Testbook.com QA Engineer Interview Questions and Answers

Q1. What is class in python
Ans. 
In Python, a class is a blueprint for creating objects with attributes and methods.
• Classes are used to create new objects with specific properties and behaviors.

• They can have attributes (variables) and methods (functions) associated with them.

• Classes can be used to create multiple instances of objects with the same structure but different data.

• Inheritance allows classes to inherit attributes and methods from other clas...read more
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Q2. What is object in python
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In Python, an object is a collection of data (variables) and methods (functions) that act on the data.
• Objects are instances of classes in Python.

• They have attributes (variables) and methods (functions) associated with them.

• Objects can be created using the class keyword.

• Example: class Car: def __init__(self, make, model): self.make = make self.model = model car1 = Car('Toyota', 'Corolla')
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Q1. What are your strengths'
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Q2. What are weakness
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One of my weaknesses is that I can be overly critical of my own work.
• I tend to be a perfectionist and can spend too much time on a task to ensure it is flawless

• I sometimes struggle with delegating tasks to others because I want to make sure they are done correctly

• I am working on improving my time management skills to prioritize tasks more effectively
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Easy leetcode code 2 questions , HTML5 css javascript simple screen design

Q1. Oop, Simple coding javascript, react basic, sql basic
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Q1. Tell me about yourself Why want to join
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Q2. Willing to relocate , salary expectations
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Q1. Knowledge regarding the position
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Q1. Knowledge relevant to position
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Round duration - 120 minutes
Round difficulty - Easy

It was a mix of mathematical aptitude, logical ability, and puzzles along with 2 programming questions of easy and medium level. Time was enough and no sectional time was present. 1-2 MCQs on SQL were also present.

This round was immediately followed by an SHL aptitude test which was basically a quick limited time check of your verbal ability and math because many questions were to be done in 1 hour.

Q1. 
Boolean Matrix Transformation Challenge
Given a 2-dimensional boolean matrix mat of size N x M, your task is to modify the matrix such that if any element is 1, set its entire row and column to 1. Specifi...read more
Ans. 
Modify a boolean matrix such that if any element is 1, set its entire row and column to 1.
• Iterate through the matrix and mark rows and columns to be modified

• Use additional arrays to keep track of rows and columns to be modified

• Update the matrix in-place based on the marked rows and columns
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Round duration - 60 minutes
Round difficulty - Easy

It was an online video interview round on HackerEarth with simultaneous code option. It was mostly justifying your resume in the first 15 minutes. After that OOPS was majorly asked. Basics of programming including questions on STL were asked. A class which required inheritance was asked by the interviewer to write. I was helped by the interviewer if i got stuck somewhere, Some questions on implementation of hashmaps and priority queues were also asked. A puzzle was asked which luckily struct to me at that moment.

Q1. Explain request lifecycle in rails?
Ans. 
Request lifecycle in Rails involves routing, controller actions, rendering views, and responding to the client.
• 1. Request comes in through the browser or API endpoint.

• 2. Rails router determines which controller and action to route the request to.

• 3. Controller action processes the request, interacts with the model, and prepares data for the view.

• 4. View template is rendered with the data from the controller.

• 5. Response ...read more
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Q2. Code Merge Sort using Ruby
Ans. 
Implement Merge Sort algorithm in Ruby
• Divide the array into two halves recursively

• Merge the sorted halves back together

• Use a helper method to merge the two halves
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Good, short and concise

Q1. Why do you want to join
Ans. 
I am passionate about the industry and believe in the company's mission and values.
• Passionate about the industry

• Believe in the company's mission and values
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