Name three data protocols ONTAP supports and a typical use case for each.

• A. NFS for UNIX/Linux clients; SMB/CIFS for Windows clients; iSCSI for block storage for servers.
• B. FTP for file transfer; SSH for remote login; Telnet for terminal access.
• C. HTTP for web services; HTTPS for secure web; SMTP for mail.
• D. VNC for remote desktop; RDP for Windows; SMB for Windows.

Answer: (A)

Access to ONTAP storage is provided through standard data access protocols that cover both file-level and block-level workloads. The best trio here is NFS for Unix/Linux clients, SMB/CIFS for Windows clients, and iSCSI for presenting block storage to servers. NFS lets Unix and Linux machines mount and work with shared files as if they were part of the local filesystem, which is ideal for collaborative file workloads. SMB/CIFS is the Windows counterpart, enabling Windows clients to access shared folders with familiar Windows permissions and authentication. iSCSI, on the other hand, delivers block-level storage over IP, so servers or hypervisors see it as local disks (LUNs) they can partition and format for databases, VMs, or other applications requiring raw storage performance. The other options mix protocols that aren’t used together in ONTAP for this same set of typical use cases: FTP, SSH, and Telnet are for file transfer or remote login rather than ongoing file or block storage access; web and mail protocols (HTTP/HTTPS/SMS) aren’t used to present storage to clients; and remote desktop protocols like VNC or RDP aren’t storage access methods, though SMB can be used for Windows sharing in the correct trio.