SG0-001 · Question #355
A server has an HBA with the address of 23-00-00-1B-23-C4-B5-01. Which of the following properly identifies this type of address?
The correct answer is D. WWNN. The provided address, 23-00-00-1B-23-C4-B5-01, is an 8-byte hexadecimal value that represents a World Wide Node Name (WWNN), uniquely identifying a Fibre Channel node like an HBA.
Question
A server has an HBA with the address of 23-00-00-1B-23-C4-B5-01. Which of the following properly identifies this type of address?
Options
- AMAC Address
- BFCoE map
- CN-port-ID
- DWWNN
How the community answered
(14 responses)- C7% (1)
- D93% (13)
Why each option
The provided address, 23-00-00-1B-23-C4-B5-01, is an 8-byte hexadecimal value that represents a World Wide Node Name (WWNN), uniquely identifying a Fibre Channel node like an HBA.
A MAC Address is a 6-byte (48-bit) identifier used for Ethernet networking, not Fibre Channel, and has a distinct format.
An FCoE map refers to a mapping between Fibre Channel WWNs and Ethernet MAC addresses, which is a conceptual mapping, not an address type itself.
An N-port-ID (or Fibre Channel Address Identifier) is a 3-byte address assigned by the Fibre Channel switch to a port when it logs in, not the 8-byte permanent WWN of the HBA.
A World Wide Node Name (WWNN) is an 8-byte (64-bit) unique identifier assigned to a Fibre Channel node, such as a Host Bus Adapter (HBA). The given address format, 23-00-00-1B-23-C4-B5-01, precisely matches the structure of a WWNN.
Concept tested: Fibre Channel addressing and identifiers (WWN)
Source: https://www.ibm.com/docs/en/aix/7.2?topic=protocol-fibre-channel-components
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