This 350-601 practice question tests your understanding of 350-601 exam topics. 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.
A network administrator must enforce security policies for east-west traffic in a Cisco TrustSec-enabled data center without using IP-based ACLs. Which technology should be used?
VLAN ACLs
Why wrong: VACLs are IP/MAC based, not identity-based.
CoPP
Why wrong: CoPP protects the control plane, not east-west traffic.
SGACL
SGACLs enforce policy based on SGTs, avoiding IP dependencies.
ACI contracts
Why wrong: Contracts work in ACI, but the scenario implies TrustSec.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
SGACL
TrustSec uses SGTs for identity-based tagging and SGACLs to enforce policy without IP addresses.
Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
VLAN ACLs
Why it's wrong here
VACLs are IP/MAC based, not identity-based.
CoPP
Why it's wrong here
CoPP protects the control plane, not east-west traffic.
SGACL
Why this is correct
SGACLs enforce policy based on SGTs, avoiding IP dependencies.
Related concept
Access ports place end devices into a single VLAN.
ACI contracts
Why it's wrong here
Contracts work in ACI, but the scenario implies TrustSec.
Common exam traps
A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.
Trap categories for this question
Scenario analysis trap
Contracts work in ACI, but the scenario implies TrustSec.
Detailed technical explanation
VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.
Key takeaway
A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Real-world example
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.
What to study next
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related 350-601 questions on switching, trunking, and access-port configuration.
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FAQ
Access ports place end devices into a single VLAN.
The correct answer is: SGACL — TrustSec uses SGTs for identity-based tagging and SGACLs to enforce policy without IP addresses.
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related 350-601 questions on switching, trunking, and access-port configuration.
Access ports place end devices into a single VLAN.
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Last reviewed: Jul 4, 2026
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