What type of attack involves sending malicious ARP packets to change IP and MAC address pairings in an ARP table?

ARP Poisoning, also known as ARP Spoofing, is the correct answer because it specifically refers to the technique where malicious ARP packets are sent over a network to manipulate the ARP (Address Resolution Protocol) tables of devices. By sending falsified ARP messages, an attacker can associate their own MAC address with the IP address of a legitimate network device. This allows the attacker to intercept, redirect, or even modify the traffic intended for that legitimate IP address, undermining the security of the network.

In contrast, Dynamic ARP Inspection is a security feature used to prevent ARP spoofing attacks by ensuring that only valid ARP requests and responses are permitted, thus providing a safeguard against the very attack being described. DHCP Snooping is a security measure that helps prevent unauthorized DHCP servers from assigning IP addresses, while Switch Spoofing involves manipulating switch ports to potentially allow untrusted devices to gain access to the network. All of these alternatives focus on different aspects of network security and do not involve the specific act of sending malicious ARP packets to manipulate IP and MAC address mappings.