350-601 Storage Network Practice Question
In a Cisco MDS switch, what is the effect of the command 'fcdomain restart vsan 100'?
⚠ Common exam trap
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.
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
✓
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.
Answer analysis
Option-by-option breakdown
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.
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