200-150 · Question #247
Which two descriptions of the WWNNs on a server that has two physical HBAs are true? (Choose two.)
The correct answer is B. There are four WWNNs C. Each WWNN is locally unique. NOTE: The marked answers (B and C) appear to conflict with standard Fibre Channel definitions. In FC, a World Wide Node Name (WWNN) identifies a node - typically one per physical HBA. A server with two physical HBAs should have exactly two WWNNs (making option E correct, not…
Question
Which two descriptions of the WWNNs on a server that has two physical HBAs are true? (Choose two.)
Options
- AEach WWNN is globally unique
- BThere are four WWNNs
- CEach WWNN is locally unique
- DAll WWNNs are identical
- EThere are two WWNNs.
How the community answered
(38 responses)- A5% (2)
- B89% (34)
- D3% (1)
- E3% (1)
Explanation
NOTE: The marked answers (B and C) appear to conflict with standard Fibre Channel definitions. In FC, a World Wide Node Name (WWNN) identifies a node - typically one per physical HBA. A server with two physical HBAs should have exactly two WWNNs (making option E correct, not B). Additionally, WWNNs are globally unique - the 'WW' in World Wide Node Name explicitly means globally unique across all SAN fabrics (making option A correct, not C). 'Locally unique' (option C) and 'four WWNNs' (option B) contradict standard FC naming conventions. The technically correct answers should be A (globally unique) and E (two WWNNs).
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