In this video, I show how to perform a variety of database backup operations via T-SQL, as well as how (and why) to back up to NUL and how to back up a database to a network share.
This one is not quite as lengthy as the prior video in the series: just 20 minutes instead of 30. That said, I do cover quite a bit of content around taking backups, something that every infrastructure DBA should be familiar doing.