Yara International Senior QA Engineer Interview Questions and Answers

It was a website-based test and some average type questions

Advanced Python skills is required to clear the interview

Q1. Explain logistic regression
Ans. 
Logistic regression is a statistical model used to predict the probability of a binary outcome based on one or more predictor variables.
• Logistic regression is a type of regression analysis used when the dependent variable is categorical or binary.

• It estimates the probability of the outcome using a logistic function.

• The model calculates the odds of the outcome and transforms them into probabilities.

• It uses a logit link ...read more
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Q1. What is pandas?
Ans. 
pandas is a Python library used for data manipulation and analysis.
• pandas provides data structures like DataFrame and Series for working with structured data

• It offers tools for cleaning, transforming, and analyzing data

• pandas can handle various data formats like CSV, Excel, SQL databases, and more
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Q2. While webscraping, do HTML tables also get extracted?
Ans. 
Yes, HTML tables can be extracted while webscraping.
• HTML tables can be extracted using libraries like BeautifulSoup in Python.

• The data from the HTML tables can be converted into a structured format like CSV or Excel.

• Webscraping tools like Octoparse and Import.io can also extract HTML tables.

• Regular expressions can be used to extract specific data from HTML tables.
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Q1. Strict verification process
Ans. 
Strict verification process ensures high quality of the product.
• Define clear acceptance criteria

• Perform thorough testing at each stage

• Use automated testing tools

• Conduct peer reviews

• Implement continuous integration and delivery

• Document all test cases and results
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Q2. Need to submit all educational ,all job companies details
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Round duration - 60 minutes
Round difficulty - Easy

This was a written test with 2 coding problems.

Q1. 
Combination Sum Problem Statement
Given an array of distinct positive integers ARR and a non-negative integer 'B', find all unique combinations in the array where the sum is equal to 'B'. Numbers can be c...read more
Ans. 
The task is to find all unique combinations in an array where the sum is equal to a given target sum, with elements in non-decreasing order.
• Use backtracking to generate all possible combinations.

• Sort the array to ensure elements are in non-decreasing order.

• Keep track of the current combination and sum while exploring the array.

• Recursively explore all possible combinations.

• Return the valid combinations that sum up to th
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Q2. 
Next Greater Number Problem Statement
Given a string S which represents a number, determine the smallest number strictly greater than the original number composed of the same digits. Each digit's frequenc...read more
Ans. 
The task is to find the smallest number greater than the given number with the same set of digits.
• Iterate from right to left to find the first digit that can be swapped with a larger digit to make the number greater.

• Swap this digit with the smallest digit to its right that is larger than it.

• Sort all digits to the right of the swapped digit in ascending order to get the smallest number.

• If no such number exists, return -
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Qa exams with sql and excel training

Q1. Sql details and explain about myself
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