Roche Diagnostics Technical Engineer Interview Questions and Answers

Q1. 1. OOPS questions 2. SOLID and Design Pattern questions 3. Project explanation 4. Basic Pattern coding 5. Test question, UTest, ITest
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Q2. Resume discussion and question from resume skill set.
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Q1. 1. Design qestion. 2. Design pattern uses per use case.
Ans. 
Design patterns are used to solve common software design problems. Each use case requires a specific pattern.
• Design patterns are reusable solutions to common software design problems.

• Each use case requires a specific pattern to be used.

• Examples of design patterns include Singleton, Factory, and Observer.

• The choice of pattern depends on the problem being solved and the requirements of the system.
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Q1. Managerial round 1. Reason to switch. 2. Immediate joining 3. Conflict management with manager
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Q1. Salary negotiation and joining date.
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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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Q1. How to reverse two numbers without using temp variable
Ans. 
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. Self Introduction, explain about your projects
Ans. 
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. Wpf C# concept and sone codes for binding
Ans. 
WPF C# is a framework for building desktop applications. Binding is a way to connect UI elements to data sources.
• WPF stands for Windows Presentation Foundation

• C# is the programming language used for WPF development

• Binding allows for automatic updates of UI elements when data changes

• Example code for binding:

• DataContext is used to set the data source for binding
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Q1. Previous project and managerial rout
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Q1. Salary expectations
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2 coding questions and 10 mcqs

Q1. Sorting algorithms and oops concept in details.
Ans. 
Sorting algorithms and OOPs concepts
• Sorting algorithms are used to arrange data in a specific order.

• OOPs concepts provide a way to structure and organize code using classes and objects.

• Examples of sorting algorithms include bubble sort, insertion sort, and quicksort.

• OOPs concepts include encapsulation, inheritance, and polymorphism.
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Q1. Introduction and why you want to join the organization.
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Q1. First Technical Interview: All the C# basic and OOP's questions with written examples 1. Boxing and unboxing 2. Abstraction 3. Polymorphism 4. Delegate 5. Generic 6. Interface Logical question 1. Memory ...read more
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Q2. Second Technical Interview: C# based interview: 1. Ask to make reverse pyramid design pattern. 2. Factorial 3. A lot of questions on Interface with example of my current project. Why we use interface, and ...read more
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