10+ Meru Info Solutions Interview Questions and Answers

String is immutable, while StringBuilder is mutable. StringBuilder is faster and more memory efficient for string manipulation.

• String is immutable, meaning once created, it cannot be changed. StringBuilder is mutable, allowing for efficient string manipulation.

• StringBuilder is faster than String for concatenating multiple strings, as it does not create a new string object each time.

• String uses more memory as it creates a new object every time it is modified, while StringBuild...read more

Abstract class is used when there is a need for default implementation, while interfaces are used for multiple inheritance.

• Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.

• Abstract classes can provide default implementations for methods, while interfaces cannot.

• Interfaces allow a class to implement multiple interfaces, but can only inherit from one abstract class.

• Use abstract classes when there is a need for a c...read more

Pipelines and Middlewares in .NET are used for request processing and can be configured using middleware components.

• Pipelines in .NET are used to define a series of middleware components that process an HTTP request.

• Middlewares are components that can handle requests and responses in the pipeline.

• To configure pipelines and middlewares in .NET, you can use the 'UseMiddleware' method in the 'Configure' method of the Startup class.

• You can also use extension methods like 'UseRout...read more

JWT authentication and OAuth example for API

• Implement JWT authentication by generating a token upon user login and including it in the Authorization header of API requests

• Use OAuth for user authorization by obtaining access tokens from a third-party provider like Google or Facebook

• Ensure API endpoints validate JWT tokens and OAuth access tokens before allowing access to resources

NET core is a cross-platform, open-source framework for building modern, cloud-based, internet-connected applications. NET framework is a Windows-only framework for building Windows desktop applications. NET is a general term encompassing both .NET core and .NET framework.

• NET core is cross-platform and open-source, while .NET framework is Windows-only.

• .NET core is modular and lightweight, allowing for faster performance and easier updates.

• .NET core is designed for building mo...read more

Unique, Primary Key, Clustered, and Non-Clustered Indices are all used in database management to enforce data integrity and improve query performance.

• Unique constraint ensures that all values in a column are unique, but allows NULL values.

• Primary Key constraint ensures that all values in a column are unique and not NULL. Each table can have only one Primary Key.

• Clustered Index physically reorders the way records in the table are stored. Each table can have only one Clustered ...read more

App.Use() is used for adding middleware to the request pipeline, while App.Run() is used for handling the request directly.

• App.Use() is used to add middleware components to the request pipeline.

• App.Run() is used to handle the request directly without passing it to the next middleware component.

• App.Use() is typically used for setting up middleware like authentication, logging, etc.

• App.Run() is used for handling the final request and generating a response.

• Example: app.UseMiddle...read more

Both $.post and $.ajax are methods in jQuery used for making AJAX requests, but $.ajax is more versatile and customizable.

• Both $.post and $.ajax are used for making AJAX requests in jQuery.

• $.post is a shorthand method for $.ajax with predefined settings for POST requests.

• $.ajax is more versatile and customizable, allowing for different types of requests and more options.

• Example: $.post('example.php', {data: 'example'}, function(response) { console.log(response); });

• Example: $...read more

Entity Framework is an ORM framework for .NET developers to work with databases using objects instead of SQL queries.

• Entity Framework allows developers to work with databases using object-oriented programming.

• It provides a set of APIs to perform CRUD operations on database entities.

• EF generates SQL queries based on LINQ queries written in C#.

• It supports code-first, database-first, and model-first approaches for database design.

• EF simplifies data access and reduces the amount ...read more