RMAN making backup
I started working on a new job. I notice that all the databases are on noarchive log mode and have not been shutdown for 6 months. I questioned the dba on the backup. He claimed that the databases have been backup weekly via RMAN. Though I have not worked on RMAN much, I do not think that would work because 1) no archivelog mode 2) not been shutdown for the backup. This is the basic 101.
Am I too legged behind the technologies?