Question: What is the significance of the vendor identifier '10415' in the context of the Diameter Inter ProSe Functions Application protocol?
Option 1: It represents the Diameter application identifier for Inter ProSe Functions over the PC6 interface.
Option 2: It signifies the IANA-assigned port number for ProSe communications.
Option 3: It is the vendor identifier assigned by IANA to 3GPP, indicating the organization behind the Diameter application.
Option 4: It denotes the protocol version of the Diameter Inter ProSe Functions Application.
Explanation: In the context of Diameter applications, a vendor-specific application is identified by both a vendor identifier and an application identifier. The vendor identifier '10415' specifically identifies 3GPP as the organization that developed or manages this particular Diameter application, crucial for interoperability and standardization in telecom networks.