To connect the Palo Alto Networks firewall to AutoFocus, which setting must be enabled?

An administrator has been asked to configure active/passive HA for a pair of Palo Alto Networks NGFWs.
The administrator assigns priority 100 to the active firewall.
Which priority is correct for the passive firewall?

The firewall identifies a popular application as an unknown-tcp.
Which two options are available to identify the application? (Choose two.)

Which tool provides an administrator the ability to see trends in traffic over periods of time, such as threats detected in the last 30 days?

An enterprise information Security team has deployed policies based on AD groups to restrict user access to critical infrastructure systems However a recent phisning campaign against the organization has prompted Information Security to look for more controls that can secure access to critical assets For users that need to access these systems Information Security wants to use PAN-OS multi-factor authentication (MFA) integration to enforce MFA.
What should the enterprise do to use PAN-OS MFA1?