You are not proficient in backup/restore until you can do it from memory in a query window. It's not enough to know how to do them through the GUI.
Once you've mastered that you can investigate other backup options (SAN snapshot, 3rd party disk replication, DPM/Arcserve/BackupExec vs. LiteSpeed/Redgate backup utilities) and how they work (or don't).
Hands -on- experience is very imporatnt but it is easy to fall into bad habits - and not focus on the critical tasks of the DBA . Reading blogs introduces you to many advanced concepts , particuarly with SQL Server - which doesn't have great product documentation - in comparison to DB2 or Oracle .