Which command allows you to verify the current spanning-tree status on a Cisco switch?

The command that allows you to verify the current spanning-tree status on a Cisco switch is "show spanning-tree." This command provides detailed information about the spanning tree protocol (STP) state on the switch, including the root bridge, port roles, and port states. It is essential for understanding how the switch is participating in the spanning tree and helps in troubleshooting network loops and switches configuration in a LAN environment.

The other commands serve different purposes. "Show version" displays information about the software version of the switch and hardware details, but does not provide spanning-tree information. "Show interfaces" gives a status of all interfaces on the switch, including their operational state and error statistics but does not specifically address spanning tree details. "Show ip route" is used to display the routing table of the switch; it is primarily focused on Layer 3 routing information and does not cover the Layer 2 spanning tree status. Hence, for verifying spanning-tree status, "show spanning-tree" is the appropriate command.