Answer:
Open shortest path first (OSPF) is utilized when redundant communication link installed.
Explanation:
Redundant communication means that there are many alternate resources available to complete the transmission of data between server and client. These alternate resources can be different medium, networking devices and equipment involved in network installation. The purpose of these alternatives is that, to provide services to the user if any of the network device fails.
If some device or network path has been disturbed due to some fault, alternate path has been selected for communication. For this purpose, Open shortest path First protocol is used, that decide the communication path between server and client by finding shortest and fault free path.
