This 350-601 practice question tests your understanding of storage network. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 team is configuring FCoE on a Cisco Nexus switch. Which TWO steps are mandatory to establish a lossless FCoE link?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable FCoE on the interface using the 'fcoe' command
Options A and C are correct. FCoE must be explicitly enabled on the interface. DCBX must be configured (or enabled) to negotiate PFC and other parameters for lossless operation. Option B is incorrect: VSAN creation is part of FCoE configuration, but not mandatory on the interface level (VSANs are created globally). Option D is incorrect: MTU must be set to 2500 bytes (jumbo) for FCoE, not 9216. Option E is incorrect: PFC is enabled via DCBX, not as a separate command on the interface.
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
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Enable FCoE on the interface using the 'fcoe' command
Why this is correct
FCoE must be enabled per interface.
Related concept
Access ports place end devices into a single VLAN.
✗
Enable Priority Flow Control (PFC) as a separate CLI
Why it's wrong here
PFC is negotiated via DCBX, not directly enabled per interface.
✗
Create a VSAN and map it to an FCoE VLAN
Why it's wrong here
This is done globally, not on the specific interface as a mandatory step.
✓
Configure DCBX to advertise and negotiate FCoE capabilities
Why this is correct
DCBX is required for lossless fabric.
Related concept
Access ports place end devices into a single VLAN.
✗
Set the MTU to 9216 bytes to accommodate FCoE frames
Why it's wrong here
FCoE requires jumbo frames of 2500 bytes, not 9216.
Common exam traps
Common exam trap: an active trunk can still block the VLAN you need
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.
Detailed technical explanation
How to think about this question
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.
KKey Concepts to Remember
Access ports place end devices into a single VLAN.
Trunk ports carry multiple VLANs between switches.
Allowed VLAN lists decide which VLANs can cross a trunk.
Native VLAN mismatch can create confusing symptoms.
TExam Day Tips
→Use show vlan brief to verify access VLANs.
→Use show interfaces trunk to verify trunk state and allowed VLANs.
→Do not treat every same-VLAN issue as a routing problem.
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
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.
What to study next
Got this wrong? Here's your next step.
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.
Storage Network — This question tests Storage Network — Access ports place end devices into a single VLAN..
What is the correct answer to this question?
The correct answer is: Enable FCoE on the interface using the 'fcoe' command — Options A and C are correct. FCoE must be explicitly enabled on the interface. DCBX must be configured (or enabled) to negotiate PFC and other parameters for lossless operation. Option B is incorrect: VSAN creation is part of FCoE configuration, but not mandatory on the interface level (VSANs are created globally). Option D is incorrect: MTU must be set to 2500 bytes (jumbo) for FCoE, not 9216. Option E is incorrect: PFC is enabled via DCBX, not as a separate command on the interface.
What should I do if I get this 350-601 question wrong?
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.
What is the key concept behind this question?
Access ports place end devices into a single VLAN.
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