Question 1hardmatching
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Quick Answer
The correct matching pairs are CTS for the Cisco TrustSec architecture framework, SGT for the security group tag, SGACL for the security group access control list, SXP for the SGT Exchange Protocol, and MACsec for link-layer encryption. This is correct because TrustSec operates by assigning an SGT to traffic, which is then evaluated against SGACLs to enforce policy, while SXP propagates those tags across non-TrustSec-capable devices and MACsec provides hop-by-hop encryption on the wire. On the ENCOR 350-401 exam, this drag-and-drop question tests your ability to distinguish the core components of the TrustSec framework, a common trap being confusion between SGT (the tag itself) and SGACL (the policy that uses the tag). A reliable memory tip is to think of SGT as the “name tag,” SGACL as the “bouncer’s rulebook,” SXP as the “messenger,” and MACsec as the “armored car.”
CCNP 802.1X and TrustSec Practice Question
This 350-401 practice question tests your understanding of 802.1x and trustsec. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Drag and drop each TrustSec component on the left to its matching function on the right.
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
✓
SGT: 16-bit security group tag assigned to traffic
SGT is the tag, SGACL is the policy, SXP propagates tags, MACsec encrypts the link.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
A security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related 350-401 ACL questions on filtering logic and placement.
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802.1X and TrustSec — study guide chapter
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802.1X and TrustSec practice questions
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FAQ
Questions learners often ask
What does this 350-401 question test?
802.1X and TrustSec — This question tests 802.1X and TrustSec — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: SGT: 16-bit security group tag assigned to traffic — SGT is the tag, SGACL is the policy, SXP propagates tags, MACsec encrypts the link.
What should I do if I get this 350-401 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related 350-401 ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on 350-401
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Drag and drop each TrustSec component on the left to its matching function on the right.
medium- ✓ P1.SGT: 16-bit security tag embedded in Ethernet or IP packets
- ✓ P2.SGACL: Access control list based on source and destination SGT
- ✓ P3.SXP: Protocol to propagate SGT bindings between network devices
- ✓ P4.MACsec: IEEE 802.1AE encryption for point-to-point links
- ✓ P5.CTS: Cisco TrustSec architecture that combines SGT, SGACL, and MACsec
Why P1: SGT tags traffic, SGACL enforces policy, SXP propagates SGTs, and MACsec encrypts at Layer 2.
Last reviewed: Jun 18, 2026
This 350-401 practice question is part of Courseiva's free Cisco 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 350-401 exam.
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