Avantor Software Developer Interview Questions and Answers

Two Easy questions to be solved

Q1. Some Technical based questions
Add your answer
Q2. It was amazing . Interviewer asked me to code for heap sort and asked me to explain.
Add your answer
Q3. Write a code for heap sort algorithm and explain it?
Ans. 
Heap sort is a comparison-based sorting algorithm that uses a binary heap data structure.
• Heap sort works by building a binary heap from the array and then repeatedly extracting the maximum element and placing it at the end of the array.

• The heap is maintained as a complete binary tree, where each parent node is greater than or equal to its children.

• The time complexity of heap sort is O(n log n) and it is an in-place sor...read more
Answered by AI
Add your answer

Q1. What is the iterator, generator in python. Write an example of it. What is .pyc file, when is it generate, generate and show it.
Ans. 
Iterator and generator are used in Python to iterate over a sequence of elements. .pyc files are compiled Python files.
• Iterator in Python is an object that enables a programmer to traverse a container, like a list.

• Generator in Python is a function that returns an iterator. It generates values using the yield keyword.

• Example of iterator: for num in range(5): print(num)

• Example of generator: def square_numbers(n): for i i...read more
Answered by AI
Add your answer
Q2. Coding Questions: 1) Reversing a number eg:1234 to 4321 2) Perform sorting in list using any sort algorithm 3) list1, list2 - both are mapped to each other, based on the traget value in list1, return th...read more
Add your answer
Q3. Technical questions : OS module, .pyc file, git commands,
Add your answer
Q4. What is bug life cycle? which project management methodolgy are you following in your current project.
Ans. 
Bug life cycle is the process of identifying, reporting, fixing, retesting, and closing bugs in a software project.
• Bug is identified by a tester during testing phase

• Bug is reported to the development team

• Development team fixes the bug

• Tester retests the bug to ensure it is fixed

• Bug is closed once confirmed fixed
Answered by AI
Add your answer
Q5. Questions on OOPS . What is polymorphism, write an example for that . Why do we use OOP's
Add your answer

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.
Answered by AI
Add your answer

Q1. Why do you want to join Thermo Fisher
Ans. 
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
Answered by AI
Add your answer

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
Answered by AI
Add your answer
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
Answered by AI
Add your answer

Q1. Self Introduction
Add your answer
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
Answered by AI
Add your answer

Q1. Java 8, 11 features with practical questions and coding.
Add your answer
Q2. Springboot, spring security, spring cloud, actuators
Add your answer

Q1. Data structures and algorithms
Add your answer
Q2. Java 8, 11 features with coding assignment
Ans. 
Java 8 and 11 introduced several new features and improvements to the language.
• Java 8 introduced lambda expressions, functional interfaces, streams, and default methods.

• Java 11 introduced local variable syntax for lambda parameters, HTTP client API, and new string methods.

• Example of Java 8 lambda expression: (x, y) -> x + y

• Example of Java 11 HTTP client API: HttpClient client = HttpClient.newHttpClient();
Answered by AI
Add your answer
Q3. Springboot related questions and coding
Add your answer