Quick Answer
The correct conclusion is that the switch has an SXP connection to a peer at 10.1.1.1. This is directly supported by the "SXP Connection: 10.1.1.1:64999" line in the CTS environment data output, which confirms that SXP (SGT Exchange Protocol) is enabled and actively propagating Security Group Tag mappings to that IP address. On the ENCOR 350-401 exam, interpreting the show cts environment-data command tests your ability to read Cisco TrustSec operational state, including the device’s own SGT, capabilities, and SXP peer relationships. A common trap is confusing the local SGT value (100) with the peer’s tag or assuming the connection is inbound only—remember that the port number (64999) indicates the local listening port for SXP. Memory tip: "SXP = Share eXchange of Policy," so if you see an IP and port under SXP Connection, that peer is receiving the switch’s SGT mappings.
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 SW4:
SW4# show cts environment-data
CTS Environment Data:
Device ID: SW4.cisco.com Device Name: SW4 CTS Capabilities: SGT, SXP, CTSD, CTSA SGT: 100 SXP Node: Enabled SXP Connection: 10.1.1.1:64999
Based on this output, what can be concluded?
The switch is using 802.1X for authentication.
Why wrong: The output does not mention 802.1X.
The switch has an SXP connection to a peer at 10.1.1.1.
The output shows SXP Node enabled and an SXP connection to 10.1.1.1:64999.
The switch's SGT is 10.
Why wrong: The SGT shown is 100, not 10.
The switch is not capable of SGT assignment.
Why wrong: The CTS capabilities include SGT, indicating it is capable.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The switch has an SXP connection to a peer at 10.1.1.1.
The output shows the switch's CTS environment data, including its own SGT (100) and that SXP (SGT Exchange Protocol) is enabled with a connection to 10.1.1.1 on port 64999. This indicates the switch is participating in SXP to propagate SGT mappings.
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.
The switch is using 802.1X for authentication.
Why it's wrong here
The output does not mention 802.1X.
The switch has an SXP connection to a peer at 10.1.1.1.
Why this is correct
The output shows SXP Node enabled and an SXP connection to 10.1.1.1:64999.
Related concept
Static NAT maps one inside address to one outside address.
The switch's SGT is 10.
Why it's wrong here
The SGT shown is 100, not 10.
The switch is not capable of SGT assignment.
Why it's wrong here
The CTS capabilities include SGT, indicating it is capable.
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 mention 802.1X.
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: The switch has an SXP connection to a peer at 10.1.1.1. — The output shows the switch's CTS environment data, including its own SGT (100) and that SXP (SGT Exchange Protocol) is enabled with a connection to 10.1.1.1 on port 64999. This indicates the switch is participating in SXP to propagate SGT mappings.
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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