Acqueon Technologies Interview Questions and Answers

Yes, I have experience in .NET Core + Angular.

• I have worked on multiple projects using .NET Core for backend development.

• I have also developed front-end applications using Angular framework.

• I am familiar with integrating .NET Core APIs with Angular front-end.

• I have experience in building responsive and dynamic web applications using this technology stack.

Looking for new challenges and opportunities for growth.

• Seeking new challenges to continue learning and growing professionally

• Interested in working on different projects and technologies

• Want to explore new opportunities for career advancement

The architecture of my current project is based on microservices and utilizes a combination of RESTful APIs and message queues.

• Utilizes microservices architecture

• Uses RESTful APIs for communication between services

• Incorporates message queues for asynchronous communication

• Each microservice is responsible for a specific domain or functionality

• Uses Docker containers for deployment

Multithreading allows multiple threads to run concurrently, Async and Await keywords are used in asynchronous programming to simplify handling of asynchronous operations.

• Multithreading allows multiple threads to run concurrently, improving performance by utilizing multiple CPU cores.

• Async and Await keywords are used in asynchronous programming in C# to simplify handling of asynchronous operations.

• Async keyword is used ...read more

I used a code-first approach with EF Core in my project.

• Implemented entity classes with relationships using Fluent API

• Generated database schema from entity classes using migrations

• Utilized LINQ queries for data retrieval and manipulation

First() returns the first element in a sequence, while FirstOrDefault() returns the first element or a default value if no element is found.

• First() throws an exception if no element is found, while FirstOrDefault() returns the default value for the type (null for reference types, 0 for numeric types, etc.)

• Use First() when you expect the sequence to always have at least one element, and FirstOrDefault() when the sequenc...read more

OAuth is an open standard for access delegation, commonly used for enabling secure authorization between applications.

• OAuth allows a user to grant a third-party application access to their resources without sharing their credentials.

• It involves the exchange of tokens between the client, resource server, and authorization server.

• OAuth 2.0 is the current version and uses access tokens and refresh tokens for authorization...read more

Configure Anonymous authentication for .NET Core Web API

• In Startup.cs, add services.AddAuthentication() and services.AddAuthorization() in ConfigureServices method

• Use services.AddAuthentication().AddScheme<AuthenticationSchemeOptions, CustomAuthenticationHandler>("CustomScheme", null) to add a custom authentication scheme

• In Configure method, use app.UseAuthentication() and app.UseAuthorization() to enable authent...read more

Algorithm to calculate minimum number of meeting rooms needed for a given time slot

• Sort the meetings by start time

• Initialize a priority queue to keep track of end times of meetings

• Iterate through the meetings and check if the current meeting overlaps with any ongoing meetings in the priority queue

• If there is an overlap, increment the count of meeting rooms needed

• If there is no overlap, update the end time of the ongoin

Our application is a web-based project management tool that helps teams collaborate and track progress on tasks.

• Users can create projects and assign tasks to team members.

• Tasks can have due dates, priorities, and attachments.

• Team members can comment on tasks and mark them as complete.

• The application provides a dashboard for tracking project progress.

• Integration with third-party tools like Slack and Google Drive.

Angular component life cycle hooks are methods that allow you to tap into the lifecycle of a component, from creation to destruction.

• ngOnChanges: Called when an input property changes

• ngOnInit: Called once the component is initialized

• ngDoCheck: Called during every change detection run

• ngAfterContentInit: Called after content (ng-content) has been projected into the component

• ngAfterContentChecked: Called after every check...read more

NgRx is a state management library for Angular applications that uses actions, effects, state, and a store.

• NgRx uses actions to describe unique events that occur in the application.

• Effects are used to handle side effects such as asynchronous operations like HTTP requests.

• State represents the current state of the application and is stored in a centralized store.

• The store is a single source of truth for the application's...read more

Redux DevTools

• Install Redux DevTools Chrome extension

• Import StoreDevtoolsModule.instrument() in AppModule

• Access Redux DevTools panel in Chrome DevTools to debug state changes

NgRx was used in the application to manage state in a predictable and centralized way.

• NgRx helps in managing complex state in Angular applications

• It provides a centralized store for application state

• Facilitates predictable state management through actions, reducers, and effects

Yes, I have implemented a service on cloud using AWS Lambda and it interacts with an application in a physical VM through API calls.

• Implemented a serverless service using AWS Lambda

• Exposed APIs for the service

• Configured the physical VM application to make API calls to the cloud service

• Ensured proper authentication and authorization mechanisms for secure communication

Dockerization is the process of creating, deploying, and running applications in containers.

• Dockerization allows for easy packaging of applications and their dependencies into containers.

• Containers are lightweight, portable, and isolated environments that can run on any system with Docker installed.

• Docker images are used to create containers, which can be easily shared and deployed across different environments.

• Docker ...read more