Anti-DDoS defense system includes: management center, inspection center and cleaning center.

File filtering technology can filter files based on the application of the file, the file transfer direction, the file type and the file extension.

Regarding the network intrusion detection system (NIDS), which of the following statements is wrong?

If you combine security defense with big data technology, which of the following statements are correct?
(multiple choice)

In the big data intelligent security analysis platform, it is necessary to collect data from the data source, and then complete a series of actions such as data processing, detection and analysis.
Which of the following options does not belong to the data processing part that needs to be completed?