Which command does a network engineer use to verify the…

Which command does a network engineer use to verify the spanning-tree status for VLAN 10?

A.
switch# show spanning-tree vlan 10

B.
switch# show spanning-tree bridge

C.
switch# show spanning-tree brief

D.
switch# show spanning-tree summary

E.
switch# show spanning-tree vlan 10 brief

Explanation:
Command
Description
show spanning-tree
Displays information about the spanning-tree state.
Example output:
SW2#show spanning-tree vlan 10
VLAN0010
Spanning tree enabled protocol rstp
Root ID Priority 24586
Address 0014.f2d2.4180

Cost 9
Port 216 (Port-channel21)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32778 (priority 32768 sys-id-ext 10) Address 001c.57d8.9000
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300 sec
Interface Role Sts Cost Prio.Nbr Type
——————- —- — ——— ——– ————————— Po21 Root FWD 9 128.216 P2p
Po23 Altn BLK 9 128.232 P2p
http://www.cisco.com/en/US/docs/ios/lanswitch/command/reference/lsw_s2.html