Quick Answer
The answer is SXP and CDP. SGT propagation methods for non-inline devices rely on these two protocols because devices that cannot insert Security Group Tags directly into the packet header—such as older switches or firewalls—need an out-of-band mechanism to share SGT-to-IP bindings. SXP (SGT Exchange Protocol) is the primary method, acting as a TCP-based transport that maps IP addresses to SGTs between Cisco TrustSec domains, while CDP (Cisco Discovery Protocol) can carry SGT information in certain implementations, though it is less common and more limited in scope. On the Cisco SCOR / CCNP Security Core 350-701 exam, this tests your understanding of TrustSec architecture and the distinction between inline tagging (e.g., 802.1Q or MACsec) and propagation protocols for non-inline devices. A common trap is confusing LLDP with CDP—LLDP does not support SGT propagation, so always remember that only Cisco-proprietary CDP has this capability. Memory tip: "SXP Shares, CDP Carries" to recall that SXP is the dedicated protocol for sharing bindings, while CDP is a secondary carrier.
This 350-701 practice question tests your understanding of secure network access, visibility and enforcement. 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 methods can be used to propagate SGT information between devices that do not support SGT inline tagging?
NetFlow
Why wrong: NetFlow is for traffic monitoring, not SGT propagation.
CDP
CDP can advertise SGTs in its TLVs.
LLDP
Why wrong: LLDP does not support SGT propagation.
SXP
SXP is designed to exchange SGT mappings between devices.
VRF-lite
Why wrong: VRF-lite is used for routing segmentation, not SGT propagation.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
CDP
Options A and B are correct because SXP (SGT Exchange Protocol) is the primary protocol for SGT propagation, and CDP can also carry SGT information in some implementations. Option C is incorrect because LLDP does not support SGT. Option D is incorrect because VRF-lite is not related to SGT. Option E is incorrect because NetFlow does not propagate SGTs.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
NetFlow
Why it's wrong here
NetFlow is for traffic monitoring, not SGT propagation.
CDP
Why this is correct
CDP can advertise SGTs in its TLVs.
Related concept
Read the scenario before looking for a memorised answer.
LLDP
Why it's wrong here
LLDP does not support SGT propagation.
SXP
Why this is correct
SXP is designed to exchange SGT mappings between devices.
Related concept
Read the scenario before looking for a memorised answer.
VRF-lite
Why it's wrong here
VRF-lite is used for routing segmentation, not SGT propagation.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the 350-701 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which 350-701 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Secure Network Access, Visibility and Enforcement — This question tests Secure Network Access, Visibility and Enforcement — Read the scenario before looking for a memorised answer..
The correct answer is: CDP — Options A and B are correct because SXP (SGT Exchange Protocol) is the primary protocol for SGT propagation, and CDP can also carry SGT information in some implementations. Option C is incorrect because LLDP does not support SGT. Option D is incorrect because VRF-lite is not related to SGT. Option E is incorrect because NetFlow does not propagate SGTs.
Identify which 350-701 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This 350-701 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 350-701 exam.
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