My TCS Prime Interview Experience

Round 1: Panel Interview

Questions:

• Introduction: I gave a brief introduction, mentioning my skills like React and Bootstrap.
• Technical Questions:
  • What is React? What are hooks?
  • What is Bootstrap?
  • DSA problem: Transpose a matrix.
    • I provided two solutions (create a new matrix and use swapping), and the manager was satisfied with the second approach.
  • What is normalization?
  • Why MongoDB over SQL (based on my project)?
• HR Questions:
  • Preferred work location and time shifts (day/night).
  • If offered Ninja, would I join?

Round 2: Panel Interview

Questions:

• Introduction: I introduced myself again.
• Technical Questions:
  • Sorting algorithms: Heap Sort, Quick Sort, Merge Sort, and their differences.
  • Graph algorithms: Dijkstra’s algorithm, Prim’s vs. Kruskal’s algorithms.
  • Bootstrap: Definition and use.
  • DSA problem: Find all prime numbers between 1 to N.
    • I wrote the code on paper and explained it.
• Math Question:
  • Solve x^2 - y^2 = 101 then find x > 0 and y > 0.
    • I solved it using factorization and logic, and the manager was impressed.
• DSA Conceptual Problem:
  • Trapping Rain Water: Explained the approach theoretically.
• General Knowledge:
  • What is BrahMos Missile? Why is it named BrahMos Missile?
• Current Affairs:
  • Latest TCS news: Work from office policy.
  • Opinion: Work from home vs. office.
• HR Questions:
  • Why TCS?
  • Location preference (Bangalore) and their follow-up on traffic and flexibility with Chennai.
  • If Ninja was offered, would I join?
  • What would I do if I didn’t receive an offer from TCS?