| Exam 300-320 | Question id=2746 | Advanced Enterprise Campus Networks |
In what situation must spanning-tree be implemented ?
| A. |
when fast convergence is required for link failures | |
| B. |
when redundant Layer 2 links, that are not part of a single EtherChannel or bundle, exist between distribution switches | |
| C. |
when trunks need to extend multiple VLANs across access switches | |
| D. |
when a VLAN spans access layer switches |