| Exam 300-320 | Question id=2655 | Advanced Enterprise Campus Networks |
In what situation must spanning-tree be implemented?
| A. |
when first hop redundancy protocol exists with redundant Layer 2 links between distribution switches | |
| B. |
when a VLAN spans access layer switches to support business applications | |
| C. |
when trunks need to extend multiple VLANs across access switches | |
| D. |
when it is necessary to speed up network convergence in case of link failure |