I gave inteview in TechMojo and where asked following questions which i remembered.

1. What is Default method in Interface
2. What is Static keyword
3. what is messaging queue in system design
4. check weather target sum conatin in given array
5. find the frequency of each character in string
6. implement merge sort
7. query to find 3rd student name based on marks from student table where name and marks given
8. what is database caching