Virtusa Consulting Services Software Engineer Interview Questions, Process, and Tips

I was shortlisted by my performance in coding round. There were 3 coding questions in which 2 were basic level and one from data structures.
i have done 2 codes one basic and another one from data structures and algo so i was shortlisted for 7lpa if you do only basic questions then you will be shortlisted for 5lpa.

Q1. The round 2 was technical were I was asked some question related to java basics and they have given me a few simple coding question. they were looking for mainly java students.
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Q1. This was the final round were i was a few logic questions and some personal questions and Iam i able to work in any given location. and finally they asked do you have any questions for us?.
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Q1. What is react
Ans. 
React is a JavaScript library for building user interfaces, particularly single-page applications, using a component-based architecture.
• Developed by Facebook, React allows developers to create reusable UI components.

• It uses a virtual DOM to optimize rendering and improve performance.

• React follows a unidirectional data flow, making it easier to understand and debug.

• Components can manage their own state, allowing for dyn...read more
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Q2. Redux uses cons
Ans. 
Redux uses constants to define action types, ensuring consistency and preventing typos in action identifiers.
• Constants help avoid magic strings in action creators, e.g., 'ADD_TODO'.

• Using constants makes it easier to refactor code, as you only need to change the constant in one place.

• Constants improve readability and maintainability of the codebase.

• Example: Instead of using 'ADD_TODO' directly, define it as 'const ADD_T
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Mcqs & 2 coding problems

Q1. Explain abt your proj
Ans. 
Developed a web application for tracking personal fitness goals and progress
• Used HTML, CSS, and JavaScript for front-end development

• Implemented RESTful APIs using Node.js and Express for back-end functionality

• Utilized MongoDB for database management

• Incorporated charting libraries like Chart.js for visualizing progress data
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Q2. Explain about oops
Ans. 
Object-oriented programming paradigm that focuses on objects and classes for code organization and reusability.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (object)

• Inheritance: Ability for a class to inherit properties and behavior from another class

• Polymorphism: Ability for objects of different classes to respond to the same method call in different ways
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Q1. Why do you want to join our company
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Q2. Why did you choose ece in btech
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Q1. What performance metrics are used in Machine Learning?
Ans. 
Performance metrics in Machine Learning measure the effectiveness and efficiency of models.
• Accuracy: measures the proportion of correct predictions out of the total predictions made by the model.

• Precision: measures the proportion of true positive predictions out of all positive predictions made by the model.

• Recall: measures the proportion of true positive predictions out of all actual positive instances in the dataset.

• ...read more
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Q2. How will you improve a model once it is trained
Ans. 
After training a model, I can improve it by fine-tuning hyperparameters, increasing the size of the training dataset, or implementing ensemble methods.
• Fine-tune hyperparameters such as learning rate, batch size, and regularization strength to optimize model performance.

• Increase the size of the training dataset by collecting more data or using data augmentation techniques to improve generalization.

• Implement ensemble met...read more
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