Ethical Hacking Essentials Practice Test

What type of attack did Gordon employ to disrupt communication between networks by creating traffic congestion?

1. Sybil attack

2. Replay attack

3. Eavesdropping attack

4. SQL injection attack

The correct answer is: Sybil attack

The correct choice, which involves creating traffic congestion to disrupt communication between networks, relates closely to a Sybil attack. In this type of attack, an adversary presents multiple identities to a network, which can lead to various impacts, including overwhelming the network with excessive data or routing requests that congest communication paths. By controlling several nodes, the attacker can manipulate the flow of traffic, making it difficult for legitimate users to communicate effectively. In contrast, a replay attack focuses on intercepting and reusing valid data transmissions, which doesn't necessarily create congestion but rather duplicates messages. An eavesdropping attack involves passive monitoring of communications without altering or disrupting them. SQL injection targets database queries to manipulate or extract data and does not pertain to network communication disruption. Thus, the mechanism of traffic congestion aligns most closely with what is characteristically understood in a Sybil attack scenario.