NeoSOFT Interview Questions, Process, and Tips for Experienced

The == operator is used to compare references in Java, while the .equals() method is used to compare values. Method overloading is when multiple methods have the same name but different parameters.

• Use == to compare references, use .equals() to compare values

• Method overloading allows multiple methods with the same name but different parameters

• Example: String str1 = new String("hello"); String str2 = new String("hello");...read more

A linked list is a data structure where each element points to the next element in the list.

• Linked list is made up of nodes, each containing data and a reference to the next node.

• Insertion and deletion are efficient in linked lists compared to arrays.

• Example: Node 1 -> Node 2 -> Node 3 -> null

Authentication verifies the identity of a user, while authorization determines what actions they can perform.

• Authentication is the process of verifying the identity of a user or system.

• It ensures that the user is who they claim to be.

• Common authentication methods include passwords, biometrics, and two-factor authentication.

• Authorization determines what actions a user or system is allowed to perform.

• It is based on the a...read more

Abstraction is the process of hiding unnecessary details, while encapsulation is the bundling of data and methods into a single unit.

• Abstraction focuses on the 'what' rather than the 'how'

• Abstraction allows us to create simplified models of complex systems

• Encapsulation ensures data and methods are kept together and hidden from external access

• Encapsulation provides data protection and code organization

• Example of abstrac...read more

ViewData and ViewBag are both used to pass data from controller to view in ASP.NET MVC, but ViewData uses dictionary while ViewBag uses dynamic properties.

• ViewData is a dictionary object that stores data using key-value pairs.

• ViewBag is a dynamic property that allows you to store and retrieve data.

• ViewData requires typecasting while ViewBag does not.

• ViewData is a bit slower than ViewBag due to typecasting.

• Example: View

Design patterns are reusable solutions to common problems in software design.

• Design patterns provide proven solutions to recurring design problems.

• They promote code reusability, maintainability, and scalability.

• Examples of design patterns include Singleton, Observer, and Factory.

• Design patterns can be categorized into three types: creational, structural, and behavioral.

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 abstra...read more

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 performanc...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 Star...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 fina...read more

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...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...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

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'},...read more