This 350-401 practice question tests your understanding of 802.1x and trustsec. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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.
A network engineer runs the following command on switch SW9:
SW9# show cts role-based policy
Role-based policy:
Source Group Dest Group Action 10 20 PERMIT 10 30 DENY 20 30 PERMIT
Based on this output, what can be concluded?
Traffic from SGT 10 to SGT 20 is denied.
Why wrong: The action is PERMIT.
Traffic from SGT 20 to SGT 30 is permitted.
The action for source 20 to dest 30 is PERMIT.
Traffic from SGT 30 to SGT 10 is denied.
Why wrong: There is no entry for source 30 to dest 10.
The policy is configured on an ISE server.
Why wrong: The output does not indicate where the policy was configured; it could be local.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Traffic from SGT 20 to SGT 30 is permitted.
The output shows the role-based policy table. It lists the source and destination SGTs and the action (PERMIT or DENY). This is the policy that the switch enforces for traffic between SGTs.
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
For each option: why learners choose it and why it is or isn't the right answer here.
Traffic from SGT 10 to SGT 20 is denied.
Why it's wrong here
The action is PERMIT.
Traffic from SGT 20 to SGT 30 is permitted.
Why this is correct
The action for source 20 to dest 30 is PERMIT.
Related concept
Static NAT maps one inside address to one outside address.
Traffic from SGT 30 to SGT 10 is denied.
Why it's wrong here
There is no entry for source 30 to dest 10.
The policy is configured on an ISE server.
Why it's wrong here
The output does not indicate where the policy was configured; it could be local.
Common exam traps
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
Command / output trap
The output does not indicate where the policy was configured; it could be local.
Detailed technical explanation
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.
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
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
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 350-401 NAT questions on configuration and troubleshooting.
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FAQ
802.1X and TrustSec — This question tests 802.1X and TrustSec — Static NAT maps one inside address to one outside address..
The correct answer is: Traffic from SGT 20 to SGT 30 is permitted. — The output shows the role-based policy table. It lists the source and destination SGTs and the action (PERMIT or DENY). This is the policy that the switch enforces for traffic between SGTs.
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 350-401 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 18, 2026
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