Cybrilla interview questions

Mode of application : On company’s website Interview Process: Orientation Call Round 1 : Assessment : Create URL Shortener project in 7 hours Round 2 : Technical : Walk through the assessment, explain the implementation and the approach followed. Is there any more efficient way to do this? What is recursion? Write a code to reverse a String. Write a code to create a Linked List. What is the difference between equals and == ? What are different design patterns? Asked about different annotations and their application in SpringBoot. What are the different debugging levels? How do we define port? Collections in java.