The configuration allows a wired or wireless network interface controller to pass all traffic it receives to the
central processing unit (CPU), rather than passing only the frames that the controller is intended to receive.
Which of the following is being described?

A.
promiscuous mode

B.
port forwarding

C.
multi-cast mode

D.
WEM

Explanation:
Promiscuous mode refers to the special mode of Ethernet hardware, in particular network interface cards
(NICs), that allows a NIC to receive all traffic on the network, even if it is not addressed to this NIC. By default, a
NIC ignores all traffic that is not addressed to it, which is done by comparing the destination address of the
Ethernet packet with the hardware address (a.k.a. MAC) of the device. While this makes perfect sense for
networking, non-promiscuous mode makes it difficult to use network monitoring and analysis software for
diagnosing connectivity issues or traffic accounting.
https://www.tamos.com/htmlhelp/monitoring/