Yoshops Data Science Interview Questions and Answers

3 hour oa - binary search , graph , dp

Q1. What is object orinted programing ?
Ans. 
Object-oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• Objects are instances of classes, which define the structure and behavior of the objects.

• Encapsulation, inheritance, and polymorphism are key principles of object-oriented programming.

• Examples include Java, C++, and Python, which are popular object-oriented programming languages.
Answered by AI
Add your answer
Q2. Write sql query for the bank transaction ?
Ans. 
SQL query to retrieve bank transactions data.
• Use SELECT statement to retrieve data from transaction table.

• Filter data based on account number or transaction date.

• Group data by transaction type or amount for analysis.
Answered by AI
Add your answer

Q1. Basic sql and data science related
Add your answer

Aptitude Test Online

Case study - Data domain

Q1. General ETL Testing questions
Add your answer
Q2. General Testing questions
Add your answer

Q1. Managerial Questions
Add your answer
Q2. Agile and Scrum questions
Add your answer

It was online aptitude test. Moderate level.

Q1. About project I worked on
Add your answer
Q2. Fav programming language and questions based on that
Add your answer

I/p - aaabcb
O/p - 3a2bc

Basic python questions

Q1. Trigger on contact
Ans. 
A trigger on contact is a mechanism in Salesforce that automatically initiates an action when a contact record is created or updated.
• Triggers are written in Apex, Salesforce's programming language.

• Triggers can be used to perform tasks like sending email notifications, updating related records, or enforcing business rules.

• Example: A trigger on contact can be used to update a custom field on the related account record wh
Answered by AI
Add your answer

Q1. Tell about your previous company experience.
Add your answer

Q1. Tell about yourself.
Add your answer

Q1. Describe SDLC and STLC.
Ans. 
SDLC is the process of developing software from planning to deployment, while STLC is the process of testing software within the SDLC.
• SDLC stands for Software Development Life Cycle and includes phases like planning, analysis, design, implementation, testing, deployment, and maintenance.

• STLC stands for Software Testing Life Cycle and includes phases like test planning, test design, test execution, and test closure.

• SDLC...read more
Answered by AI
Add your answer
Q2. How to use parallel execution?
Ans. 
Parallel execution allows running multiple test cases simultaneously to save time and increase efficiency.
• Use test automation frameworks that support parallel execution, such as TestNG or JUnit.

• Divide test cases into independent groups that can be executed concurrently.

• Ensure proper synchronization and resource management to avoid conflicts.

• Monitor and analyze the results to identify any issues or bottlenecks.

• Example: ...read more
Answered by AI
Add your answer

Q1. Write code to take screenshot.
Ans. 
Code to take screenshot in Java using Selenium WebDriver
• Import necessary libraries like org.openqa.selenium.OutputType and org.openqa.selenium.TakesScreenshot

• Create an instance of WebDriver and cast it to TakesScreenshot

• Use getScreenshotAs method to take the screenshot and save it to a file
Answered by AI
Add your answer
Q2. Write code to launch browser
Ans. 
Code to launch browser
• Use Selenium WebDriver to launch browser

• Specify the browser type (e.g. Chrome, Firefox)

• Handle any exceptions that may occur during browser launch
Answered by AI
Add your answer

Q1. Discussion regarding base location and salary
Add your answer