Petronas SAP BI Consultant Interview Questions and Answers

Recursion is a process in which a function calls itself. Inheritance is a mechanism in OOP where a class inherits properties of another class. Heap is a region of memory used for dynamic memory allocation.

• Recursion can be used to solve problems that can be broken down into smaller sub-problems.

• Inheritance allows for code reuse and helps in creating a hierarchy of classes.

• Heap is used for dynamic memory allocation in la...read more

There are three types of machine learning: supervised, unsupervised, and reinforcement learning.

• Supervised learning involves labeled data and predicting outcomes based on that data.

• Unsupervised learning involves finding patterns in unlabeled data.

• Reinforcement learning involves an agent learning to make decisions based on rewards and punishments.

• Examples of supervised learning include image classification and spam filt...read more

OOPs stands for Object-Oriented Programming. It is a programming paradigm that uses objects to design applications.

• OOPs is based on the concept of classes and objects

• It focuses on encapsulation, inheritance, and polymorphism

• It helps in creating modular, reusable, and maintainable code

• Examples of OOPs languages are Java, C++, Python, etc.

SDLC stands for Software Development Life Cycle, a process used to design, develop, and maintain software.

• SDLC is a structured approach to software development

• It involves several phases such as planning, analysis, design, implementation, testing, and maintenance

• Each phase has its own set of activities and deliverables

• SDLC helps ensure that software is developed efficiently, on time, and within budget

• Examples of SDLC mo