What function does the Zscaler Cloud Firewall provide?

The Zscaler Cloud Firewall provides complete control over ports and protocols, which is essential for managing network traffic and securing communication between clients and services. This function allows organizations to define specific rules that govern which ports and protocols can be used for outbound and inbound traffic, thus enabling administrators to enforce network security policies effectively. By controlling traffic at this granular level, the Zscaler Cloud Firewall can prevent unauthorized access, reduce risk exposure, and enhance overall network security.

While other functions listed, such as automatic patch management, user activity logging, and data loss prevention, are crucial components of a comprehensive security strategy, they do not specifically pertain to the primary purpose of the Zscaler Cloud Firewall. The focus of the firewall is on managing and filtering network traffic, which is why complete control over ports and protocols is the most appropriate answer.