Continental Automotive Components Moulding Operator Interview Questions and Answers

Virtual DOM is a lightweight copy of the actual DOM in React, used for efficient updates.

• Virtual DOM is a concept where a lightweight copy of the actual DOM is created in memory.

• React uses the virtual DOM to efficiently update the actual DOM when there are changes in the application.

• When changes are made to the virtual DOM, React calculates the most efficient way to update the actual DOM, minimizing performance impact.

Context API is a feature in React that allows sharing data between components without having to pass props through every level of the component tree.

• Context API provides a way to pass data through the component tree without having to pass props down manually at every level.

• It is useful for sharing global data such as themes, user authentication, or language preferences.

• Context API consists of three main parts: Provider...read more

Volatile keyword in C is used to indicate that a variable's value may change unexpectedly.

• It is used to prevent compiler optimization

• It is commonly used in embedded systems programming

• It is not a substitute for proper synchronization mechanisms

• Example: volatile int *ptr; // pointer to volatile integer

Static constructor is a special type of constructor in a class that is called only once when the class is loaded into memory.

• Static constructor is used to initialize static data members of a class.

• It is automatically called by the .NET Framework when the class is loaded.

• Static constructor does not take any parameters.

• It is used to perform any necessary initialization before any instance of the class is created.

SOLID principles are a set of five design principles that help make software designs more understandable, flexible, and maintainable.

• Single Responsibility Principle (SRP) - A class should have only one reason to change.

• Open/Closed Principle (OCP) - Software entities should be open for extension but closed for modification.

• Liskov Substitution Principle (LSP) - Objects of a superclass should be replaceable with objects o...read more

ADA levels refer to the different levels of accessibility compliance outlined in the Americans with Disabilities Act.

• ADA Level A: Basic accessibility features, such as providing alternative text for images.

• ADA Level AA: Includes Level A requirements and additional criteria, like providing captions for videos.

• ADA Level AAA: The highest level of accessibility, including features like sign language interpretation for vide