ANS:D - EuroNET

Packet Switching Network is a Ring Network.

Ring Network is a network topology in which each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node " a ring. Data travels from node to node, with each node along the way handling every packet.

A Packet Switched Network (PSN) is a type of computer communications network that groups and sends data in the form of small packets. It enables the sending of data or network packets between a source and destination node over a network channel that is shared between multiple users and applications.