20+ Forret India Interview Questions and Answers

Tools for continuous integration include Jenkins, Travis CI, CircleCI, GitLab CI/CD, and Bamboo.

• Jenkins is a popular open-source tool for continuous integration and delivery

• Travis CI is a cloud-based continuous integration platform

• CircleCI is a cloud-based continuous integration and delivery platform

• GitLab CI/CD is a built-in continuous integration and delivery tool in GitLab

• Bamboo is a continuous integration and deployment tool from Atlassian

Authentication and authorization in Angular can be implemented using Angular's built-in features and third-party libraries.

• Use Angular's HttpClient to send authentication requests to a server

• Implement guards to restrict access to certain routes based on user roles

• Utilize JWT tokens for secure authentication and authorization

• Consider using libraries like Angular JWT for easier token management

Communication between different components is achieved through various methods like props drilling, context API, event emitters, and state management libraries.

• Props drilling: Passing data from parent to child components through props.

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

• Event emitters: Emitting events from one component and listening to them in another component.

• State management librarie...read more

Yes, I have used Stream and Filters in Java for processing collections.

• Used Stream to perform operations on collections in a functional style

• Used Filters to apply conditions and filter elements in a collection

• Example: stream.filter(x -> x > 5).forEach(System.out::println)

Handling load for a distributed system involves load balancing, scaling, caching, and monitoring.

• Implement load balancing to evenly distribute incoming traffic across multiple servers.

• Scale the system by adding more servers or resources to handle increased load.

• Utilize caching to store frequently accessed data and reduce the load on the backend.

• Monitor system performance and adjust resources as needed to maintain optimal performance.

• Examples: Using a load balancer like Nginx ...read more

Lazy loading in Angular is a technique used to load modules only when they are needed.

• Lazy loading is achieved by using the loadChildren property in the route configuration.

• Lazy loaded modules are loaded asynchronously when the user navigates to the corresponding route.

• Lazy loading helps improve the initial loading time of the application by only loading necessary modules on demand.

GitHub is a platform for version control and collaboration, clone repository is copying a repository, issue faced in production is a problem occurring in the live environment, process followed in last company is the steps taken to address issues.

• GitHub is a web-based platform for version control using Git

• Cloning a repository means making a copy of it on your local machine

• Issues faced in production refer to problems occurring in the live environment

• Process followed in last com...read more

Various channels for sourcing include job boards, social media, employee referrals, recruitment agencies, and networking events.

• Job boards such as Indeed, Glassdoor, and LinkedIn are commonly used for posting job openings and attracting candidates.

• Social media platforms like Facebook, Twitter, and Instagram can be utilized for promoting job opportunities and engaging with potential candidates.

• Employee referrals involve current employees recommending candidates from their netw...read more

Various metrics used in recruitment include time to fill, cost per hire, quality of hire, and retention rate.

• Time to fill: the number of days it takes to fill a job opening from the time it is posted

• Cost per hire: the total cost incurred to fill a position, including advertising, agency fees, and recruiter salaries

• Quality of hire: the performance and tenure of new hires compared to their peers

• Retention rate: the percentage of employees who stay with the company for a certain ...read more

OOPS concepts are the principles of Object-Oriented Programming that help in designing and implementing software systems.

• Encapsulation - bundling of data and methods that operate on that data

• Inheritance - ability of a class to inherit properties and methods from a parent class

• Polymorphism - ability of objects to take on multiple forms or behaviors

• Abstraction - hiding of complex implementation details and providing a simplified interface

• Examples: Java, C++, Python

DevOps benefits include faster delivery, improved collaboration, increased efficiency, and better quality.

• Faster time-to-market for software releases

• Improved collaboration between development and operations teams

• Increased efficiency through automation and continuous delivery

• Better quality through continuous testing and monitoring

• Reduced risk of errors and downtime

• Improved customer satisfaction and loyalty

• Cost savings through streamlined processes and reduced waste

MVC routing and filters in .NET

• Routing maps URLs to controller actions

• Filters are used to add pre/post processing logic to controller actions

• Filters can be applied globally or to specific actions/controllers

• Examples of filters include authorization, caching, and exception handling

I have previously used Greenhouse and Lever as ATS platforms.

• Greenhouse

• Lever

Abstraction is a fundamental concept in OOPS that allows hiding implementation details and focusing on essential features.

• Abstraction is the process of identifying essential features and ignoring the rest.

• It allows creating abstract classes and interfaces that can be implemented by concrete classes.

• Abstraction helps in achieving encapsulation and modularity in software design.

• Examples of abstraction include abstract classes, interfaces, and inheritance.

• Abstraction is one of t...read more

Parameterize refers to the process of defining parameters or variables in a system or program.

• Parameterizing allows for greater flexibility and customization in a system or program.

• It can be used in various fields such as engineering, finance, and computer science.

• For example, in a computer program, parameterizing can allow the user to input values for certain variables, making the program more adaptable to different scenarios.

Spring Boot is a framework that simplifies the development of Java applications by providing production-ready features out of the box.

• Spring Boot eliminates the need for manual configuration by providing defaults for most settings.

• It allows developers to create stand-alone, production-grade Spring-based Applications.

• Spring Boot includes embedded servers like Tomcat, Jetty, or Undertow, making it easy to deploy applications.

• It offers a wide range of plugins to enhance producti...read more

The back out ratio is the percentage of candidates who accept a job offer but later withdraw or back out before starting the job.

• Back out ratio is calculated by dividing the number of candidates who back out by the total number of candidates who accepted the job offer.

• A high back out ratio can indicate issues with the recruitment process or the job itself.

• Employers may track the back out ratio to identify trends and make improvements in their hiring process.

• For example, if 5 ...read more

Middlewares are software components that act as a bridge between different applications or systems, allowing them to communicate and share data.

• Middlewares help in handling requests, responses, and processing data between different layers of an application.

• They can be used for authentication, logging, error handling, and other common functionalities.

• Examples include Express.js middleware in Node.js applications, Django middleware in Python web frameworks, and Redux middleware...read more

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

• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without affecting the functionality.

• I - Interface Segregation ...read more

Interceptors are used in software development to intercept and manipulate HTTP requests and responses.

• Interceptors can be used for logging, authentication, error handling, and modifying requests/responses.

• In Angular, interceptors can be used to add headers to HTTP requests, handle errors globally, and cache responses.

• In Spring Boot, interceptors can be used to log requests, validate input, and handle exceptions.

• Interceptors are commonly used in web development to centralize a...read more

Java 8 introduced several new features such as lambda expressions, functional interfaces, streams, and default methods.

• Lambda expressions allow you to pass functionality as an argument to a method.

• Functional interfaces have a single abstract method and can be used with lambda expressions.

• Streams provide a way to process collections of objects in a functional style.

• Default methods allow interfaces to have method implementations.

• Example: Using lambda expressions to iterate over...read more

Fetch data from API to display array list of strings

• Use fetch() method to retrieve data from API

• Parse the response data using JSON.parse()

• Loop through the array and create a list element for each item

• Append the list elements to the DOM

Angular uses Zone.js for change detection mechanism to track changes in the application and update the view accordingly.

• Angular uses Zone.js for change detection mechanism

• Zone.js monkey patches async operations to trigger change detection

• Change detection can be triggered manually using ChangeDetectorRef