300-320 · Question #148
What network storage protocol uses a connection standard incompatible with shared 10Gb Ethernet physical connection?
The correct answer is C. FC. Native Fibre Channel uses its own dedicated physical layer and connector standards that are incompatible with shared Ethernet physical connections, unlike IP-based storage protocols.
Question
What network storage protocol uses a connection standard incompatible with shared 10Gb Ethernet physical connection?
Options
- ASMB
- BiSCSI
- CFC
- DNFS
- ECIFS
How the community answered
(45 responses)- A4% (2)
- B2% (1)
- C91% (41)
- D2% (1)
Why each option
Native Fibre Channel uses its own dedicated physical layer and connector standards that are incompatible with shared Ethernet physical connections, unlike IP-based storage protocols.
SMB (Server Message Block) is a file-sharing protocol that runs natively over TCP/IP and Ethernet, making it fully compatible with shared 10GbE connections.
iSCSI encapsulates SCSI commands inside TCP/IP packets, making it designed to run over standard Ethernet infrastructure including shared 10GbE.
Fibre Channel is built on its own physical and data-link layer standards using FC-specific HBAs and FC switches with SFP or GBIC connectors running the FC protocol stack. It cannot natively share a standard 10GbE physical connection with Ethernet traffic - FCoE was developed specifically to address this incompatibility by encapsulating FC frames over Ethernet.
NFS (Network File System) is an IP-based file protocol that runs over standard Ethernet and is fully compatible with shared 10GbE physical connections.
CIFS (Common Internet File System) is a dialect of SMB and runs over TCP/IP on standard Ethernet, compatible with shared 10GbE connections.
Concept tested: Fibre Channel physical layer incompatibility with Ethernet
Source: https://www.cisco.com/c/en/us/products/storage-networking/index.html
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