(1) consuming type. dos attack's purpose is to make the attack host can not work properly, which declined to normal service. To achieve this goal, the most direct means is through the final run out of the limited resources of the system host, such as CPU, memory, buffer, bandwidth.

(1) time-consuming. The purpose of the attacks DoS was to make the attack of the host does not work properly, resulting in a denial. To achieve this goal, the most direct means of drain system is through the final host of the limited resources, such as CPU, memory, buffers, bandwidth, and%