Circulants DOT NET Developer Interview Questions and Answers

Q1. Earlier work experiences
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Q2. Design Patterns
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Q1. What is Dependency injection ?
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Dependency injection is a design pattern where components are given their dependencies rather than creating them internally.
• Dependency injection helps in achieving loose coupling between classes.

• It allows for easier testing and maintenance of code.

• There are three types of dependency injection - constructor injection, setter injection, and interface injection.

• Example: Instead of creating an instance of a class within an...read more
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Q2. Injecting Dependencies instead of creating them.
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Injecting dependencies allows for better flexibility, testability, and maintainability in code.
• Injecting dependencies means passing objects that a class needs rather than creating them within the class.

• This allows for easier testing by mocking dependencies and swapping them out for different implementations.

• Dependency injection frameworks like Unity, Ninject, or Autofac can help manage dependencies.

• Example: Instead of ...read more
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Q1. What is garbage collection in .NET?
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Garbage collection in .NET is an automatic memory management process that helps in reclaiming memory occupied by objects that are no longer in use.
• Garbage collection is a process where the runtime environment automatically deallocates memory that is no longer needed by the program.

• It helps in preventing memory leaks and improving the performance of the application.

• Garbage collection in .NET uses generations to categori...read more
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Q2. Automatic memory management system.
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Q1. Difference between async and await?
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Async is used to define a method that can be run asynchronously, while await is used to pause the execution of an async method until a task is complete.
• Async is used to define a method that can be run asynchronously.

• Await is used to pause the execution of an async method until a task is complete.

• Async methods can be called using the await keyword to run them asynchronously.

• Async and await are used in C# to simplify asy
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Q2. Async defines, await pauses execution.
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async defines, await pauses execution in asynchronous programming in C#.
• async keyword is used to define a method as asynchronous in C#.

• await keyword is used to pause the execution of an asynchronous method until the awaited task completes.

• Asynchronous programming allows non-blocking execution of code, improving performance and responsiveness.

• Example: async Task<int> GetDataAsync() { await Task.Delay(1000); return
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Q1. What is the difference between an abstract class and an interface in object-oriented programming?
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Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.
• Abstract class can have method implementations, while interface cannot.

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

• Interfaces are used to define contracts for classes to implement, while abstract classes are used to provide a common base for subclasses.

• Example: Abstr...read more
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Q2. Abstract classes can have implemented methods; interfaces can only have declarations (before JAVA 8).
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