An engineer troubleshoots a high availability (HA) link that is unreliable.
Where can the engineer view what time the interface went down?

A firewall administrator is investigating high packet buffer utilization in the company firewall. After looking at the threat logs and seeing many flood attacks coming from a single source that are dropped by the firewall, the administrator decides to enable packet buffer protection to protect against similar attacks.
The administrator enables packet buffer protection globally in the firewall but still sees a high packet buffer utilization rate.
What else should the administrator do to stop packet buffers from being overflowed?

An engineer is reviewing policies after a PAN-OS upgrade What are the two differences between Highlight Unused Rules and the Rule Usage Hit counters immediately after a reboot?

A company uses GlobalProtect for its VPN and wants to allow access to users who have only an endpoint solution installed. Which sequence of configuration steps will allow access only for hosts that have antivirus or anti-spyware enabled?

When configuring explicit proxy on a firewall, which interface should be selected under the Listening interface option?