Which of the following is not an abnormal condition of the file type recognition result?

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

The cloud sandbox refers to deploying the sandbox to the cloud and providing tenants with remote detection services. The process includes:
1. Report suspicious files
2. Backtracking attacks
3. Firewall defense linkage
4. Cloud sandbox detection
Which of the following option is correct for the sorting of this process?

In Huawei's USG6000 products, IAE provides an integrated solution. All content security detection functions are integrated in a well-designed, high-performance engine.
Which of the following is not a content security detection feature that the product supports?

When the license of Huawei USG6000 product expires, the RBL function will be unavailable, and users can only use the local black and white list to filter junk mail.