350-601 Storage Network Practice Question
Exhibit
switch# show flogi database INTERFACE VSAN FCID PORT NAME NODE NAME fc1/1 100 0x010001 10:00:00:00:c9:2b:1a:5f 20:00:00:00:c9:2b:1a:5f fc1/2 100 0x010002 10:00:00:00:c9:2b:1a:60 20:00:00:00:c9:2b:1a:60 fc1/4 100 0x010003 10:00:00:00:c9:2b:1a:61 20:00:00:00:c9:2b:1a:61
Refer to the exhibit. A server connected to interface fc1/3 on the MDS switch cannot log in to the fabric. The server's HBA WWPN is 10:00:00:00:c9:2b:1a:62. What is the most likely reason for the login failure?
⚠ Common exam trap
Cisco often tests the distinction between pre-login requirements (VSAN assignment, port mode) and post-login requirements (zoning, NPIV), so the trap here is assuming zone membership is checked before the server can log in, when in fact FLOGI must succeed first.
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
✓
Interface fc1/3 is not assigned to VSAN 100
Interface fc1/3 is not assigned to VSAN 100, as shown in the exhibit (the interface is in VSAN 1 by default or another VSAN). Without being in the correct VSAN, the server's FLOGI (Fabric Login) request is processed in the wrong VSAN context, preventing it from logging into the fabric and accessing the intended storage targets. Assigning the interface to the correct VSAN is mandatory for successful fabric login.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
NPIV is disabled on the port
Why it's wrong here
NPIV is for multiple logins, not primary login.
- ✗
The server's WWPN is not in the active zone set
Why it's wrong here
FLOGI would still succeed and show in database.
- ✓
Interface fc1/3 is not assigned to VSAN 100
Why this is correct
Without correct VSAN, the port cannot participate.
- ✗
The link speed is mismatched between switch and HBA
Why it's wrong here
Speed mismatch would show physical errors, not missing FLOGI.
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