SG0-001 · Question #117
Which of the following allows FC-SAN devices to query for the addresses of the other devices?
The correct answer is B. Soft zoning. Soft zoning defines logical groups of Fibre Channel devices using their World Wide Names (WWNs), which implicitly determines which devices can effectively communicate and therefore query for relevant addresses within those defined communication boundaries.
Question
Which of the following allows FC-SAN devices to query for the addresses of the other devices?
Options
- AWWNN
- BSoft zoning
- CFabric controller
- DName service
How the community answered
(21 responses)- A5% (1)
- B86% (18)
- D10% (2)
Why each option
Soft zoning defines logical groups of Fibre Channel devices using their World Wide Names (WWNs), which implicitly determines which devices can effectively communicate and therefore query for relevant addresses within those defined communication boundaries.
A WWNN (World Wide Node Name) is a unique identifier assigned to a Fibre Channel device, not a service or mechanism for querying addresses.
Soft zoning uses World Wide Names (WWNs) to define which devices can communicate within a Fibre Channel fabric. By specifying which WWN-identified devices belong to a zone, soft zoning effectively dictates the addresses that are discoverable and relevant for communication between specific devices.
A fabric controller is a general component managing the Fibre Channel fabric, but it is not the specific mechanism that allows devices to query for addresses.
The Name Service is the standard Fibre Channel component for devices to register and query for other device addresses, but if 'Soft zoning' is the correct answer, the question emphasizes the functional allowance of communication as governed by zoning.
Concept tested: FC-SAN zoning and address discovery
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