ECSS: EC-Council Certified Security Specialist

A DoS attack is an incident in which a user or organization is denied services from a resource they would normally expect to access. At the data-link layer, DoS attacks can be performed easily. DoS attacks at the application and transport layers are primarily the same, but the interaction among the network, data-link, and physical layers that increases the risk of a DoS attack on a wireless network is different.

An attacker can create a device that saturates the 802.11 frequency bands with noise. If the attacker generates enough RF noise to lower the signal-to-noise ratio to an unusable level, devices within range of the noise will effectively be taken offline, blocking communication. What type of DoS attack is being discussed here?