Emertxe Information Technologies Internship Trainee Interview Questions and Answers

Q1. Difference between absolute xpath and relative xpath
Ans. 
Absolute xpath specifies the complete path from the root element to the desired element, while relative xpath specifies the path relative to the current element.
• Absolute xpath starts with a single forward slash (/) and is more specific.

• Relative xpath starts with a double forward slash (//) and is more flexible.

• Absolute xpath is more prone to breaking if the structure of the page changes.

• Relative xpath is easier to main...read more
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Basics of C language

Q1. JavaScript coding
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Q2. C language Coding questions
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Q1. More than technology,a senior recruiter asks where you stay which gali you stay,which temple is near by,what your husband do,getting into more personal and final he will ask your janam kundali and tell you...read more
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Q1. Senior recruiter will ask more personal questions
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Q1. What is the use of preventpefault() in React?
Ans. 
preventDefault() in React prevents the default action of an event from occurring, allowing for custom behavior.
• Used in event handlers to stop default browser actions, e.g., preventing form submission.

• Example: <form onSubmit={(e) => { e.preventDefault(); handleSubmit(); }}>...</form>

• Useful for handling custom validation before submission.

• Can be applied to links to prevent navigation: <a href='#' onClic...read more
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Q2. What is Middleware?
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Q3. Why is server.js used?
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server.js is a crucial file in Node.js applications, managing server configurations and routing requests.
• Acts as the entry point for a Node.js application, initializing the server.

• Handles incoming requests and routes them to appropriate handlers.

• Configures middleware for processing requests, such as body parsing or logging.

• Can define API endpoints, e.g., app.get('/api/users', (req, res) => { ... });

• Facilitates conne...read more
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Q4. How is Tailwind CSS better than normal (traditional) CSS?
Ans. 
Tailwind CSS offers utility-first styling, promoting faster development and easier maintenance compared to traditional CSS.
• Utility-first approach: Tailwind provides utility classes like 'bg-blue-500' for background color, reducing the need for custom CSS.

• Faster prototyping: With pre-defined classes, developers can quickly build layouts without writing extensive CSS.

• Responsive design: Tailwind includes responsive utilit...read more
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Q1. What is the difference between supervised and unsupervised learning
Ans. 
Supervised learning uses labeled data for training, while unsupervised learning identifies patterns in unlabeled data.
• Supervised learning requires labeled datasets, e.g., predicting house prices based on features like size and location.

• Unsupervised learning works with unlabeled data, e.g., clustering customers based on purchasing behavior.

• In supervised learning, the model is trained to minimize error between predicted ...read more
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Q2. Explain a project where you used python for data analysis
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Q1. Siem, kali linux
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Q2. Wazhu, networking
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Q1. Can you explain the SDLC?
Ans. 
The SDLC is a structured process for developing software, ensuring quality and efficiency throughout the project lifecycle.
• 1. Requirements Gathering: Identify what the software needs to do. Example: User interviews to gather feature requests.

• 2. Design: Create architecture and design specifications. Example: UML diagrams to visualize system components.

• 3. Implementation: Write the actual code based on design. Example: Us...read more
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Q2. How do you ensure the quality and security of your code
Ans. 
I ensure code quality and security through best practices, code reviews, testing, and security measures.
• Implement coding standards and best practices, such as using consistent naming conventions and modular design.

• Conduct regular code reviews with peers to identify potential issues and improve code quality.

• Utilize automated testing frameworks (e.g., JUnit for Java) to ensure functionality and catch bugs early.

• Incorpora...read more
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