A ________ is an older attack that uses an illegally large IP packet to crash an operating system.

• A. Smurf flood
• B. P2P redirect
• C. Ping of Death
• D. None of the above

Answer: (C)

The concept being tested is how an attacker exploits a packet that’s larger than what the IP protocol allows to crash a host. IP packets can carry up to 65,535 bytes in total. If an attacker crafts a packet that exceeds this limit and sends it in a way that the target’s reassembly process mishandles it, it can overflow buffers or disrupt the operating system, causing a crash or reboot. This exact approach earned its name as the Ping of Death because it used an ICMP Echo (ping) to deliver the oversized payload.

That’s why the best match is the Ping of Death: it specifically describes an older vulnerability where illegally large IP packets are used to destabilize or crash a system. The other options describe different attacks—Smurf flood relies on amplifying traffic via a broadcast address, and P2P redirect targets routing tricks in peer-to-peer networks—so they don’t fit the described technique.