The administrator of a certain enterprise wants employees of Yangzhi to visit the shopping website during working hours. So a URL filtering configuration file is configured to divide the predefined The shopping website in the category is selected as blocked. But employee A can still use the company's network to shop online during lunch break. Then what are the following possible reasons some?

The most common form of child-like attack is to send a large number of seemingly legitimate packets to the target host through Flood, which ultimately leads to network bandwidth.
Or the equipment resources are exhausted. Which of the following options is not included in traffic attack packets?

Which of the following types of attacks are DDoS attacks? 2I

An account can belong to multiple roles, that is, a user may hold multiple positions.

There is a three-layer forwarding device between the authentication client and the admission control device:If at this time Portal The certified three-layer authentication device can also obtain the authentication client's MAC address,So you can use IP Address and MC The address serves as the information to identify the user.