CompTIA
CV0-003 · Question #147
CV0-003 Question #147: Real Exam Question with Answer & Explanation
The correct answer is A: The WWN of the new HBA is not defined in the FC switch.. Fibre Channel switches use WWN-based zoning to control device access, so a replacement HBA with a new WWN must be added to the switch zone configuration before any FC storage resources become accessible.
Question
Anne, a system administrator, has replaced an HBA in one of her servers; however, none of the FC logical drives are accessible. Which of the following is MOST likely to be the case?
Options
- AThe WWN of the new HBA is not defined in the FC switch.
- BThe MAC address of the new HBA is not defined in the FC switch.
- CThe LUN mask of the new HBA is not defined in the FC switch.
- DThe IP of the new HBA is not defined in the FC switch.
Explanation
Fibre Channel switches use WWN-based zoning to control device access, so a replacement HBA with a new WWN must be added to the switch zone configuration before any FC storage resources become accessible.
Common mistakes.
- B. MAC addresses are Ethernet layer-2 identifiers and are not used in Fibre Channel networks; FC uses WWNs for device identification and zoning.
- C. LUN masking is enforced at the storage array or HBA driver level to restrict which LUNs a host can see, not configured on the FC switch itself.
- D. Fibre Channel is not an IP-based protocol; FC switches identify and zone devices by WWN, not by IP address.
Concept tested. Fibre Channel WWN zoning and HBA replacement
Reference. https://docs.broadcom.com/doc/12352478
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