Interview Questions

Satyajit G. - "It might not be a good idea to predict stock prices only based on reddit comments. You could create a signal from reddit comments that can indicate "social media interest" and feed it into a ML system (along with other features) that predicts prices. Collecting good data to train the model and evaluating it correctly are going to be huge challenges."See full answer

Ian R. - "You might build a product like this a few ways. I think you'd definitely want a temperature sensor device (maybe like a TMP422, or maybe there's a different one that is standard for wearables) that was worn by the individual. As far as tracking social distance, my answer here is more dependent on the state of the art of robust (wearable) distance measurement. Maybe there's something available better than ultrasonic sensors, maybe there's some kind of electromagnetism based solution that isn't in"See full answer

Judy W. - "Clarifying questions What do you mean by “mattress”? All types and sizes of mattress? Are we only looking at mattress in the household or includes the service industry? Assumption Assume that we are looking at mattress in the household only. Assume that the number of people who own more than one mattress is negligibly small relative to the total US population. Figure that 20% of people are couple and are sharing beds, and 5% are newborns sleeping with their parents. **Appro"See full answer

Sue G. - "Abstract class A class that can have Abstract methods - without implementations and Concerete Methods i.e with implementation. Can have private, protected and public access modifiers. Supports Single inheritance i.e a class can extend only 1 abstract class Can have constructors Mainly used when sharing common behaviors Interface Class A collection of abstract methods ( can have static and default methods also - onwards of java 8) Public, static, final are the access"See full answer

Karthik M. - "Structure Why should we build this? + market, company, product, trends Users Painpoints Solutions Summary Clarify company - 0 to 1 Why should build this Market factors Size and opportunity (tam) sizeable market - billions of dollars in TAM Competitors (1) governments (2) parkmobile (3) vendors for each parking lot (parking structures / lots, man people) Strengths Parkmobile - available anywh"See full answer

Anjali A. - "The product owner works closely with the tech team day to day, keeping track of the sprint stories and backlog and helping to unblock day to day blockers and dependencies. The product manager oversees the roadmap of features from the discovery to solutioning stage."See full answer

147_gaurav K. - "conversession with you"See full answer

Anchal V. - "supervised learning: model is trained on the labeled data unsupervised learning: no labels provided - model learns by finding patterns , structure and groupings in the data. Semi-supervised learning: use small set of labels to guide learning for the larger pool of unlabeled data. reinforcement learning: leans by interacting with students the environment, receives reward and penalties based on actions self supervised: no labelled data . The model makes its own practice problems by"See full answer

IamaPM - "Number of visits to the site had increased, so total reservations infact went up, but conversion was down due to more users visiting, due to a promotion offered by the company or may be due to more ad entry points, social media, friend recommendations etc."See full answer

Mohammad M. - "Clarifying questions What is Facebook Events How does this work Is it only desktop based or app based as well Why Meta built it Core idea/tenet for Facebook is to have user engagement & to build everything around it. While people continue to interact with Facebook and create content on it, to increase the duration of engagement, having capability to host virtual events ensures community participation and making Facebook go beyond status and photo updates and let people coordinate"See full answer

Kuldeep Y. - "Do you have questions you want to ask me or any feedback you want to provide about the interview process? Tell me about your role & day to day basis of work in your current project in current company."See full answer

MM4 - "Success can be measured in various forms, both quantitatively and qualitatively. How many projects were delivered on time? Is the team tracking well against timelines? How often do they need to be course corrected? How much of the architecture is scalable when features are built on top of their work? What is the technical quality of the work produced by the team? How often are engineers from the team looped in for advice, mentorship outside the team? How often & why are interp"See full answer

Sarvesh G. - "def calc(expr): ans = eval(expr) return ans your code goes debug your code below print(calc("1 + 1")) `"See full answer

Anubhav A. - "Clarifying question: We are just interested in facebook's ad rev and not other meta products We are looking at the rev coming per year globally formula = (avg. ads shown per min on fb products) x (avg. time spent per user per day in mins) x (avg. rev that fb makes per view) x (DAU) x 365 assumption all kind of ads give the same rev per view to fb all kind of geographies give the same rev per view to fb avg. ads shown per min -> user can scroll upto 20 posts easily in a min, lets"See full answer

Anonymous Beaver - "Clarifying questions: Reason to add this feature? No particular reason but let's assume it's an industry practice Any resource constraints? None for now I am assuming all furniture sold on the site is Wayfair's and not sold by third parties? Yes Approach: Industry, company and product profile and target audience Wayfair is a e-commerce company selling furniture. Direct competitors are other online only businesses like amazon. Indirect competition include physical stores like home depot/l"See full answer

Shin K. - "First of all, there are different industries with different business in security measures which influence trends in the security industry as information they store and infrastructure they have are not the same. In this exercise, I'll take a look at the security industry in general and talk about the biggest trends from the perspectives of "lines of defense" for software in particular in: identify, data (on client and server side) and infrastructure. There are several topics associated with each"See full answer

Negar H. - "SW: Headway (Audio book app) Goal: Track user engagement with the product. (Analytics) To Track user engagement with the product I would first define the user actions defined as user engagement, and then define quantitative metrics to track user behaviour. User actions -> engagement: Actions: User Plays an Audio book (following by user's retention) User uses Next chapter button to continue listening User marks Audio books as favourites User shares Audio books Metrics: DAU & 2."See full answer

Scott S. - "As engineering managers, it’s our obligation to prioritize and manage technical debt properly. However, achieving the correct mix between reducing technical debt and providing new features while meeting deadlines can be fairly tough.To manage technical debt efficiently, it’s vital to first understand how to detect it inside your projects. One way to do this is by doing regular code reviews and encouraging your team to share any concerns or areas where they feel the codebase may be improved. This"See full answer