Capita Back Office Executive Interview Questions and Answers

Q1. Latest project explanation with application architecture, tech stack used. Business logic implemented
Ans. 
Developed a web application for online shopping with microservices architecture using Node.js, Express, MongoDB, and React.
• Implemented microservices architecture to improve scalability and maintainability

• Used Node.js and Express for backend development

• Utilized MongoDB for database management

• Implemented React for frontend development

• Implemented business logic for user authentication, product management, and order proces
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Q2. Create an api based on your latest project with coding standards, SOLID principles (need to code in the laptop provided) interviewer assess the code.
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Q3. What are the design patterns you have used and explain them within your project context
Ans. 
I have used the Singleton, Factory, and Observer design patterns in my projects.
• Singleton pattern: Used to ensure a class has only one instance and provides a global point of access to it. For example, I implemented a Logger class as a Singleton to manage logging throughout the application.

• Factory pattern: Used to create objects without specifying the exact class of object that will be created. For instance, I used a F...read more
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Q4. Write linq queries to get order id and list of products (based on latest project)
Ans. 
Use LINQ queries to retrieve order id and list of products based on latest project.
• Use OrderByDescending to get the latest project first

• Join Order and Product tables on OrderId

• Select OrderId and list of Products
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Q5. Write sql query to get 2 nd largest salary
Ans. 
Use SQL query with ORDER BY and LIMIT to get 2nd largest salary.
• Use SELECT statement to retrieve salary column

• Use ORDER BY clause to sort salaries in descending order

• Use LIMIT 1,1 to get the second row
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Q6. Web apps/ api security, performance, unit testing, code review and authentication/authorization related discussions
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Q7. Generic class, generic methods related questions and write code in the board
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Q1. Experience, relevant experience, current company related details
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Q2. Salary discussions/negotiations
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Q1. Write MySQL query to find employee with 2nd Highest salary
Ans. 
Use MySQL query with ORDER BY and LIMIT to find employee with 2nd highest salary.
• Use ORDER BY salary DESC to sort salaries in descending order

• Use LIMIT 1,1 to skip the highest salary and get the second highest salary
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Q2. What is branch in git
Ans. 
A branch in git is a separate line of development that allows you to work on features or fixes without affecting the main codebase.
• Branches allow for parallel development

• They can be created, switched between, merged, and deleted

• Common branches include master, develop, feature branches, and release branches
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Logical reasoning and typing test

Q1. Describe yourself, random questions about current affairs, what will you do on a very difficult day such as " its raining but you have to come to office."
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