Which DoS protection mechanism detects and prevents session exhaustion attacks?

Which DoS protection mechanism detects and prevents session exhaustion attacks?Reference: https://www.paloaltonetworks.com/documentation/71/pan-os/pan-os/policy/dos-protection-profiles

Question:

Which DoS protection mechanism detects and prevents session exhaustion attacks?

Options:

Packet Based Attack Protection

Flood Protection

Resource Protection

TCP Port Scan Protection

Correct Answer

The Correct Answer for this Question is

Resource Protection