R A Consulting Services Zambia Limited Interview Questions and Answers

Q1. How could you use AI in a company?
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Q2. Tell me about your past experience.
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Few maths , few English , few problem solving

Q1. Few details about data Science regressions and all
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Q2. Write pseudo code in python
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Q1. What is the code for implementing middleware in .NET?
Ans. 
Middleware in .NET can be implemented using the 'UseMiddleware' method in the Startup class.
• Use the 'UseMiddleware' method in the Configure method of the Startup class to add middleware in the request pipeline.

• Create a custom middleware class that implements the 'IMiddleware' interface.

• Register the custom middleware class in the ConfigureServices method of the Startup class.
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Q2. What are the common exceptions encountered in middleware?
Ans. 
Common exceptions encountered in middleware include timeout errors, connection errors, and invalid input errors.
• Timeout errors occur when a request takes too long to process.

• Connection errors happen when there is a problem connecting to a database or external service.

• Invalid input errors occur when the data provided does not meet the expected format or criteria.
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Q3. What is change detection in Angular?
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Change detection in Angular is the process of detecting changes in the application state and updating the view accordingly.
• Angular uses change detection to keep the UI in sync with the application state.

• It compares the current state of the application with the previous state to determine what has changed.

• If a change is detected, Angular updates the view to reflect the new state.

• Change detection can be triggered by user...read more
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Q4. What is the use of the Subject in Angular?
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Subject in Angular is used for multicasting observables to multiple subscribers.
• Subject is a type of Observable that allows values to be multicasted to multiple Observers.

• It acts as both an Observable and an Observer.

• Subjects are hot Observables, meaning they start emitting values immediately upon creation.

• Example: const subject = new Subject(); subject.next(1); subject.subscribe(value => console.log(value)); // Out
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Hackerrank react test on
1. MCQ- HTML,CSS, Javscript, Web fundamentals
2. Coding - React Context API code

Q1. React and Javascript basics
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Q2. React Design Pattern and Security handling
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Q3. HTML and CSS Fundamentals
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Q1. What is Docker,image vs containers,mutistage,terraformstatebackend
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Q2. What is diff cloud formation vs terraform, release management like blue green etc.
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Q1. Explain oops concepts
Ans. 
OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.
• OOP focuses on creating objects that interact with each other to solve problems.

• Encapsulation: Objects can hide their internal state and require interactions through defined interfaces.

• Inheritance: Objects can inherit attributes and methods from other objects.

• Polymorphism: Objec...read more
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Q2. Write a code on simple one.
Ans. 
Code a simple one
• Use a basic programming language like Python or JavaScript

• Create an array of strings

• Print the array elements
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Q3. Explain about your projects
Ans. 
I have worked on various projects including a web application for tracking inventory and a mobile app for managing tasks.
• Developed a web application using React.js for tracking inventory levels and generating reports

• Created a mobile app using Flutter for managing tasks and setting reminders

• Implemented RESTful APIs for communication between frontend and backend systems
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Q1. Tell me about yourself
Ans. 
I am a software developer with 5 years of experience in Java, Python, and SQL.
• 5 years of experience in Java, Python, and SQL

• Strong problem-solving skills

• Experience working in Agile development environment

• Passionate about learning new technologies
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Q2. Why msg global solutions
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I want to work at msg global solutions because of their reputation for innovative solutions and collaborative work environment.
• I am impressed by msg global solutions' track record of delivering cutting-edge software solutions to clients.

• I am excited about the opportunity to work with a team of talented developers and collaborate on challenging projects.

• I value the emphasis msg global solutions places on professional de...read more
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Q1. I am interested but I am fasher
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Q2. I am interested but I am fasher
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Asked questions based on arrays

Q1. Questions related sortings
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Q2. Questions related to projects
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Q1. Managerial questions
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Q1. React Hooks and Project experience
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Q1. Performance Optimization Techniques
Ans. 
Performance optimization techniques for React JS frontend development
• Use React.memo for optimizing functional components

• Avoid unnecessary re-renders by using shouldComponentUpdate or PureComponent for class components

• Implement code splitting to reduce initial load time

• Use lazy loading for components that are not immediately needed

• Optimize images and assets for faster loading times

• Minimize the use of inline styles and u...read more
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Q2. Lazy Loading and other ques related to that
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Q1. General HR Interview
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