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Palo Alto Networks Certified Network Security Administrator (PCNSA) · Palo Alto Networks
Select one answer.
Written by other learners. Comments can disagree with the marked answer — check the official documentation when in doubt.
Strongly recommend completing the Security+ or its equivalent in PCCET - Palo Alto Networks Certified Entry-level Technician. As a Firewall Administrator, knowing about 100 ports by heart is essential.
application-default means the default port will be used. in this case for SSH port 22. A is correct.