Eurofins Scientific Senior QA Engineer Interview Questions and Answers

Q1. Regarding cleaning
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Q2. Data processing
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Q1. Senior manger doesnt have any knowledge
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Q2. He asks only cleaning part
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Q1. What is your highest qualification
Ans. 
My highest qualification is a Master's degree in Electrical Engineering.
• Master's degree in Electrical Engineering

• Specialized in power systems

• Thesis focused on renewable energy integration

• Completed advanced courses in control systems

• Published research papers in IEEE conferences
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Q1. What is your role and responsibilities in the project quality?
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As a Senior Engineer, my role in project quality is to ensure that all deliverables meet the required standards and specifications.
• Developing and implementing quality assurance processes and procedures

• Conducting regular audits and inspections to identify any quality issues

• Collaborating with cross-functional teams to address and resolve quality concerns

• Creating and maintaining quality documentation, including test plans...read more
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Q1. How to reverse two numbers without using temp variable
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To reverse two numbers without using a temp variable, use bitwise XOR operation.
• Use bitwise XOR operation to swap two numbers without using a temp variable.

• Example: a = 5, b = 7. a = a XOR b, b = a XOR b, a = a XOR b. After this, a = 7, b = 5.
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Q1. Why do you want to join Thermo Fisher
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I want to join Thermo Fisher because of their reputation for innovation and impact in the scientific community.
• Thermo Fisher is a leader in the scientific research and healthcare industry

• I am impressed by their commitment to innovation and cutting-edge technology

• I believe working at Thermo Fisher will provide me with opportunities for professional growth and development
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Q1. All basic java questions
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Q1. Coding question was asked. It was easy.
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Q1. One on one with Manager. It was easy and manager was really nice.
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Q1. HR was direct and asking generic questions related to previous experience and behavioral questions.
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It was a test to create a login page and connect to database

Q1. What is difference between interface and abstract class
Ans. 
Interface is a contract with no implementation, while abstract class can have some implementation.
• Interface cannot have any implementation, only method signatures

• Abstract class can have both abstract methods and concrete methods

• A class can implement multiple interfaces but can only inherit from one abstract class

• Interfaces are used to achieve multiple inheritance in Java
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Q2. What are main concepts of oops
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Main concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the nec
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Q1. Self Introduction, explain about your projects
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I am a software engineer with experience in developing web applications using Java, Spring Boot, and Angular.
• Developed a web application for a retail company using Java and Spring Boot

• Implemented RESTful APIs for communication between frontend and backend

• Designed and developed user interfaces using Angular framework
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Q2. Rotate an array n times with a O(1) time complexity
Ans. 
Use modular arithmetic to efficiently rotate array n times.
• Use modular arithmetic to calculate the effective number of rotations (n % array length)

• Reverse the entire array

• Reverse the first n elements

• Reverse the remaining elements
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Q1. Self Introduction
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Q2. What do you know about the company
Ans. 
The company is a leading software development firm specializing in creating innovative solutions for various industries.
• Specializes in creating innovative software solutions

• Works with clients from various industries

• Known for high-quality and reliable products

• Has a strong team of software engineers and developers
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Q1. Introduction about yourself.
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I am a software engineer with 5 years of experience in developing web applications.
• I have a strong proficiency in programming languages like Java, Python, and JavaScript.

• I have experience in working with frameworks like Spring Boot and Django.

• I am skilled in front-end development using HTML, CSS, and JavaScript.

• I have worked on database management systems like MySQL and MongoDB.

• I have knowledge of version control syste...read more
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Q2. Hashmap internal working
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