Aptiv Advanced Software Developer Interview Questions and Answers

A Watchdog timer is a hardware or software mechanism that automatically resets or restarts a device if it stops responding or functioning properly.

• Watchdog timer is used to prevent system crashes or freezes by monitoring the system and resetting it if necessary.

• It is commonly used in embedded systems, where reliability is crucial.

• The timer needs to be periodically reset by the software to prevent the system from resett...read more

A compiler is a software program that translates code written in a high-level programming language into machine code.

• Converts high-level code to machine code

• Checks for syntax errors

• Optimizes code for better performance

• Examples: GCC, Clang, Visual C++

Volatile memory is temporary memory that loses its data when power is turned off.

• Volatile memory requires constant power to retain data

• Examples include RAM (Random Access Memory) and cache memory

• Data stored in volatile memory is lost when the device is turned off

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