NFS/CIFS versus HTTP REST

Hello,

If I have Atmos deployed on-premise, I assume it will have the NFS/CIFS interface enabled?

If yes, what is the version of NFS that is supported -- 3/4/4.1?

Further, given that NFS access is enabled, are there any metrics based on which we can decide to use REST access over NFS, NFS over CIFS or CIFS over REST?  Does Atmos perform better or offer any advantages when using one protocol over the other?

Are there any benchmark numbers (Reads/Writes per second, ops per second, data throughput etc) that we can refer to for each of these protocols?

thanks,

Navneeth