350-601 · Question #260
What is an advantage of NFSv4 over Fibre Channel protocol?
The correct answer is A. Improved security. NFSv4 introduced mandatory strong security features, including support for Kerberos v5 authentication (RPCSEC_GSS), data integrity, and data privacy - making it more secure by default than Fibre Channel, which relies primarily on physical isolation of the SAN fabric for…
Question
What is an advantage of NFSv4 over Fibre Channel protocol?
Options
- AImproved security
- BLossless throughout
- CCongestion management
- DUses IP transport
How the community answered
(48 responses)- A90% (43)
- B6% (3)
- C2% (1)
- D2% (1)
Explanation
NFSv4 introduced mandatory strong security features, including support for Kerberos v5 authentication (RPCSEC_GSS), data integrity, and data privacy - making it more secure by default than Fibre Channel, which relies primarily on physical isolation of the SAN fabric for security. Fibre Channel is inherently a lossless protocol with built-in flow control (buffer-to-buffer credits), so 'lossless throughput' and 'congestion management' are advantages of FC over NFS, not the other way around. 'Uses IP transport' is a characteristic of NFS but is not an advantage over FC specifically; NFSv3 already used IP. Improved security is the distinguishing advantage NFSv4 brings.
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