This 350-601 practice question tests your understanding of storage network. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
An engineer is designing a SAN for a virtualized environment. Which two best practices should be followed for Fibre Channel zoning?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Use single-initiator zoning.
Simplifies troubleshooting and security.
Use multiple initiators in a single zone.
Why wrong: Increases risk of misconfiguration.
Use soft zoning exclusively.
Why wrong: Soft zoning is less secure.
Disable zoning for performance.
Why wrong: Zoning is required for security.
Zone by WWPN rather than WWNN.
More granular control.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use single-initiator zoning.
Single-initiator zoning (also known as one-to-one zoning) is a best practice because it restricts each Fibre Channel zone to exactly one initiator (host HBA) and one or more target ports. This eliminates the risk of RSCN storms propagating across multiple initiators, reduces fabric instability, and simplifies troubleshooting by ensuring clear, predictable paths between each host and its storage.
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.
Use single-initiator zoning.
Why this is correct
Simplifies troubleshooting and security.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Use multiple initiators in a single zone.
Why it's wrong here
Increases risk of misconfiguration.
Use soft zoning exclusively.
Why it's wrong here
Soft zoning is less secure.
Disable zoning for performance.
Why it's wrong here
Zoning is required for security.
Zone by WWPN rather than WWNN.
Why this is correct
More granular control.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Cisco often tests the misconception that soft zoning is sufficient for security, but the trap here is that soft zoning only filters name server queries and does not prevent a device from directly addressing another device's port if it knows the Fibre Channel address.
Detailed technical explanation
Under the hood, Fibre Channel zoning operates at the fabric level using either hard (port-based) or soft (name server-based) methods. In a virtualized environment with NPIV (N_Port ID Virtualization), single-initiator zoning ensures that each virtual machine's HBA path is isolated, preventing RSCN storms from affecting unrelated VMs. A real-world scenario: in a VMware vSphere cluster with multiple ESXi hosts, using single-initiator zoning per HBA port avoids fabric-wide rescan delays when a new LUN is mapped.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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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: Use single-initiator zoning. — Single-initiator zoning (also known as one-to-one zoning) is a best practice because it restricts each Fibre Channel zone to exactly one initiator (host HBA) and one or more target ports. This eliminates the risk of RSCN storms propagating across multiple initiators, reduces fabric instability, and simplifies troubleshooting by ensuring clear, predictable paths between each host and its storage.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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