PTC Inc. Interview Experience for Internship (Off-Campus)

First Round:

Aptitude + Technical MCQ(Java, C/C++, SQL)

There was no coding round.

Second Round :

Technical Interview in the company (Face to Face)

1. Tell me about yourself.
2. What are your hobbies?
3. Questions on the project(REST API, JWT Authentication).
4. JavaScript Promises.
5. Write a code to create a server in NodeJS.
6. SQL Query to find the second-highest salary in the table.
7. Write a code to copy a string using recursion, and check whether strings are anagrams or valid parentheses.
8. Recursion types
9. Puzzles: Puzzle 1, Puzzle 2.
10. Java Collection questions (HashMap, Set), its implementation.
11. Some OOPS questions (Inheritance, Polymorphism, interface)
12. Questions on Static keyword, exception handling
13. Write a code for multiple inheritance using Interface.