What will happen to the Ethernet frame?

Refer to the exhibit of the N-series switches.

The exhibit shows a Layer 2 network between Host A (a Desktop Computer running Windows 7) and Host B (another Desktop Computer running Windows 7) and the list of VLANs Untagged (U) and Tagged (T) at each Ethernet interface: Host A transmits an Ethernet frame untagged on VLAN 1.

What will happen to the Ethernet frame?
A . SW2 drops the Ethernet frame when trying to transmit it out of interface E2 because the incoming and outgoing interfaces are Tagging/Untagging VLAN 1 differently.
B . The Ethernet frame is successfully delivered to Host.
C . STP drops the Ethernet frame because it cannot create an end-to-end loop free path between the switches for VLAN 1.
D . VLAN consistency protocol determines that the VLAN is not correctly Tagged/Untagged on all interfaces, an error will occur, and SW1 will drop the frame on interface E2.

View Answer

Answer: B