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Exam PCNSA topic 1 question 308 discussion

Actual exam question from Palo Alto Networks's PCNSA
Question #: 308
Topic #: 1
[All PCNSA Questions]

An administrator is trying to understand which NAT policy is being matched.

In what order does the firewall evaluate NAT policies?

  • A. Dynamic IP and Port first, then Static, and finally Dynamic IP
  • B. From top to bottom
  • C. Static NAT rules first, then lop down
  • D. Static NAT rules first, then Dynamic
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Suggested Answer: B 🗳️

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Adeolu007
1 month, 2 weeks ago
Selected Answer: B
Top down
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Kaifus
7 months, 1 week ago
Selected Answer: B
The firewall evaluates the rules in order from the top down. Once a packet matches the criteria of a single NAT rule, the packet is not subjected to additional NAT rules. Therefore, your list of NAT rules should be in order from most specific to least specific so that packets are subjected to the most specific rule you created for them.
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baccalacca
1 year, 4 months ago
answer = b You configure a NAT rule to match a packet’s source zone and destination zone, at a minimum. In addition to zones, you can configure matching criteria based on the packet’s destination interface, source and destination address, and service. You can configure multiple NAT rules. The firewall evaluates the rules in order from the top down. Once a packet matches the criteria of a single NAT rule, the packet is not subjected to additional NAT rules. Therefore, your list of NAT rules should be in order from most specific to least specific so that packets are subjected to the most specific rule you created for them. https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-networking-admin/nat/nat-policy-rules/nat-policy-overview
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