Interview Questions

Yenenash W. - "p- value --> Assuming the null hypothesis is true, probability of observing the data as extreme as the observed data. Example - You're running an experiment on a new checkout flow. Control converts at 10.0%, treatment converts at 10.8%. You run a two-sample z-test and get p = 0.03. What this means: If there were truly no difference between control and treatment (null hypothesis), there's only a 3% chance you'd see a difference of 0.8pp or larger just from random sampling noise."See full answer

Exponent - "You should be able to easily identify this as a Measure Success question. These kinds of questions are used to test your analytical skills, as well as your ability to track project progress post-launch. Recall the strategy for tackling them methodically and thoroughly: Ask clarifying questions State the goal of the feature / product Behavior Mapping / UX Flow Mapping Provide criteria to prioritize metrics Prioritize metrics Summarize Let's begin! "See full answer

Yash G. - " import java.util.*; enum RideType { SHARED, PRIVATE, EXECUTIVE } enum VehicleType { SEDAN, SUV, HATCHBACK, LUXURY, VAN, ELECTRIC, AUTO_RICKSHAW, BIKE_TAXI } final class Location { private final double logitude; private final double latitude; private final String location; public Location(double logitude, double latitude, String location){ this.logitude = logitude; this.latitude = latitude; this.l"See full answer

Oluwaseun F. - "Too Technical and too serious. Show personality, they do not put on videos most times, so you won't see them, but they are watching you."See full answer

Derrick M. - "SELECT u.id as user_id, u.name, COUNT(t.product_id) AS orders FROM users u JOIN transactions t ON t.user_id = u.id JOIN products p ON p.id = t.product_id GROUP BY u.id, u.name ORDER BY orders DESC LIMIT 1 `"See full answer

Saket S. - "If other org is not taking PM seriously, then following may be potential reasons: They don't like the way PM communicates with them They do not understand project goals They do not understand requirements clearly They are occupied with other high priority project I think Project Manager did not prepare himself well before reaching out to org for resources. He can use the following approach to get resources from a different org: Good documentation: PM should capture the project"See full answer

Anonymous Panda - "If I had to deliver a product or feature in half (or less) of the initial timeline, here's what I would do: Prioritize the features: I would prioritize the features that are essential for the product's functionality and customer value. I would focus on the must-have features and put the nice-to-have features on hold. Reassess the resources: I would reassess the resources available and determine if additional resources are required to meet the new timeline. I would explore options such as h"See full answer

Arya R. - "I'm going to assume the problem is limited until the point of where the rider get into the car. Rider segments/characteristics: Local rider (lives and travels in the same city) Tourist rider (visiting a city, using Lyft for the first time in the city) Lets think about some problems for these types of users: Local rider: (Choose to prioritize on these use-cases assuming its a larger % of rides overall) Ride shows as confirmed, but driver does not move on the map Driver does"See full answer

Prashanth A. - "We are asked to calculate Sum(over value) for time in (t - window_size, t) where key in (key criteria). To develop a function to set this up. Let w be the window size. I would have an observer of some kind note the key-value, and for the first w windows just add the value to a temporary variable in memory if the key meets the key criteria. Then it would delete the oldest value and add the new value if the new key meets the criteria. At each step after "w", we would take the sum / w and store"See full answer

D B. - "An effective PM should be clear about the vision and mission. Faciliate the team to achieve its goals by unblocking the obstacles. Smart enought to figure out Risks and should plan effectively to mitigate the risks. Good listener and communicator .Should be able to empower the team , appreciative ,positive minded and with empathy for everyone"See full answer

Anonymous Spider - "1) Start by clarifying your constraints - which side of the marketplace am I focusing on and what are they solving for? (e.g., minimize cost for hoster, maximize comfort for renter indoor etc.). Assuming this is a "dealer's choice" type response then proceed to step 2 2) Where to focus: which customer segment, which job-to-be-done, and why I'd start by laying out segments on 2 dimensions: urban (think big cities, downtowns) and suburban (think suburbs, beach towns, mountains) areas focused on e"See full answer

Joshua R. - "Hadoop is better than PySpark when you are dealing with extremely large scale, batch oriented, non-iterative workloads where in-memory computing isn't feasible/ necessary, like log storage or ETL workflows that don't require high response times. It's also better in situations where the Hadoop ecosystem is already deeply embedded and where there is a need for resource conscious, fault tolerant computation without the overhead of Spark's memory constraints. In these such scenarios, Hadoop's disk-b"See full answer

Anonymous Parakeet - "Clarifying Questions: How far is the retirement home from the convenience store? What part of the world is this convenience store located in? Will this be designed for Boomer generation or later generations when they retire? We assume that the convenience store is right next door, is located in the US in a very suburban location, and is designed for the Boomer generation that is retired/retiring Users: We assume retirement homes, or assisted living facilities take in folks who"See full answer