TCS Interview Experience (On-Campus) Full Stack Developer

I had the chance to interview for the Full Stack Developer position at TCS (Tata Consulting Services) through an on-campus recruitment process.

• 2 hours in Center Exam. [ Jalandhar]
• It Contains Three sections time limit for every section, there is no time limit for each question.
  • Verbal Ability
  • Quantitative Ability
  • Coding
    • Question 1: Detect Cycle in Directed Graph
    • Question 2: 0 1 Knapsack Problem

• Interview Went for approximately 1 hr 30 minutes.
• It consists of Technical, Managerial, and HR Rounds.
• Technical and Manager Person are on the Google Meet and HR sits front of you, after the Technical and Managerial Questions are done HR takes the in-person interview.
• First Technical, then Managerial, and later HR.

Technical Questions

• C++
  • What is Token in C++.
  • What is Deep Copy and Shallow Copy
  • What is Difference between Call by Value and Call by Reference.
• OOPs (Object Oriented Programming)
  • Can we use a class without object.
  • Explain types of Inheritance
  • Explain Function Overloading and Operator Overloading.
• React
  • What is Virtual DOM in React
  • What are state and props
  • Which react Hook is used for only rendering when the page is loaded for the first time.
  • what happens when we run the command create-react-app.
  • The React component is rendering too slow, what might be the causes and how will you fasten it.
• Project
  • Explain about your Project.
  • Explain the JWT Authentication [ Used in Project].
  • If anyone knows the access Token, can they manipulate it and take control of application.
• Git
  • Git Command to show all branches.
• SQL
  • Given a table with transactions made by the customers, find out the customer with second highest value of average of the transactions.
• Coding
  • Shown an Algorithm and asked the time complexity of algorithm and explain

Managerial Questions

• What are your future plans.
• Discussed about my future plans of becoming entrepreneur and some follow ups
• What are your hobbies. [ Movies, books, Sports].
• What the books you read and name some of them.

HR Questions

• Do you have any offers.
• How many interviews you gave till now.
• Verified the marks in the certificates against the marks provided during registration.

For other people there are some general HR Questions, in my case there HR didn’t ask any questions.

• Not Answered Some Technical Questions.
• When asked about the future Plans said to become an entrepreneur and leave the company after 3-4 years. They are excepting long term relationship with company. This is major mistake, should have talked about the staying in company for longer time and becoming team lead.