Visa Inc. Software Developer interview questions

They came to my college and conducted an online test. The test involved questions from Machine Learning, Big Data, Data Structures, Networking, Database, Computer architecture, Coding Languages, OOPs and System Programming. After the test, I had three PI rounds. The first round was more on Data Structures, Networking, Database, Project discussion and Puzzles. Second Round was also technical. They ask me to code for a given problem. The third round was taken by HR.

The process took 2 weeks. The interview overall was fair, except that some of the requirements stated on the document and what they wanted were different. For my application, I applied as Web Developer Intern and what they stated are proficiency in Javascript as front-end and Java as back-end. So far so good. The HR called me and asked some scenario questions. We talked for an hour. Then the HR replied me back in a week to schedule a technical interview in the office. To my surprise, the requirement was actually proficiency in Java for both front-end and back-end.