take scn from standby and start take incremental bkp from primary and ship incremental backup from primary to standby and then do start mrp on standby.
The interview is based on asking the questions for a guy who just completed DBA course. anyone can answer those basic questions. Do you have any other videos who asks real time scenarios in depth.
without pfile or spfile we can not mount our database..why is he thinking so much..interviewer is asking basics only..its bit easy as i am having 2.3 years of experience