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