Which of the following is one of the monitors available in the Fortiview dashboard?

In the Fortiview dashboard, VPN usage is an essential monitor that provides insights into virtual private network activities. This monitor allows administrators to track the amount of VPN traffic, see which users are connected, and identify peaks in usage. Understanding VPN usage is crucial for network security and performance, especially in environments where remote access is common. It helps in monitoring user activity, ensuring that unauthorized access is not taking place, and maintaining compliance with organizational policies.

While the other options, such as malware detections, top source ports, and application performance, are indeed important metrics, they may not specifically appear as designated monitors within the Fortiview dashboard. Each of these metrics can be accessed through other specific tools and reports within the FortiAnalyzer framework, but the focus here is directly on the features provided in the Fortiview dashboard, where monitoring VPN usage is prominent.