Version 4.1 - 3.14 PCoIP
PCoIP [PC over IP] is just another proprietary form of RDP/VNC/etc. It was developed by Teradici. The reason it's listed here is because it was licensed by VMware and also licensed for use in AWS (Amazon Workspaces). TCP/UDP port 4172 is the Internet Assigned Numbers Authority (IANA) port assigned to the PCoIP protocol. UDP port 4172 is used for the session data, and TCP port 4172 is used for the session handshake.
Again, this is not something that is probably going to be significant on the exam. Note the ports and be "familiar" with it and move on.