iLink Digital Interview Questions and Answers

manage and unmanage are not standard terms in C++

• There are no standard terms or concepts called 'manage' and 'unmanage' in C++

• These terms might be specific to a particular framework or library

• Without more context, it is difficult to provide a specific answer

C is a procedural programming language, while C++ is an extension of C with object-oriented programming features.

• C is a procedural language, while C++ supports both procedural and object-oriented programming paradigms.

• C++ has additional features like classes, objects, inheritance, and polymorphism.

• C++ supports exception handling and templates, which are not available in C.

• C++ has a standard template library (STL) that ...read more

OOP is needed for modular and reusable code. Encapsulation hides implementation details. Abstraction simplifies complex systems. Polymorphism allows objects to take on multiple forms.

• OOP promotes code reusability and modularity

• Encapsulation hides implementation details and protects data

• Abstraction simplifies complex systems by focusing on essential features

• Polymorphism allows objects to be used in multiple ways

• Types of...read more

A pure virtual function is a function declared in a base class that has no implementation and must be overridden in derived classes.

• Pure virtual functions are used to create abstract classes, which cannot be instantiated.

• They provide a common interface for derived classes to implement their own functionality.

• An example of a pure virtual function is a 'draw' function in a base 'Shape' class, which must be implemented by...read more

Pass by reference and pass by pointer are both ways to pass data to a function, but they differ in how they access and modify the data.

• Pass by reference uses a reference to the original variable, allowing direct access and modification.

• Pass by pointer uses a pointer to the memory address of the variable, requiring dereferencing to access and modify the data.

• Pass by reference is generally considered safer and more conve...read more

A DLL (Dynamic Link Library) is a file containing code and data that can be used by multiple programs simultaneously.

• To create a DLL, you need to write the code in a programming language like C++ or C#.

• Compile the code into an object file and then link it with a DLL linker to create the DLL file.

• DLLs can contain functions, classes, variables, and resources that can be accessed by other programs.

• DLLs provide code reusab...read more

Thread synchronization is the coordination of multiple threads to ensure they access shared resources in a controlled manner.

• Thread synchronization prevents race conditions and data inconsistencies.

• Semaphores are synchronization primitives used to control access to resources.

• Critical sections are code segments that must be executed atomically.

• A common threading problem is the producer-consumer problem.

• Synchronization m...read more

Middleware acts as a bridge between different software applications, enabling communication and data management.

• Facilitates communication between client and server applications, e.g., REST APIs.

• Handles data management and integration, such as database middleware like Hibernate.

• Provides authentication and authorization services, e.g., OAuth middleware.

• Enables message queuing and processing, like RabbitMQ or Apache Kafka...read more

Filters in .Net are used to manipulate data before it is displayed or processed further.

• Filters can be used for data validation, formatting, or transformation.

• Filters are commonly used in ASP.NET MVC for tasks like authentication, authorization, logging, etc.

• Filters can be applied globally to all controllers or specific to individual actions.

• Examples of filters in .Net include AuthorizationFilter, ActionFilter, ResultF...read more

CROS Policy is a policy that allows employees to work from a different location than their usual workplace.

• CROS stands for Company Remote Office Setup.

• The purpose of CROS Policy is to provide flexibility to employees in terms of work location.

• It helps in improving work-life balance and increasing employee satisfaction.

• Examples of CROS Policy include allowing employees to work from home or from a co-working space.