What content can be filtered by the content filtering technology of Huawei USG6000? (Multiple choice)

The process of a browser carrying a cookie to request a resource from a server is as shown in the following figure. Which of the following steps have the session ID information in the message?

Because the sandbox can provide virtual execution environment to detect files on the network, the sandbox can replace devices such as Anti-Virus, IPS and spam detection when deploying security devices.

Which of the following is a false positive for an intrusion detection system?

Which of the following are the upgrade methods for the anti-virus feature database of Huawei USG6000 product? (Multiple Choices)