A P2P network, or peer-to-peer network, is a decentralized communication model where each participant, or "peer," can act as both a client and a server. This means that users can share resources, such as files or bandwidth, directly with one another without needing a central server. P2P networks are commonly used for file sharing, online gaming, and collaborative projects. In a P2P network, each peer connects to multiple other peers, creating a web-like structure. This design enhances reliability and efficiency, as the network can continue to function even if some peers go offline. Popular examples of P2P applications include BitTorrent for file sharing and Skype for voice communication.