PCNSE Decryption and SSL Inspection Practice Question
This PCNSE practice question tests your understanding of decryption and ssl inspection. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO of the following are supported decryption scenarios on a Palo Alto Networks firewall?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
SSL Forward Proxy
SSL Forward Proxy and SSL Inbound Inspection are the two primary decryption scenarios. SSH Proxy is not a decryption scenario; it is a separate proxy feature. Decryption Broker is not a Palo Alto feature. SSL Termination is not a standalone scenario; it is part of inbound inspection.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Decryption Broker
Why it's wrong here
Decryption Broker is not a standard Palo Alto Networks feature.
✓
SSL Forward Proxy
Why this is correct
Correct: SSL Forward Proxy decrypts outbound traffic from internal clients to external servers.
Related concept
Static NAT maps one inside address to one outside address.
✗
SSL Termination
Why it's wrong here
SSL Termination is not a separate decryption scenario; it is part of inbound inspection.
✗
SSH Proxy
Why it's wrong here
SSH Proxy is not a decryption scenario; it handles non-SSL traffic.
✓
SSL Inbound Inspection
Why this is correct
Correct: SSL Inbound Inspection decrypts inbound traffic to internal servers.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Trap categories for this question
Scenario analysis trap
SSL Termination is not a separate decryption scenario; it is part of inbound inspection.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCNSE NAT questions on configuration and troubleshooting.
Decryption and SSL Inspection — This question tests Decryption and SSL Inspection — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: SSL Forward Proxy — SSL Forward Proxy and SSL Inbound Inspection are the two primary decryption scenarios. SSH Proxy is not a decryption scenario; it is a separate proxy feature. Decryption Broker is not a Palo Alto feature. SSL Termination is not a standalone scenario; it is part of inbound inspection.
What should I do if I get this PCNSE question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCNSE NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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