Which of the following network attacks relies on sending an abnormally large packet size that exceeds TCP/ IP specifications?

The ping of death exploits the TCP/IP specification by crafting an ICMP echo request that, when fragmented for transmission and then reassembled at the destination, exceeds the 65,535-byte maximum IP packet size. This buffer overflow condition causes the target operating system to crash, freeze, or reboot, constituting a denial-of-service condition. The attack directly matches the description of using abnormally large packets that violate TCP/IP size specifications.

SYN flooding is a denial-of-service attack that sends large numbers of TCP SYN packets without completing the three-way handshake, exhausting server connection state tables rather than using oversized packets.

TCP hijacking (session hijacking) involves an attacker intercepting and taking over an established TCP session by predicting or sniffing sequence numbers, not by transmitting oversized packets.

A smurf attack is an amplification attack that spoofs a victim's IP address and sends ICMP broadcast requests to many hosts, generating a flood of responses directed at the victim, unrelated to packet size violations.