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1. Palo alto Security Policy Concepts
• Security policies determine whether to block or allow a session based on traffic attributes
• The security policy is applied to bi-directional traffic (client to server and server to client) in that session.
• Security policies are evaluated left to right and from top to bottom.
• A packet is matched against the first rule that meets the defined criteria; after a match is triggered the
subsequent rules are not evaluated.
• Traffic that doesn’t match any defined rules, the default rules apply.

2. What are default rules Universal, Intrazone and Interzone Rules?
Palo alto Security Policy Concepts