Peter has performed a DHCP starvation attack in the given scenario. In this attack, the attacker floods the target DHCP server with spoofed MAC addresses, depleting the pool of available IP addresses. As a result, legitimate users cannot obtain IP addresses via DHCP, causing a Denial of Service (DoS) attack12. Additionally, the attacker could set up a rogue DHCP server to assign IP addresses to legitimate users, potentially leading to a Man-in-the-Middle (MITM) attack1. The correct answer is D. 5 -> 1 -> 6 -> 2 -> 3 -> 41.