350-601 Storage Network Practice Question
Exhibit
Refer to the exhibit. switch# show fcns database vsan 100 VSAN 100: ------------------------------------------------------------------- FCID TYPE PWWN (VENDOR) FC4_TYPE ------------------------------------------------------------------- 0x010000 N 10:00:00:00:c9:00:00:01 (ABC) scsi-fcp 0x010001 N 10:00:00:00:c9:00:00:02 (ABC) scsi-fcp 0x010002 N 10:00:00:00:c9:00:00:03 (DEF) scsi-fcp 0x010003 NL 10:00:00:00:c9:00:00:04 (ABC) scsi-fcp Total number of entries = 4
Based on the exhibited output, what can be concluded about the fabric?
⚠ Common exam trap
Cisco often tests the distinction between loop-attached and fabric-attached devices by using FCID states like 'NLP' versus 'Online' to mislead candidates into thinking all devices are fabric-attached, when in fact the 'NLP' state specifically indicates a loop topology.
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
✓
The device with FCID 0x010003 is a loop-attached device.
The output shows that the device with FCID 0x010003 has an 'NLP' (Node Loop Port) state, which indicates it is attached to a loop (e.g., via an FL_Port). This is a key characteristic of a loop-attached device, as opposed to a point-to-point fabric-attached device. Therefore, option D is correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The fabric contains a domain ID conflict.
Why it's wrong here
No evidence of conflict; all FCIDs start with 0x01.
- ✗
The device with FCID 0x010002 is a disk array.
Why it's wrong here
FC4 type does not differentiate between host and storage.
- ✗
There are three initiators and one target.
Why it's wrong here
The FC4 type is scsi-fcp for all, but cannot determine role from FCNS alone.
- ✓
The device with FCID 0x010003 is a loop-attached device.
Why this is correct
The 'NL' type indicates a loop-attached node (public loop).
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