Communications protocol and File transfer protocol

Communications protocol noun - (computer science) rules determining the format and transmission of data.

File transfer protocol and communications protocol are semantically related. In some cases you can replace phrase "File transfer protocol" with "Communications protocol", this phrases are similar.

File transfer protocol noun - Protocol that allows users to copy files between their local system and any system they can reach on the network.

Communications protocol and file transfer protocol are semantically related. You can use "Communications protocol" instead a noun phrase "File transfer protocol".