- A
TrustSec
Why wrong: TrustSec assigns SGTs but does not dynamically change VLANs after posture.
- B
Profiling
Why wrong: Profiling identifies device type but does not change VLANs.
- C
MAB
Why wrong: MAB is an authentication method, not a dynamic change mechanism.
- D
CoA
CoA enables dynamic session changes, including VLAN/ACL updates.
Question 105 of 988
350-701 Endpoint Security and Identity Practice Question
This 350-701 practice question tests your understanding of endpoint security and identity. 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.
An administrator wants to dynamically change the VLAN assignment for a user after a posture assessment determines that the endpoint is missing a critical patch. Which ISE feature accomplishes this?
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
✓
CoA
Change of Authorization (CoA) is the correct answer because it is the ISE feature that allows dynamic, real-time changes to an authenticated session, such as reassigning a VLAN, after a posture assessment. When a posture assessment determines an endpoint is non-compliant (e.g., missing a critical patch), ISE can send a CoA request (RFC 5176) to the network access device (NAD) to modify the session attributes, including VLAN assignment, without requiring the user to reauthenticate.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
TrustSec
Why it's wrong here
TrustSec assigns SGTs but does not dynamically change VLANs after posture.
- ✗
Profiling
Why it's wrong here
Profiling identifies device type but does not change VLANs.
- ✗
MAB
Why it's wrong here
MAB is an authentication method, not a dynamic change mechanism.
- ✓
CoA
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between authentication methods (like MAB) and post-authentication enforcement mechanisms (like CoA), so the trap here is confusing a feature that handles initial access (MAB) with one that modifies an existing session (CoA).
Detailed technical explanation
How to think about this question
CoA operates using UDP port 3799 and can be initiated by ISE via RADIUS Disconnect-Request or CoA-Request messages as defined in RFC 5176. In a real-world scenario, if a user's endpoint fails posture check, ISE can send a CoA with a 'Filter-Id' attribute pointing to a restricted VLAN or a 'Tunnel-Private-Group-ID' to move the user to a quarantine VLAN, effectively isolating the device until the patch is applied. This is often combined with dACLs (downloadable ACLs) for granular control.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.
Visual reference
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this 350-701 question test?
Endpoint Security and Identity — This question tests Endpoint Security and Identity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: CoA — Change of Authorization (CoA) is the correct answer because it is the ISE feature that allows dynamic, real-time changes to an authenticated session, such as reassigning a VLAN, after a posture assessment. When a posture assessment determines an endpoint is non-compliant (e.g., missing a critical patch), ISE can send a CoA request (RFC 5176) to the network access device (NAD) to modify the session attributes, including VLAN assignment, without requiring the user to reauthenticate.
What should I do if I get this 350-701 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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