An attacker is trying to redirect the traffic of a small office. That office is using their own mail server, DNS server and NTP server because of the importance of their job. The attacker gain when th

MAC Flooding is a Layer 2 attack that overwhelms a switch's CAM table to force promiscuous forwarding of frames - it does not manipulate DNS resolution or redirect domain-based traffic.

A Smurf Attack is a volumetric DDoS amplification attack that uses spoofed ICMP echo requests to broadcast addresses - it is not a traffic redirection or name-resolution attack.

DNS spoofing, also known as DNS cache poisoning, involves an attacker injecting forged DNS records so that queries for legitimate domains like google.com resolve to the attacker's IP address instead of the real server. Because the office uses its own DNS server, the attacker can target that server to poison its cache, redirecting all clients that query it. This results in transparent traffic interception without any indication to the user that they have been redirected.

ARP Poisoning corrupts Layer 2 ARP caches to redirect traffic between hosts on the same LAN segment - the scenario describes redirection based on domain name resolution, which is a DNS-layer attack.