Quick Answer
The correct answer is that the 'fcdomain restart vsan 100' command triggers a fabric reconfiguration (RCF), which disrupts traffic. This occurs because the command forces all switches in VSAN 100 to reset the principal switch selection and redistribute domain IDs, effectively tearing down and rebuilding the Fibre Channel fabric. On the Cisco DCCOR 350-601 exam, this tests your understanding of disruptive versus non-disruptive fabric operations—a common trap is confusing this with the non-disruptive 'fcdomain reinitiate vsan' command, which only renegotiates domain IDs without a full RCF. Remember that "restart" implies a hard reset, while "reinitiate" is a soft refresh. For the exam, associate the word "restart" with "RCF" and "traffic disruption." A simple memory tip: Restart = RCF = Really Crashes Frames.
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.
In a Cisco MDS switch, what is the effect of the command 'fcdomain restart vsan 100'?
It enables NPV mode on VSAN 100.
Why wrong: Not related.
It clears the zone configuration for VSAN 100.
Why wrong: Does not affect zones.
It reboots the switch.
Why wrong: Only restarts FC domain.
It causes a fabric reconfiguration, which may disrupt traffic.
Domain restart disrupts traffic.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
It causes a fabric reconfiguration, which may disrupt traffic.
The 'fcdomain restart vsan 100' command triggers a fabric reconfiguration (RCF) on VSAN 100. This process resets the principal switch selection and domain ID distribution, causing all switches in the VSAN to renegotiate their roles and domain IDs, which disrupts existing Fibre Channel traffic during the reconfiguration.
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.
It enables NPV mode on VSAN 100.
Why it's wrong here
Not related.
It clears the zone configuration for VSAN 100.
Why it's wrong here
Does not affect zones.
It reboots the switch.
Why it's wrong here
Only restarts FC domain.
It causes a fabric reconfiguration, which may disrupt traffic.
Why this is correct
Domain restart disrupts traffic.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Cisco often tests the distinction between fabric-level commands (like 'fcdomain restart') and switch-level commands (like 'reload'), leading candidates to mistakenly think a fabric reconfiguration is equivalent to a switch reboot.
Detailed technical explanation
The 'fcdomain restart' command sends a Domain ID Reconfigure Fabric (RCF) request, which forces all switches in the VSAN to reinitialize the principal switch election process per FC-SW-5 standard. This is useful for recovering from domain ID conflicts or after merging fabrics, but it causes a temporary traffic outage because all E-port links must re-establish and domain IDs are reassigned. In a production environment, this command should be used cautiously, as it disrupts all flows in the VSAN until the fabric stabilizes.
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 350-601 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Storage Network — This question tests Storage Network — Read the scenario before looking for a memorised answer..
The correct answer is: It causes a fabric reconfiguration, which may disrupt traffic. — The 'fcdomain restart vsan 100' command triggers a fabric reconfiguration (RCF) on VSAN 100. This process resets the principal switch selection and domain ID distribution, causing all switches in the VSAN to renegotiate their roles and domain IDs, which disrupts existing Fibre Channel traffic during the reconfiguration.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This 350-601 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 350-601 exam.
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