350-601 Storage Network Practice Question
An administrator wants to ensure that a specific initiator can only access a single target LUN. Which zoning approach satisfies this requirement?
⚠ Common exam trap
Cisco often tests the misconception that WWPN zoning alone restricts LUN access, but in reality, WWPN zoning only controls fabric-level connectivity, not SCSI-level LUN visibility, which requires LUN masking or LUN zoning.
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
✓
Use LUN zoning to map the initiator to a specific LUN ID.
LUN zoning (also known as LUN masking) allows the administrator to map a specific initiator to a particular LUN ID on a target, ensuring that the initiator can only access that single LUN. This is achieved by configuring access control at the storage array level, typically using the target's LUN masking feature, which restricts visibility to only the assigned LUN. Unlike WWPN zoning, which controls fabric-level access, LUN zoning provides granular per-LUN access control.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use LUN zoning to map the initiator to a specific LUN ID.
Why this is correct
LUN zoning restricts access to a specific LUN on the target.
- ✗
Implement soft zoning based on domain IDs.
Why it's wrong here
Soft zoning is not enforced; it only suggests allowed paths.
- ✗
Configure a zone with the initiator WWPN and the target WWPN.
Why it's wrong here
WWPN zoning allows access to all LUNs on the target unless further restricted.
- ✗
Place the initiator and target in different VSANs.
Why it's wrong here
Different VSANs prevent communication entirely.
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