Can be practiced with "Free Cisco Catalyst Switch Lab", by Brendan Choi
http://labswitch.blogspot.fr/
1: Load or verify the configurations from Lab 6-1.
2: Configure the primary and secondary root bridges for the VLANs.
3: Configure root guard.
4: Demonstrate root guard functionality.
5: Configure BPDU guard.
6: Enable broadcast storm control on trunk ports.
7: Configure UDLD.
8: Save your final device configurations for use with the next lab.