Question

what underlying functionality does smb need to enable windows file sharing? a nfs b rmi c rpc d cifs

Explanation:

SMB (Server - Message Block) relies on RPC (Remote Procedure Call) for its underlying functionality to enable Windows file sharing. NFS is a different file - sharing protocol, RMI is used for remote method invocation in Java, and CIFS is a dialect of SMB. RPC allows programs on different systems to communicate as if they were local procedures.

Answer:

C. RPC