Mercans

Mercans Second Round

1. http vs https protocal, how these are different internally, is the case of GET is data encrypted? which Encryption is used?
2. POST vs PUT, how these are different. when to use which one.
3. Rotate array by k steps.
4. Can Singleton controller have Prototype service.
5. What happens when a Spring App starts?
6. What are the encryption techniques?
7. ACID properties in databases?
8. Which Isolation type by default supported by databases.
9. What is the complexity of Binary tree insertaion and update.
10. What is type eraser. is it runtime or compile time. if it is compile time then why it is not runtime.
11. Internal working of Hashmap, how it works.