Best Practices for Fibre Channel Zoning on Cisco MDS
Which THREE of the following are best practices for Fibre Channel zoning on Cisco MDS switches?
Quick Answer
The answer is to always activate the zone set using the 'zone activate' command in configuration mode, alongside using WWPN zoning for stability and read-only zone sets for audit purposes. These three practices form the core of Fibre Channel zoning best practices on Cisco MDS because WWPN-based zoning ensures persistent device identification regardless of physical port changes, while read-only zone sets prevent accidental configuration drift and provide a clear audit trail. On the Cisco DCCOR 350-601 exam, this topic tests your understanding of SAN security and operational stability, often appearing as a multiple-select question that tries to trap you into choosing soft zoning or assuming hard zoning is a separate best practice—remember, hard zoning is the default behavior, not an additional recommendation. A solid memory tip is to think "WAR": WWPN, Activate, Read-only—these three keep your SAN stable, enforced, and auditable.
⚠ Common exam trap
Cisco often tests the distinction between hard zoning and soft zoning, where candidates may incorrectly assume that soft zoning is a best practice due to its simplicity, but the exam emphasizes that hard zoning is the recommended method for security.
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
✓
Make zones as specific as possible, avoiding device inclusion across multiple zones unnecessarily
Options A, B, and D are best practices for Fibre Channel zoning on Cisco MDS switches. A: Making zones as specific as possible reduces unnecessary exposure and simplifies management. B: WWPN-based zoning is preferred over port-based zoning because it allows device mobility without reconfiguration. D: Hard zoning provides hardware-level enforcement via access control lists, offering stronger security than soft zoning. Option C is incorrect because while activating the zone set is necessary, the correct command is 'activate zoneset' not 'zone activate', and it is a procedural step rather than a best practice.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Make zones as specific as possible, avoiding device inclusion across multiple zones unnecessarily
Why this is correct
Making zones as specific as possible minimizes unnecessary device exposure and reduces the risk of unauthorized access or fabric disruption. Including devices across multiple zones unnecessarily can lead to complex troubleshooting and potential security gaps.
- ✓
Use WWPN-based zoning instead of port-based zoning
Why this is correct
WWPN-based zoning is preferred because WWPNs are static, allowing devices to be moved to different ports without reconfiguring zones. This provides flexibility and simplifies management.
- ✗
Always activate the zone set using the 'zone activate' command in configuration mode
Why it's wrong here
While activating the zone set is necessary for the zones to take effect, the correct Cisco MDS command is 'activate zoneset' not 'zone activate'. More importantly, it is a required step after configuring zones, not a design best practice, so it is not considered one of the three.
- ✓
Use hard zoning (access control list enforcement)
Why this is correct
Hard zoning enforces zone membership at the hardware level using access control lists, preventing unauthorized communication even if a device spoofs its WWPN. This is recommended over soft zoning, which only filters name server responses and is less secure.
- ✗
Use soft zoning with name server response filtering
Why it's wrong here
Soft zoning is less secure than hard zoning.
Visual reference
Go deeper
Related to this question
About these practice questions
One of 984 original 350-601 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more way this is tested on 350-601
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. An engineer is designing a SAN for a virtualized environment. Which two best practices should be followed for Fibre Channel zoning?
medium- ✓ A.Use single-initiator zoning.
- B.Use multiple initiators in a single zone.
- C.Use soft zoning exclusively.
- D.Disable zoning for performance.
- ✓ E.Zone by WWPN rather than WWNN.
Why A: 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.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-601 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-601 exam.