Explanation
https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-admin/firewall-administration/bootstrap-the-firewall/bootst

Explanation
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/zone-protection-and-dos-protection/zone-defense/p

Explanation
An email profile defines the email server and sender address for sending email notifications from the firewall or Panorama. To forward system logs to email, the engineer needs to create a new email profile under Device
> Server Profiles > Email and configure the required settings, such as SMTP server, sender email address, and recipient email address. Then, the engineer needs to navigate to Device > Log Settings > System and select the email profile under Email for each severity level of system logs that need to be forwarded. Enabling log forwarding under the email profile in the Objects tab or in the Device tab is not possible, as log forwarding profiles are configured under Objects > Log Forwarding. Log forwarding profiles are used for forwarding threat, traffic, URL filtering, data filtering, HIP match, configuration, and correlation logs, not system logs.
References:
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/monitoring/configure-email-alerts
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/monitoring/configure-log-forwarding

Explanation
Panorama can help with troubleshooting problems such as high CPU or resource exhaustion on a managed firewall by providing information about system resources of the managed devices in the Managed Devices > Health menu. This is explained in the Palo Alto Networks PCNSE Study Guide in Chapter 13: Panorama, under the section "Monitoring Managed Firewalls with Panorama":
"The Panorama web interface provides information about the system resources of the managed devices. In the Managed Devices > Health menu, you can view the CPU, memory, and disk usage of each managed device.
This information can help you troubleshoot problems such as high CPU or resource exhaustion on a managed firewall."

Explanation
The System Resources widget of the Exadata WebUI, displays a real-time overview of the various resources like CPU, Memory, and I/O usage across the entire Exadata Database Machine. It shows the usage of both management-plane and data-plane CPU utilization.
System Resources Widget Displays the Management CPU usage, Data Plane usage, and the Session Count (the number of sessions established through the firewall or Panorama).
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-web-interface-help/dashboard/dashboard-widgets.html