Unicast
Unicast is a network communication method where data is sent from a single source to a single destination, establishing a one-to-one connection. It is the most common form of data transmission on IP networks, used for standard client-server interactions like web browsing, email, and file transfers. This contrasts with multicast (one-to-many) and broadcast (one-to-all) communication patterns.
Developers should understand unicast when building networked applications that require reliable, point-to-point data exchange, such as web APIs, database connections, or real-time chat systems. It is essential for implementing TCP-based protocols where ordered, error-checked delivery is needed, and for scenarios requiring secure, authenticated communication between specific endpoints.