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Udemy Senior Data Scientist Interview Questions and Answers
Udemy Senior Data Scientist Interview Experiences
1 interview found
I applied via Company Website and was interviewed in Sep 2023. There were 2 interview rounds.
(1 Question)
- Q1. Design a recommendation model for Udemy platform using course content table and user interaction table.
- Ans.
Design a recommendation model for Udemy platform using course content table and user interaction table.
1. Use collaborative filtering to recommend courses based on user's past interactions and similar users' preferences.
2. Incorporate content-based filtering to recommend courses based on course content similarity.
3. Implement a hybrid recommendation system that combines collaborative and content-based filtering for bet...
They tried testing my prowess on Python coding on a moderate difficulty level.
Interview questions from similar companies
I applied via Naukri.com and was interviewed before Sep 2021. There were 2 interview rounds.
Question was moderate.based on logical reasoning and math.
Coding test question based on sql and python.
Interview Preparation Tips
I applied via LinkedIn and was interviewed before Sep 2021. There were 3 interview rounds.
(1 Question)
- Q1. DS and algorithm questions
(1 Question)
- Q1. IOS /Skillset questions some tricky questions
(1 Question)
- Q1. Personality and Compensation discussion
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed before Jul 2022. There were 3 interview rounds.
(3 Questions)
- Q1. Basics of js and react
- Q2. What are closures and give an example
- Ans.
Closures are functions that have access to variables from their outer scope even after the outer function has finished executing.
Closures are created when a function is defined within another function and has access to the outer function's variables.
They can access variables from the outer function even after the outer function has returned.
Closures are commonly used in event handlers and callbacks in JavaScript.
- Q3. What is event loop and features of es5
- Ans.
Event loop is a mechanism that allows JavaScript to perform non-blocking operations by handling asynchronous events.
Event loop is responsible for executing code, collecting and processing events, and executing queued sub-tasks.
ES5 features include strict mode, JSON object, Array methods like forEach, map, filter, and reduce, and Object.create method.
ES5 also introduced new methods for manipulating strings, such as trim
(1 Question)
- Q1. General management round and past experience
Skills evaluated in this interview
Senior Software Engineer Interview Questions & Answers
Great Learning
Anonymous
posted on 1 Nov 2023
I applied via Approached by Company and was interviewed before Nov 2022. There were 4 interview rounds.
(1 Question)
- Q1. Low Level design on Quiz Portal Application
- Ans.
Designing a low level architecture for a quiz portal application
Use a microservices architecture for scalability and flexibility
Implement a database schema to store quiz questions, answers, and user responses
Utilize caching mechanisms to improve performance
Design an authentication system to ensure secure access to quizzes
Include features for creating, editing, and taking quizzes
(1 Question)
- Q1. Questions Based on Python
(1 Question)
- Q1. Salary Expectations and Joining Process
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed before Feb 2023. There were 2 interview rounds.
(1 Question)
- Q1. Introduce yourself
Scenario based case study
I applied via Naukri.com and was interviewed in Dec 2023. There was 1 interview round.
(2 Questions)
- Q1. Asked about the Statistics concepts hypothesis,pvalue,mean,meadian.mode,normaldistrubution?
- Q2. Sql joins questions based on three tables, complex joins
Interview Preparation Tips
- Statistics
- SQL
- joins
I applied via Recruitment Consulltant and was interviewed in Jan 2024. There were 3 interview rounds.
(1 Question)
- Q1. Technical questions mostly around sql, project based and few theoretical questions on python
(1 Question)
- Q1. This was one of the most grilled interview i have given, require moderate level of sql understanding, was asked to share screen and solve it , also i had show how it is working then basic questions of py...
(1 Question)
- Q1. Was asked basic HR questions
Interview Preparation Tips
- SQL
- Python
- Excel
- Case Studies
I applied via Naukri.com and was interviewed in Mar 2024. There were 2 interview rounds.
(1 Question)
- Q1. The first round was a basic telephonic interview. Then simple basic SQL questions and some question based on Normalisation and DBMS were asked.
(1 Question)
- Q1. This was the toughest Data Analyst Interview I have faced till now. Interview was of 1 hr. Required higher level of SQL understanding. Asked to share screen and then solve SQL queries. Question based on jo...
Selected
I applied via Referral and was interviewed in May 2024. There were 5 interview rounds.
(2 Questions)
- Q1. Question based on Window Functions in sql
- Q2. Order of execution
- Ans.
Order of execution refers to the sequence in which operations are carried out in a program or system.
Execution starts from the top of the program and moves downwards.
Operations within parentheses are executed first.
Multiplication and division are executed before addition and subtraction.
Functions are executed when they are called.
Control structures like loops and conditionals affect the order of execution.
(2 Questions)
- Q1. Write a sql query to find out different routes for a airline. Table has two columns which are destination and source
- Ans.
Use a SQL query to find different routes for an airline based on source and destination columns in a table.
Use a SELECT statement to retrieve the distinct combinations of source and destination.
Use the DISTINCT keyword to ensure only unique routes are returned.
Order the results by source and destination for easier analysis.
- Q2. Situational questions based on Business KPI
(1 Question)
- Q1. Simple discussion on the role and company culture
(1 Question)
- Q1. Case study question
(1 Question)
- Q1. Basic Discussion on relocation and interest in joining the company.
Interview Preparation Tips
Skills evaluated in this interview
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Udemy Senior Data Scientist Interview Process
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