ATMECS Global Interview Questions and Answers

ngrx is a state management library for Angular applications.

• ngrx follows the Redux pattern for managing application state

• It uses actions, reducers, and selectors to manage state changes

• State changes are handled immutably to ensure predictability and maintainability

NGRX can handle large amounts of data by using lazy loading, pagination, and memoization techniques.

• Implement lazy loading to only load data when needed

• Use pagination to limit the amount of data loaded at once

• Utilize memoization to cache results and avoid unnecessary computations

NodeJS is a runtime environment that allows you to run JavaScript on the server side.

• NodeJS is built on Chrome's V8 JavaScript engine.

• It uses an event-driven, non-blocking I/O model.

• NodeJS is commonly used for building server-side applications and APIs.

• npm (Node Package Manager) is used for managing dependencies in NodeJS projects.

Used a modular architecture with Angular services, components, and modules.

• Implemented services to handle business logic and data retrieval

• Created reusable components for UI elements

• Organized code into feature modules for better maintainability

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

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

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

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

Angular performance optimization involves using best practices to improve the speed and efficiency of Angular applications. ngOnChanges is a lifecycle hook in Angular that is called when a data-bound input property value changes.

• Use trackBy function in ngFor to improve performance when rendering lists

• Lazy load modules to reduce initial load time

• Minimize the use of two-way data binding to avoid unnecessary change detect...read more

I am currently staying in XYZ city, which is my native place as well.

• Currently staying in XYZ city

• Native place is also XYZ city

I will take approximately 30 minutes to travel to the office.

• My commute time is around 30 minutes each way.

• I live 15 miles away from the office.

• I usually drive to work, but occasionally take public transportation if needed.

I have over 10 years of experience in engineering management, leading cross-functional teams to deliver successful projects.

• Led a team of engineers to develop a new product from concept to launch

• Implemented agile methodologies to improve team efficiency and project delivery

• Managed budgets and resources effectively to meet project deadlines

• Collaborated with stakeholders to ensure project requirements were met

• Provided me...read more

I studied at the University of California, Berkeley.

• Studied at the University of California, Berkeley

• Graduated with a degree in Mechanical Engineering

• Took specialized courses in robotics and automation

SOLID principles are five design principles aimed at making software designs more understandable, flexible, and maintainable.

• S - Single Responsibility Principle: A class should have one reason to change. Example: A class handling user data should not also handle logging.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification. Example: Use interfaces to add new features with...read more

State lifting is a React pattern for managing shared state between components by moving state up to a common ancestor.

• State lifting helps avoid prop drilling by centralizing state management.

• Example: If two sibling components need to share data, lift the state to their parent component.

• Use callback functions to update the lifted state from child components.

• This pattern promotes better separation of concerns and reusabi...read more

Redux is a predictable state container for JavaScript apps, enhancing state management and debugging.

• Centralized State Management: Redux maintains the application state in a single store, making it easier to manage and debug.

• Predictable State Changes: State changes in Redux are predictable due to the use of pure functions called reducers.

• Time Travel Debugging: Redux DevTools allows developers to inspect every action an...read more