Interview Questions

Laura U. - "productssold = set(transactions['productid']) unsoldproducts = products.loc[~products['id'].isin(productssold)] return unsold_products[["id", "name", "stock"]] `"See full answer

Jasmine Y. - "It depends on the size of the dataset. You want enough samples in both the testing, training and evaluation sets. If there is enough data, 70/20/10 is a good split"See full answer

Kevin S. - "The question given is intentionally very open ended. As the key phrases used are "air travel" which can encompass all parts of the journey not just the airport or flight experience & "improve the perception" which doesn't necessarily require fixing the problem (although you'd hope that was part of the conclusion). In addition, the constraints of time (1-year) and resources ($10M) means you must be very prescriptive. As such I think it'd be important to ask the following clarifying questions"See full answer

Mallikarjun B. - "I consider my greatest strengths to be my inquisitive nature and my ability to empathize with users. My inquisitiveness drives me to question and challenge the status quo, constantly seeking new perspectives and innovative approaches. I find inspiration in observing advertisements, analyzing their plots, and connecting them to the products being advertised. This curiosity fuels my creativity and pushes me to think outside the box. Furthermore, my empathetic nature plays a vital role in my desig"See full answer

Khushbu R. - "Let’s say the matrix is m x n (i.e., m rows and n columns). Start from the top-right corner of the matrix. Move left if you see a 1. Move down if you see a 0. Keep track of the row index where you last saw the leftmost 1 — that row has the most 1s. public class MaxOnesRow { public static int rowWithMostOnes(int matrix) { int rows = matrix.length; int cols = matrix[0].length; int maxRowIndex = -1; int j = cols - 1; /"See full answer

Anonymous Salamander - "Microservices are small parts of a application we can deploy them seprately and use them as a application feature."See full answer

Adrian V. - "What about sharding by Real Estate companies that are listing the homes? Because the homes can span zip codes. Then further shard by zip codes?"See full answer

Ridhima K. - "Youtube's mission is to give everyone a voice and show them to the world, in video format. In order to do so, Youtube is optimizing the experience for creators and consumers, and needs to add a layer of smart discovery for bringing the content to the world. Recommendation engine can be for creators- recommending what type of videos (length, genre, video size, etc) they should create for maximum viewership, or for consumers, recommending relevant videos. We'll focus on the recommendation engi"See full answer

Noor M. - "Yes, I need to compare the first half of the first string with the reverse order of the second half of the second string. Repeat this process to the first half of the second string and the second half of the first string."See full answer

Sean L. - " import pandas as pd def findaveragedistance(gps_data: pd.DataFrame) -> pd.DataFrame: #0. IMPORTANT: get the unordered pairs gpsdata['city1']=gpsdata[['origin','destination']].min(axis=1) gpsdata['city2']=gpsdata[['origin','destination']].max(axis=1) #1. get the mean distance by cities avgdistance=gpsdata.groupby(['city1','city2'], as_index=False)['distance'].mean().round(2) avgdistance.rename(columns={'distance':"averagedistance"}, inplace=True) "See full answer

Scarlett S. - "(This is debugging, then trade off question) WAU and email open rates can be influencing each other, especially an email opened and then clicked could lead to an active user, but it doesn't necessarily mean that they have correlations or be the only reason causing changes. The approach So we definitely need to look at each cause of Why MAU goes up, and why email notification open rates go down, then develop some hypothesis on for proper cause, I'd love to gather some info to narr"See full answer

Anonymous Lizard - "average percentage WATCH time of the top 5 recommendations given by the engine"See full answer

Rahul J. - "Skype is a communication and collaboration tool used by individuals and businesses. Users can send messages, do audio and video calls, share screen etc. There are two parts to the business model: Individual user - to - individual user: users can make audio and video calls at no fee Enterprises: Organisations need to purchase the subscription for internal usage. Revenue depends on \# of paying enterprises, length of subscription, price per month/year Product objective: increase rev"See full answer

Vijendar K. - "I'd like to clarify the question here for better understanding. Are we targeting any location? Assuming WW Do we have any demographics of the users? Assuming overall users Did we see any drop recently in TV watching users metrics for which we want to improve the watch time on TVs? No, in general we want to improve this area. Are we looking to improve the overall Netflix watch time on TV, not to acquire new users? Correct. As Netflix is offering content of so many genres of con"See full answer

Piyush D. - "Honestly, In addition to having the right expertise and skills required for this job, I am really looking forward to being part of this organisation’s journey. I am really confident that I will really exceed your expectations in achieving both mine and the company’s goals. I have worked with different teams in different capacities, managed a team of engineers successfully from very early part of my career and that has made me a very easy person to work with. I get things done easily. I am passio"See full answer

Delyan P. - "Leadership though empathy - I helped underperforming engineer to break into product since she had great product qualities like good attention to the user.. Now she is my peer and we cross-collaborate extensively. I have earned her trust and she can go the extra mile when my team needs some support."See full answer

Josephine F. - "How do you ensure that your process maps accurately reflect current workflows in a university?"See full answer

Vijay P. - "Explained in STAR format one of the project situation where I had to collect data points by deploying a minimum viable product due to unclear business requirements/dynamic nature of business. Emphasized on exact data points and how they strategically used to iteratively deploy improved version of product."See full answer