Which statement is true about Layer 2 security threats?

A.
MAC spoofing attacks allow an attacking device to receive frames intended for a different network host.

B.
Port scanners are the most effective defense against dynamic ARP inspection.

C.
MAC spoofing, in conjunction with ARP snooping, is the most effective counter-measure against reconnaissance attacks that use dynamic ARP inspection (DAI) to determine vulnerable attack points.

D.
Dynamic ARP inspection in conjunction with ARP spoofing can be used to counter DHCP snooping attacks.

E.
DHCP snooping sends unauthorized replies to DHCP queries.

F.
ARP spoofing can be used to redirect traffic to counter dynamic ARP inspection.

Explanation:

First of all, MAC spoofing is not an effective counter-measure against any reconnaissance attack; it IS an attack! Furthermore, reconnaissance attacks don’t use dynamic ARP inspection (DAI); DAI is a switch feature used to prevent attacks.