Optum Global Solutions Softwaretest Engineer Interview Questions and Answers

Q1. What is delegates
Ans. 
Delegates are a type-safe function pointers used in C# to reference methods.
• Delegates allow methods to be passed as parameters

• Delegates can be used to define callback methods

• Delegates are used in event handling in C#
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Q2. Why we use interface in .net core
Ans. 
Interfaces in .NET Core provide a way to define a contract for classes to implement, promoting code reusability and flexibility.
• Interfaces allow for multiple inheritance in .NET Core, as a class can implement multiple interfaces.

• Interfaces help in achieving loose coupling between components, making the code more maintainable and testable.

• Interfaces are used for dependency injection in .NET Core, allowing for easier uni...read more
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Q3. Why we use garbage collection
Ans. 
Garbage collection is used to automatically manage memory by reclaiming unused memory and preventing memory leaks.
• Prevents memory leaks by reclaiming memory that is no longer in use

• Reduces the risk of memory errors and crashes

• Improves performance by freeing up memory for other processes

• Eliminates the need for manual memory management, reducing developer workload
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2 hrs probablity questions

Q1. Find max element from array
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Q2. Binary seeach algo
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Simple aptitude questions and multiple choice coding questions were asked.

Q1. Explanation about project
Ans. 
I have worked on a project to develop a mobile application for tracking fitness activities and providing personalized workout plans.
• Developed user-friendly interface for inputting and tracking fitness data

• Implemented algorithms to generate personalized workout plans based on user's goals and progress

• Integrated with wearable devices to automatically sync activity data

• Conducted thorough testing to ensure accuracy and rel...read more
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Q2. SQL queries which were easy
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Q3. Linked list and arrays
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Im in freshar in BE engineering is complete

Coding test in second round

C programming, microcomputer

Coding test data structure related 2 questions

Q1. Sql related questions
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Q1. Project related questions
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Q1. It was easy hr questions
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The first round is the aptitude+Core Subjects(Dsa+Cloud+Networking+Sql+Devops+ML)+ Coding One basic and one Advance