312-50V12 · Question #149
A large enterprise has been experiencing sporadic system crashes and instability, resulting in limited access to its web services. The security team suspects it could be a result of a Denial of…
The correct answer is D. Ping of Death attack. The scenario describes a Denial of Service (DoS) attack characterized by a significant increase in traffic and network logs showing packet sizes exceeding the prescribed limit, leading to system crashes and instability.
Question
Options
- ASmurf attack
- BUDP flood attack
- CPulse wave attack
- DPing of Death attack
How the community answered
(39 responses)- B5% (2)
- C3% (1)
- D92% (36)
Why each option
The scenario describes a Denial of Service (DoS) attack characterized by a significant increase in traffic and network logs showing packet sizes exceeding the prescribed limit, leading to system crashes and instability.
A Smurf attack involves sending ICMP echo requests to a network's broadcast address using a spoofed source IP, causing all hosts to reply to the victim, but it does not primarily focus on oversized packets.
A UDP flood attack involves overwhelming a target with a high volume of User Datagram Protocol (UDP) packets, often to random ports, but its defining characteristic is not packets exceeding the prescribed size limit.
A Pulse wave attack is a type of Distributed Denial of Service (DDoS) attack characterized by alternating periods of intense traffic bursts followed by lulls, designed to bypass traditional volumetric attack detection, but it does not specifically involve oversized packets.
A Ping of Death attack involves sending an Internet Control Message Protocol (ICMP) echo request packet that is larger than the maximum allowed size for an IP packet (typically 65,535 bytes). When the target system attempts to reassemble these fragmented, oversized packets, it can lead to buffer overflows, system crashes, or instability, which perfectly aligns with the described symptoms.
Concept tested: Denial of Service (DoS) attack types and characteristics
Source: https://learn.microsoft.com/en-us/azure/ddos-protection/ddos-attack-types
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