Which two commands configure SPAN to monitor outgoing traffic across multiple interfaces? (Choose two.)
A. monitor session 1 destination interface gigabitethernet1/0/2 rx
B. monitor session 1 source vlan 10 – 20 tx
C. monitor session 1 destination interface gigabitethernet1/0/2
D. monitor session 1 source interface gigabitethernet1/0/1 tx
E. monitor session 1 source interface gigabitethernet1/0/1 rx
To configure SPAN, we need one source interface (or Vlan) and one destination port (or vlan in case of RSPAN) so, the only answer that is monitoring the TX traffic from several vlans (in this case) is the B.
For the destination port, we can select only the C because the A is wrong due to the TX at the end of the command.
So B and C
C will monitor transmit and receive. I think this is B and D.
correct answer.
https://www.comparitech.com/net-admin/port-mirroring-cisco-span/