mission to help users stay connected, exchange info and content (via messages and calls) Biz/ Prod goals Growth/ acq Install ba"See full answer

Amparo L. - "I was a student worker at Gordon's Food Service, Schaumburg, My tasks were vacuuming onion peels, checking expiration dates, cleaning the break room, cleaning the shelves from the Ailes, Stocking stuff on shelves, sweeping the backroom, mopping, Refilling bottles with cleaning supplies and cleaning the fridge glass."See full answer

Nitin P. - "public static void sortBinaryArray(int[] array) { int len = array.length; int[] res = new int[len]; int r=len-1; for (int value : array) { if(value==1){ res[r]= 1; r--; } } System.out.println(Arrays.toString(res)); } `"See full answer

John F. - "First, I would like to establish some assumptions about the problem to determine if this is possible. For this scenario, I will assume that “accepted” does not mean a student is enrolled at the university (most students apply to multiple universities and can only attend one university). For simplicity, I will also assume that each student is applies to a single department and that every student is associated with a single department. Based on this information, I see a scenario that this would"See full answer

Michael B. - "Problem: Given a modified binary tree, where each node also has a pointer to it's parent, find the first common ancestor of two nodes. Answer: As it happens, the structure that we're looking at is actually a linked list (one pointer up), so the problem is identical to trying to find if two linked lists share a common node. How this works is by stacking the two chains of nodes together so they're the same length. chain1 = node1 chain2= node2 while True: chain1 = chain1.next chain2=chain"See full answer

Josh L. - "I would define success by first figuring out what our goal is by building the reels feature. Are we trying to increase DAUs? Increase enagement? Etc... For the sake of this, I think to define success it makes most sense to see if there is an increase in the amount of time users are spending on instagram. If time spent per user increases, it is likely that ad spend can increase and in turn increases instagram's reveue. We need to be sure that there are guard rails in place and make sure that by"See full answer

Claudia S. - "s3 blob storage? It's Google not Amazon."See full answer