TestVagrant Sdet Automation Test Engineer Interview Questions and Answers for Experienced

Q1. React hooks related How to use them
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Q2. About web socket real time messaging
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Q3. About react router dom
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Q1. What is supervised learing
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Supervised learning is a machine learning approach where a model is trained on labeled data to make predictions or classifications.
• Involves training a model on a dataset with input-output pairs.

• Common algorithms include linear regression, decision trees, and support vector machines.

• Used for tasks like spam detection (classifying emails) and image recognition (identifying objects in images).

• The model learns from the lab...read more
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Q2. What is mse
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Q1. Tell us about a project you've worked on using the MERN stack.
Ans. 
Developed a task management application using the MERN stack to streamline team collaboration and project tracking.
• Utilized MongoDB for database management, storing user tasks and project details.

• Implemented Express.js to create RESTful APIs for task CRUD operations.

• Used React.js for building a responsive user interface, allowing users to add, edit, and delete tasks seamlessly.

• Incorporated Node.js for server-side logic...read more
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Q2. How do you manage routes in a MERN stack application?
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Managing routes in a MERN stack involves defining API endpoints and client-side routes for seamless navigation and data handling.
• Use Express.js for backend routing: Define routes in a separate file, e.g., 'routes/user.js'.

• Implement RESTful API conventions: Use GET, POST, PUT, DELETE methods for CRUD operations.

• Utilize React Router for client-side routing: Set up routes in 'App.js' using <BrowserRouter> and <Ro...read more
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Based on my CV, they assigned me a task related to data migration.

Q1. Project reviews
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Q2. Attendance regarding
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Q1. How did you collaborate with other team members during your internships?
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Q2. Can you describe how you handled feedback from your senior developers or mentors?
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Q1. Comments on Javascript
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JavaScript is a versatile, high-level programming language primarily used for web development, enabling interactive and dynamic content.
• JavaScript is an event-driven language, allowing developers to create responsive user interfaces. Example: Handling button clicks.

• It supports object-oriented programming, enabling code reuse and modularity. Example: Creating classes and objects.

• JavaScript can manipulate the DOM, allowi...read more
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Q2. Javascript library
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Q3. Css, html, React
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