Which of the following is an advanced feature of the FortiGate firewall?

Application control is considered an advanced feature of the FortiGate firewall because it goes beyond basic firewall capabilities by enabling the identification and management of applications flowing through the network. This functionality allows administrators to enforce security policies based on the specific applications in use rather than just the ports or protocols being used for communication.

By utilizing application control, organizations can gain granular visibility into their network traffic, enabling them to block or limit bandwidth for non-essential or high-risk applications. This helps to minimize vulnerabilities, reduce bandwidth usage, and enhance overall network performance and security.

Data loss prevention, while important, is typically considered a distinct security measure that focuses on preventing sensitive data from being leaked or accessed improperly, rather than application-specific management. Content filtering is more related to blocking or allowing specific types of content and is not as advanced as application control since it typically does not involve the same level of contextual understanding of the data being handled. Network speed testing is more of a diagnostic tool than an advanced security feature and does not relate to security policy enforcement.