An attacker has connected to an unused VoIP phone port to gain unauthorized access to a network. This is an
example of which of the following attacks?

A.
Smurf attack

B.
VLAN hopping

C.
Bluesnarfing

D.
Spear phishing

Explanation:
The VoIP phone port can be used to attack a VLAN on the local network.
VLAN hopping is a computer security exploit, a method of attacking networked resources on a Virtual LAN
(VLAN). The basic concept behind all VLAN hopping attacks is for an attacking host on a VLAN to gain access
to traffic on other VLANs that would normally not be accessible.