I was interviewed by Involver, which was acquired by Oracle. I had two 45-minute phone interviews. The first interviewer expected a short answer, while the second interviewer wanted a detailed response. The questions were basic.

Before the interview, I reviewed Involver interview questions. They asked the exact same questions in the same order.

1. Hash and array difference

2. Explain transaction

3. Get and POST

4. Programming question: File with IP and timestamp, order by number of times the IP is listed.

5. General website workflow. For example, what happens when you go to google.com?

6. Reasons for slow queries

7. DIV

8. IFRAME

9. List different types of data structures and explain.

10. How would you design to scale up an application?

11. Maintainability

12. Extensibility

13. Lazy loading

14. Indexing speeds up the query. What about having multiple indexes in a table?

15. What is a good comment?