Akra Tech Interview Questions and Answers

Q1. Please Introduce Yourself
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Q2. Can you explain the projects you have worked on
Ans. 
I have worked on various full stack projects, focusing on web applications that enhance user experience and streamline processes.
• E-commerce Platform: Developed a full-featured e-commerce site using React for the frontend and Node.js for the backend, integrating payment gateways.

• Social Media Application: Built a social media platform where users can post updates, comment, and like posts, utilizing MongoDB for data stora...read more
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Q3. Are you comfortable sharing the project
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Q4. What is your salary expectation
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Designing a page with Material UI. It gets data from an API and needs pagination, sorting and other basic things. 2 weeks time.

Q1. What is React Fragment
Ans. 
React Fragment is a feature in React that allows grouping multiple elements without adding extra nodes to the DOM.
• React Fragment is used to group multiple elements without adding extra nodes to the DOM.

• It helps in avoiding unnecessary div elements in the rendered output.

• Fragments can be used with the <> </> syntax or <React.Fragment> tag.

• They are especially useful when returning multiple elements from...read more
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Q2. What is JWT Token
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JWT Token is a JSON Web Token used for securely transmitting information between parties as a compact and self-contained way.
• JWT Token stands for JSON Web Token

• It is used for authentication and information exchange between parties

• Consists of three parts: header, payload, and signature

• Example: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2Q...read more
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Q3. How is JWT Token stored
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JWT tokens are typically stored in client-side storage such as cookies or local storage.
• JWT tokens are usually stored in client-side storage like cookies or local storage.

• Cookies are a common storage mechanism for JWT tokens as they are automatically sent with every HTTP request.

• Local storage is another option for storing JWT tokens on the client side.

• JWT tokens should be stored securely to prevent unauthorized access.
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Q4. How is API request made in Nodejs
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API requests in Node.js are made using the 'http' or 'axios' module to send HTTP requests to a server.
• Use the 'http' module to create a server and handle incoming requests.

• Use the 'axios' module to make HTTP requests to external APIs.

• Include the necessary headers, data, and options when making the request.

• Handle the response from the server or API accordingly.
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Q5. Did you use any custom middlewares
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Yes, I have used custom middlewares in my projects to handle authentication, logging, error handling, etc.
• Used custom middleware for authentication to verify user credentials before accessing protected routes

• Implemented logging middleware to log requests, responses, and errors for debugging purposes

• Created error handling middleware to catch and handle errors in a centralized way

• Customized middleware for rate limiting t...read more
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