What is the behavior of a typical Ethernet switch when it receives a frame with a uncast destination MAC address? (Choose two)

What is the behavior of a typical Ethernet switch when it receives a frame with a uncast destination MAC address? (Choose two)
A . The switch floods the frame out of all ports except the port on which it was received.
B . The switch looks in its FD
C . If the source address is unknown it discards the frame.
D . The switch looks in its FD
E . If the destination address is known it forwards the frame out the appropriate interface.
F . The switch looks in its FD
G . If the destination address is unknown it floods the frame out all ports except the port on which it was received.
H . The switch looks in its FD
. If the destination address is unknown it discards the frame.

View Answer

Answer: CD