B. VLAN hopping. This attack exploits packets crafted with multiple VLAN tags, known as double tagging, allowing traffic to traverse into unauthorized VLANs by abusing how switches process nested tags. Why The Other Options Are Incorrect A. MAC flooding. This attack overwhelms a switch CAM table with fake MAC addresses to force flooding behavior, not by using multiple network tags in a packet. C. DNS spoofing. This attack forges DNS responses to redirect traffic and does not involve VLAN tags or