Which cable type is most appropriate for connecting switches with SFP ports across multiple floors for trunking VLAN traffic?

The most appropriate cable type for connecting switches with SFP ports across multiple floors for trunking VLAN traffic is multimode fiber. This choice is ideal because multimode fiber optic cables are designed for high-bandwidth and long-distance data transmission, making them suitable for environments where data needs to be transmitted over significant distances, such as between floors in a building.

Multimode fiber can support multiple light modes simultaneously, allowing for faster data rates and reducing the signal loss over distances that are typically required in a multi-floor setup. This capability is particularly important for VLAN trunking, where multiple virtual LANs are carried over a single physical link, necessitating a reliable and high-capacity connection. Additionally, fiber optic cables are immune to electromagnetic interference, providing more stable and consistent performance compared to copper cables, which is crucial in environments with various electronic devices.

In contrast, coaxial cable is better suited for specific applications such as cable television and internet data transmission over shorter distances. CAT5e rollover and CAT6 straight-through cables are copper-based solutions that have their own limitations in terms of distance (maximums of around 100 meters). They might also be suboptimal for high capacity and high-speed requirements typically needed for VLAN trunking across multi-floor connections, especially when