IBM Javascript FrontEnd Developer interview questions

after applying, they sent 2 tests: one cognitive and one with technical questions and 2 problems (one in js, and the other one in reactjs, nodejs, express or angular - pick one). they called me after 5 days and i had the HR interview, with a cool lady. After 2 days i was called again to set the date of the 2nd interview, the technical one. it's today in like 5 hours.