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Securing TrafficeasyMultiple ChoiceObjective-mapped

PCNSA Securing Traffic Practice Question

An organization wants to hide internal IP addresses when accessing the Internet. Which type of NAT should be configured?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Source NAT (Outbound)

Source NAT (Outbound). Source NAT translates the source IP address of internal hosts to a public IP address when traffic goes out to the Internet, effectively hiding internal IP addresses. Option B (Dynamic IP and Port) is a type of source NAT that also hides addresses, but it is a specific method, not the broad category. Option C (Destination NAT) translates destination IP addresses for inbound traffic, not outbound. Option D (Static NAT) provides a one-to-one mapping and does not hide the internal IP because the translation is fixed and often bidirectional.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Source NAT (Outbound)

    Why this is correct

    Source NAT changes the source IP to the firewall's interface IP.

  • Dynamic IP and Port (DIPP)

    Why it's wrong here

    DIPP is a type of source NAT, but the question asks which type; source NAT is the general answer.

  • Destination NAT

    Why it's wrong here

    Destination NAT translates destination IP, not source.

  • Static NAT

    Why it's wrong here

    Static NAT is a one-to-one mapping, not hiding multiple internal IPs.

Visual reference

Inside (Private) PC-A 10.0.0.1 PC-B 10.0.0.2 NAT Router Outside (Public) 203.0.113.1 Inside Global Server PAT: many private IPs share one public IP via unique port numbers

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This PCNSA practice question is part of Courseiva's free Palo Alto Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCNSA exam.