In this video, you will watch about how to crack the Infosys interview of technical for any Job post by these top commonly asked questions in Infosys Company so plz watch the video.
Here are 30 commonly asked interview questions at Infosys, along with their sample answers. These questions are divided into technical and HR categories to cover various aspects of the interview process.
1. Explain the OOP concepts.
- Answer: Object-Oriented Programming (OOP) is based on four main principles: Encapsulation (bundling data and methods), Inheritance (acquiring properties from a parent class), Polymorphism (taking many forms, such as method overloading and overriding), and Abstraction (hiding complex implementation details and showing only essential features).
2. What is the difference between C and C++?
- Answer: C is a procedural programming language, whereas C++ supports both procedural and object-oriented programming paradigms. C++ includes features like classes, objects, inheritance, polymorphism, and encapsulation, which are not available in C.
3. What are pointers in C?
- Answer: Pointers are variables that store the memory address of another variable. They are used for dynamic memory allocation, arrays, and functions to enhance performance and memory management.
4. Explain the concept of Inheritance in Java.
- Answer: Inheritance allows a class (subclass) to inherit fields and methods from another class (superclass). It promotes code reusability and establishes a hierarchical relationship between classes.
5. What is a Data Structure?
- Answer: A data structure is a way of organizing and storing data so that it can be accessed and modified efficiently. Common data structures include arrays, linked lists, stacks, queues, trees, and graphs.
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