#43. You are troubleshooting problems on a Catalyst 5000 trunk and you notice that there is a disagreement about the VLANs configured to use the trunk.
#48. With a single switching bus on the Catalyst 5000, what process controls how packets access the backplane as they transfer to destinations on the switch?
#49. IP routing often uses a table that shows the correspondence between network and LAN hardware addresses. When troubleshooting, you want to check if hosts are in this table or if there are any duplicate routes.