Virtusa Consulting Services Interview Questions, Process, and Tips

Q1. Selenium related questions
Add your answer
Q2. Java related questions
Add your answer

Q1. Types of Promises
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.

• Promises can be created using the Promise constructor or by using async/await syntax.
Answered by AI
Add your answer
Q2. Difference between useState and useEffect
Ans. 
useState is used to manage state in functional components, while useEffect is used to perform side effects in functional components.
• useState is used to declare state variables in functional components.

• useEffect is used to perform side effects in functional components, such as data fetching, subscriptions, or manually changing the DOM.

• useState does not trigger re-renders, while useEffect can be used to trigger re-render...read more
Answered by AI
Add your answer
Q3. What is Callback hell
Ans. 
Callback hell is a situation where multiple nested callbacks make the code difficult to read and maintain.
• Occurs when multiple asynchronous operations are nested within each other

• Leads to deeply nested code structure which is hard to understand

• Can be avoided by using Promises, async/await, or modularizing code
Answered by AI
Add your answer
Q4. Difference between traditional function and arrow function
Ans. 
Traditional functions are defined using the function keyword, while arrow functions are defined using a concise syntax with =>.
• Traditional functions are hoisted, while arrow functions are not.

• Arrow functions do not have their own 'this' keyword, they inherit it from the parent scope.

• Arrow functions are more concise and easier to read compared to traditional functions.

• Traditional functions are better for methods in obje...read more
Answered by AI
Add your answer
Q5. Usecase to create counter in react
Ans. 
Creating a counter in React to increment and decrement a value.
• Create a state variable to store the count value

• Use setState to update the count value

• Render the count value in the component

• Add buttons to increment and decrement the count value
Answered by AI
Add your answer
Q6. Program to find frequency of letters in a string
Ans. 
Program to find frequency of letters in a string
• Create an object to store the frequency of each letter

• Loop through the string and increment the count of each letter in the object

• Convert the object into an array of strings with letter and frequency pairs
Answered by AI
Add your answer
Q7. Program to find if substring is present in a given string without using predefined functions
Ans. 
Iterate through the given string to check if the substring is present.
• Iterate through the given string and check if each character matches the first character of the substring.

• If a match is found, check the subsequent characters to see if they form the substring.

• Return true if the entire substring is found within the given string, otherwise return false.
Answered by AI
Add your answer

First round was mcq. It was difficult.

2 problems to be solved of any language of our choice in 1 hour time.

Q1. They asked questions from whatever in resume.
Add your answer
Q2. Multithreading in Java
Ans. 
Multithreading in Java allows multiple threads to execute concurrently, improving performance and responsiveness.
• Multithreading is achieved in Java by extending the Thread class or implementing the Runnable interface.

• Threads can be started using the start() method and controlled using methods like join(), sleep(), and interrupt().

• Synchronization is important to prevent race conditions and ensure thread safety, which ca...read more
Answered by AI
Add your answer

Q1. ES6 features and promises
Add your answer

Q1. What are the core responsibilities of PMO?
Ans. 
Core responsibilities of PMO include project governance, portfolio management, resource management, and process improvement.
• Project governance to ensure projects align with organizational goals and standards

• Portfolio management to prioritize projects based on strategic objectives

• Resource management to allocate resources effectively across projects

• Process improvement to enhance project delivery and efficiency
Answered by AI
Add your answer
Q2. What do you understand by SOW?
Ans. 
SOW stands for Statement of Work, a document that defines project-specific activities, deliverables, and timelines.
• SOW outlines project scope, objectives, and responsibilities of all parties involved.

• It includes detailed descriptions of project deliverables, acceptance criteria, and milestones.

• SOW also specifies project timeline, budget, resources, and any assumptions or constraints.

• It serves as a contract between the ...read more
Answered by AI
Add your answer

Q1. Technical question about OBIEE
Add your answer
Q2. Technical Questions about OBIEE
Add your answer

How much salary will you take