Beckman Coulter Software Engineer Interview Questions and Answers

Q1. OOPs and C# Basics were covered
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Q1. WPF related questions, C# tricky questions and small logical assignment was given
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Q1. Talked with product manager. Discussion around agile methods and processes
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Q1. Comparator and Comparable
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Q2. Spring Boot related question
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Q1. Asp.Net + C# technicals
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Q1. How do you find the code performance issue in the code deployed in production?
Ans. 
To find code performance issues in production, use monitoring tools and profiling techniques.
• Use monitoring tools like New Relic, AppDynamics, or Datadog to track performance metrics and identify bottlenecks.

• Use profiling techniques like CPU profiling, memory profiling, and network profiling to pinpoint specific areas of the code that are causing performance issues.

• Analyze logs and error messages to identify patterns a...read more
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Q2. What is asynchronous programming
Ans. 
Asynchronous programming is a programming paradigm that allows multiple tasks to run concurrently without blocking each other.
• Asynchronous programming is used to improve the performance of applications that require a lot of I/O operations.

• It involves the use of callbacks, promises, and async/await keywords in JavaScript.

• Asynchronous programming can be used in both front-end and back-end development.

• Examples of asynchro...read more
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Q3. Write a program to change background after every 0.5 sec interval to orange,white,green on button click in Angular?
Ans. 
Program to change background color on button click in Angular
• Create a button in Angular template

• Add click event listener to the button

• Use setInterval() function to change background color after every 0.5 sec

• Use ngStyle directive to change background color dynamically
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Q4. How to load a component only after 3 of my services are loaded?
Ans. 
Use Angular's 'resolve' property to load component after services are loaded.
• Create a resolver service that waits for all three services to complete before resolving.

• Add the resolver service to the 'resolve' property of the component's route.

• Access the resolved data in the component using the ActivatedRoute service.

• Example: { path: 'my-component', component: MyComponent, resolve: { data: MyResolverService } }
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Q5. What is difference between iquerable and ienumrable
Ans. 
IQueryable is for querying data from a source that implements IQueryable interface while IEnumerable is for iterating over a collection of data.
• IQueryable is used for deferred execution while IEnumerable is used for immediate execution.

• IQueryable is used for querying data from a remote data source while IEnumerable is used for querying data from an in-memory collection.

• IQueryable is more efficient for large datasets as...read more
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Q6. When you go with entity framework and ado.net
Ans. 
Entity Framework is an ORM while ADO.NET is a data access technology.
• Entity Framework is easier to use and provides more abstraction than ADO.NET.

• ADO.NET is faster and more flexible than Entity Framework.

• Use Entity Framework for simple CRUD operations and ADO.NET for complex queries and performance-critical applications.
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Java, Javascript, Html, Css, - everything basics

Q1. Questions can be asked about the task u have given, and your overall knowledge on programming
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Q1. Tell me about yourself
Ans. 
I am a software trainee with a passion for coding and problem-solving.
• I have recently completed my Bachelor's degree in Computer Science.

• During my studies, I gained hands-on experience in programming languages like Java and C++.

• I have also worked on various projects, including a web application for managing inventory.

• I am a quick learner and enjoy staying updated with the latest technologies in the software industry.

• I ...read more
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Q2. Any previous experience? if any
Ans. 
Yes, I have previous experience in software development.
• Worked as a software intern at XYZ company for 6 months

• Developed a web application using Java and Spring framework

• Collaborated with a team to deliver a mobile app for iOS and Android platforms
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Q1. DSA question, String constant pool Project related basic
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