Nokia Optical Network Professional 4A0-205 Question # 10 Topic 2 Discussion

It is an RJ-45 interface (a common Ethernet port) used for cascading 1830 PSS nodes (e.g., external shelves)

It is an RJ-45 interface (a common Ethernet port) that has to be configured with an IP address for node reachability and management

It is an RJ-45 interface (common Ethernet port) used to connect one or more client ports (e.g., 1Gb/s or legacy 100Mbit/s client flows)

It is an RJ-45 interface (a common Ethernet port) used to export active alarms to an external device, typically equipped with several LEDs