Solitaire Infosys Interview Questions and Answers

Pipeline in Express is a series of functions that are executed in a specific order during the request-response cycle.

• Middleware functions are added to the pipeline using app.use() or app.METHOD() functions.

• Each middleware function can modify the request and response objects, or end the request-response cycle.

• Middleware functions can be used for tasks like logging, authentication, error handling, etc.

In Java, the char data type represents a single 16-bit Unicode character.

• char data type stores a single character, such as 'A' or '$'.

• char data type is 16 bits in size and can represent values from 0 to 65,535.

• char data type can also be used to store Unicode characters, allowing for internationalization support.

The code snippet will output 'Hello World!'

• The code snippet is a simple print statement that outputs the string 'Hello World!'

• There are no variables or conditions involved, so the output will always be 'Hello World!'

The dot operator is used in Java to access members of a class, such as variables and methods.

• Used to access variables and methods of a class

• Syntax: object.variable or object.method()

• Example: String str = new String(); str.length()

Abstraction focuses on hiding implementation details, while encapsulation focuses on bundling data and methods together.

• Abstraction is achieved through abstract classes and interfaces, allowing for the creation of blueprints for classes without specifying implementation details.

• Encapsulation involves bundling data (attributes) and methods (behaviors) together within a class, and controlling access to them through ...read more

Polymorphism in C++ can be implemented using function overloading, function overriding, and virtual functions.

• Use function overloading to have multiple functions with the same name but different parameters.

• Use function overriding to have a function in a derived class with the same name and parameters as a function in the base class.

• Use virtual functions to achieve runtime polymorphism by allowing a function in a b...read more

Exceptions in Python are handled using try-except blocks to catch and handle errors gracefully.

• Use try-except blocks to catch and handle exceptions in Python.

• Specify the type of exception to catch or use 'except' to catch all exceptions.

• Use 'finally' block to execute code regardless of whether an exception was raised or not.

• Reraise exceptions using 'raise' keyword within except block if needed.

• Handle specific exce...read more

ASP.NET is a web application framework developed by Microsoft.

• It allows developers to build dynamic web applications and services.

• It supports multiple programming languages such as C#, VB.NET, and F#.

• It provides a rich set of libraries and tools for building web applications.

• It includes features such as authentication, caching, and session management.

• It can be used to build web applications for desktop and mobile ...read more