Which of these is not true about peer-to-peer network ?

A peer-to-peer network is a small network in which every connected computer, called a peer, has equal status. There is no dedicated server controlling the network and no strict hierarchy, so each peer can share files or resources directly with any other peer.

Because there is no central server managing user accounts, permissions, or access control, a peer-to-peer network generally has weaker security than a server-based network. Any computer that joins can potentially access shared resources on the other peers, and there is no single point where security policies are centrally enforced. Describing this arrangement as having a strong security system misrepresents how peer-to-peer networks actually work.

When comparing network types, remember that centralised control, including strong security enforcement, is a feature of client-server networks, while peer-to-peer networks trade that central control for simplicity and equal status among computers.